ABOUT Crosstower API

Crosstower REST & Streaming API version 3.0 provides programmatic access to Crosstower’s next generation trading engine.

We strongly recommend that our new customers use API version 3.0 to get the best trading experience. We also recommend that our current traders switch to the newest version 3.0.

API version 2.0 is still available. For detailed description refer to API v2.

By using the Crosstower API you confirm that you have read and accepted the API License Agreement.

DEVELOPMENT GUIDE

API URLs

API Explorer

You can explore the API using SwaggerUI including methods requiring authorization.

DateTime Format

All timestamps are returned in ISO 8601 format or UNIX timestamp in milliseconds (UTC).
Example: "2021-06-03T10:20:49.315Z" or "1614815872000".

Date Format

Some timestamps are returned in ISO 8601 format which includes a calendar date only.
Example: "2021-06-03".

Number Format

All finance data, e.g., price, quantity, fee, etc., should be arbitrary precision numbers and have a string representation.
Example: "10.2000058".

Custom Formats

In nested JSON objects, child objects have custom formats which are described in tables below a place of the first occurrence.

Pagination

Parameters:

Parameter	Description
limit	Number of results per call.
offset	Number of results offset.
sort	Sort direction. Accepted values: ASC (ascending order), DESC (descending order)
by	Filter type. Accepted values: id, timestamp
from	Interval initial value. If filter by timestamp is used, then parameter type is DateTime; otherwise — Number.
till	Interval end value. If filter by timestamp is used, then parameter type is DateTime; otherwise — Number.

RATE LIMITING

The following Rate Limits are applied:

• for the Market data and other /public requests, the limit is 30 requests per second for one IP;
• for Trading, the limit is 500 requests per second for one user. Trading includes place, replace and cancel order requests;
• for all other requests, the limit is 20 requests per second for one user.

Significantly exceeding the Rate Limits can lead to suspension.

Change Log

31.05.2023

• Added a new preferred_network filter in GET /public/currency endpoint.

19.05.2023

• Added price/rate/ feeds in WebSocket market data.

18.04.2023

• Added multichain support.

15.11.2022

• Added WebSocket balance feed.

28.07.2022

• Added One-Triggers-Other (OTO) order lists.

16.03.2022

• Added All-Or-None (AON), One-Cancels-Other (OCO), and One-Triggers-One-Cancels-Other (OTOCO) order lists.

27.12.2021

• Added Take-profit orders.

23.11.2021

• Added Prime Trust.
• Added amount locks.

19.11.2021

• Increased rate limits up to 300 requests per second.

10.11.2021

• Added socket request to get single currency trading balance.
• Allowed to view and get trading history for disabled symbols.
• Allowed to get trading history by several comma-separated symbols.

24.08.2021

• Added ability to request Wallet and Trading balance for a single currency.
• subscribe_balance method replaced by subscribe_wallet_balances. Response was changed. Changes are backward compatible.
• Added taker field to trade execution reports both for REST and WS.
• Fixed market data subscription acknowledgement wasn't returned is some cases.
• Fixed unsubscribe methods on trading subscriptions.
• Fixed documentation inaccuracies for REST and WS order models.

30.07.2021

• General documentation fixes.
• Added Sub-accounts section.

28.07.2021

• APIv3 initial release

BEST PRACTICES

The Crosstower API development team strives to bring the best trading experience to API users. This manual contains a set of best practices for using the API as efficiently as possible.

HTTP Persistent Connection

The underlying TCP connection is kept active for multiple requests/responses. Subsequent requests will result in reduced latency as the TCP handshaking process is no longer required.

If you use the HTTP 1.0 client, please ensure it supports the Keep-Alive directive and submit the "Connection: Keep-Alive" header with a request.

Keep-Alive is a part of the HTTP/1.1 or HTTP/2 protocol and enabled by default on compliant clients. However, you will have to ensure your implementation does not set other values as the connection header.

Retrieving and Updating Account State

Use the Streaming API for real-time updates of orders, trades, and any transaction changes.

REST API Reference

HTTP Status Codes

• 200 OK. Successful request
• 400 Bad Request. Returns JSON with the error message
• 401 Unauthorized. Authorization is required or has been failed
• 403 Forbidden. Action is forbidden
• 404 Not Found. Data requested cannot be found
• 429 Too Many Requests. Your connection has been rate limited
• 500 Internal Server. Internal Server Error
• 503 Service Unavailable. Service is down for maintenance
• 504 Gateway Timeout. Request timeout expired

Error Response

{
    "error": {
        "code": 20001,
        "message": "Insufficient funds",
        "description": "Check that the funds are sufficient, taken into account the commissions"
    }
}

All error responses have error code and human readable message fields. Some errors contain an additional description field.

Market Data

Currencies

Get Currencies

curl "https://api.crosstower.com/api/3/public/currency"

Response:

{
    "BTC":
    {
        "full_name": "test",
        "crypto": true,
        "payin_enabled": true,
        "payout_enabled": true,
        "transfer_enabled": true,
        "sign": "฿",
        "qr_prefix": "bitcointestnet:",
        "crypto_payment_id_name": "",
        "crypto_explorer": "https://blockchain.info/tx/{tx}",
        "precision_transfer": "1",
        "delisted": false,
        "networks":
        [
            {
                "code": "test123",
                "network": "test",
                "protocol": "test123",
                "default": true,
                "is_ens_available": true,
                "payin_enabled": true,
                "payout_enabled": true,
                "precision_payout": "1",
                "payout_fee": "0.000000000000",
                "payout_is_payment_id": false,
                "payin_payment_id": false,
                "payin_confirmations": 3
            }
        ]
    },
    "ETH":
    {
        "full_name": "Ethereum TST",
        "crypto": true,
        "payin_enabled": true,
        "payout_enabled": true,
        "transfer_enabled": true,
        "sign": "E",
        "qr_prefix": "ethereum:",
        "crypto_payment_id_name": "",
        "crypto_explorer": "https://www.etherchain.org/tx/{tx}",
        "precision_transfer": "0.000000000001",
        "delisted": false,
        "networks":
        [
            {
                "code": "ETHTEST",
                "network": "ETHTEST",
                "protocol": "",
                "default": true,
                "is_ens_available": true,
                "payin_enabled": true,
                "payout_enabled": true,
                "precision_payout": "0.000000000000000001",
                "payout_fee": "0.000000000000",
                "payout_is_payment_id": false,
                "payin_payment_id": false,
                "payin_confirmations": 2
            }
        ]
    }
}

GET /api/3/public/currency

Returns the actual list of available currencies, tokens, etc.

You can optionally use a comma-separated list of currencies. If it is not provided, null or empty, the request returns all currencies.

Requires no API key Access Rights.

Parameters:

Name	Type	Description
currencies	String	Optional. Comma-separated list of currency codes.
preferred_network	String	Optional. Code of the default network for currencies.

Response:

Name	Type	Description
full_name	String	Currency full name (e.g., "Bitcoin").
crypto	Boolean	Flag indicating whether the currency is a cryptocurrency.
payin_enabled	Boolean	Flag indicating whether generating deposit addresses is allowed for the currency.
payout_enabled	Boolean	Flag indicating whether withdrawals are allowed for the currency.
transfer_enabled	Boolean	Flag indicating whether transfers between the bank and the exchange accounts are allowed for the network (may be disabled on maintenance).
sign	String	Currency sign.
crypto_payment_id_name	String	The name of an additional account identifier used for the protocol.
crypto_explorer	String	The link to the currency explorer with "{tx}" placeholder instead of a hash.
precision_transfer	Number	The minimum amount of a transfer.
account_top_order	Number	Optional. The absolute position of the currency in the currency list.
qr_prefix	String	The QR prefix used for indication of the currency in a deposit address.
delisted	Boolean	Flag indicating whether the currency has been delisted.
networks	Array of Network	Networks that may host operations on the currency.

Network model consists of:

Name	Type	Description
code	String	Currency code.
network	String	Code of the currency of the hosting network.
is_ens_available	Boolean	Flag indicating whether the network supports ENS (Ethereum Name Service).
protocol	String	Optional. The protocol or the standard powering the network, for example, "ERC20".
default	Boolean	Flag indicating whether the network is the default for the currency.
payin_enabled	Boolean	Flag indicating whether generating deposit addresses is allowed for the network.
payout_enabled	Boolean	Flag indicating whether withdrawals are allowed for the network.
precision_payout	Number	The minimum amount of a withdrawal.
payout_fee	Number	Optional. Default withdrawal fee.
payout_is_payment_id	Boolean	Flag indicating whether providing additional information for withdrawals is needed.
payin_payment_id	Boolean	Flag indicating whether providing additional information for deposits is needed.
payin_confirmations	Number	The number of confirmation needed for a transaction to be accepted in the network.
address_regex	String	Optional. Regular expression to a deposit address.
payment_id_regex	String	Optional. Regular expression for a payment identifier.
low_processing_time	Number	Optional. The lowest processing time in seconds for a withdrawal.
high_processing_time	Number	Optional. The highest processing time in seconds for a withdrawal.
avg_processing_time	Number	Optional. The average processing time in seconds for a withdrawal.
crypto_payment_id_name	String	Optional. Transaction identifier, e.g., comment, message, memo, attachment, etc.
crypto_explorer	String	Optional. The link to the network explorer with "{tx}" placeholder instead of a hash.

Get Currency

curl "https://api.crosstower.com/api/3/public/currency/BTC"

Response:

{
    "full_name": "test",
    "crypto": true,
    "payin_enabled": true,
    "payout_enabled": true,
    "transfer_enabled": true,
    "sign": "฿",
    "qr_prefix": "bitcointestnet:",
    "crypto_payment_id_name": "",
    "crypto_explorer": "https://blockchain.info/tx/{tx}",
    "precision_transfer": "1",
    "delisted": false,
    "networks":
    [
        {
            "code": "test123",
            "network": "test",
            "protocol": "test123",
            "default": true,
            "is_ens_available": true,
            "payin_enabled": true,
            "payout_enabled": true,
            "precision_payout": "1",
            "payout_fee": "0.000000000000",
            "payout_is_payment_id": false,
            "payin_payment_id": false,
            "payin_confirmations": 3
        }
    ]
}

GET /api/3/public/currency/{currency}

Returns the data for a certain currency.

Requires no API key Access Rights.

Response:

Name	Type	Description
full_name	String	Currency full name (e.g., "Bitcoin").
crypto	Boolean	Flag indicating whether the currency is a cryptocurrency.
payin_enabled	Boolean	Flag indicating whether generating deposit addresses is allowed for the currency.
payout_enabled	Boolean	Flag indicating whether withdrawals are allowed for the currency.
transfer_enabled	Boolean	Flag indicating whether transfers between the bank and the exchange accounts are allowed for the network (may be disabled on maintenance).
sign	String	Currency sign.
crypto_payment_id_name	String	The name of an additional account identifier used for the protocol.
crypto_explorer	String	The link to the currency explorer with "{tx}" placeholder instead of a hash.
precision_transfer	Number	The minimum amount of a transfer.
account_top_order	Number	Optional. The absolute position of the currency in the currency list.
qr_prefix	String	The QR prefix used for indication of the currency in a deposit address.
delisted	Boolean	Flag indicating whether the currency has been delisted.
networks	Array of Network	Networks that may host operations on the currency.

Symbols

Get Symbols

curl "https://api.crosstower.com/api/3/public/symbol"

Response:

{
    "ETHBTC": {
        "type": "spot",
        "base_currency": "ETH",
        "quote_currency": "BTC",
        "status": "working",
        "quantity_increment": "0.001",
        "tick_size": "0.000001",
        "take_rate": "0.001",
        "make_rate": "-0.0001",
        "fee_currency": "BTC"
    }
}

GET /api/3/public/symbol

Returns the actual list of currency symbols (currency pairs) traded on exchange. The first listed currency of a symbol is called the base currency, and the second currency is called the quote currency. The currency pair indicates how much of the quote currency is needed to purchase one unit of the base currency. Read more

You can optionally use a comma-separated list of symbols. If it is not provided, null or empty, the request returns all symbols.

Requires no API key Access Rights.

All parameters are optional.

Parameters:

Name	Type	Description
symbols	String	Comma-separated list of symbol codes.

Response:

Name	Type	Description
type	String	Symbol type. Possible values: spot
base_currency	String	Name (code) of base currency, (e.g., "ETH").
quote_currency	String	Name (code) of quote currency.
status	String	Exchange status. Possible values: working, suspended
quantity_increment	Number	Symbol quantity should be divided by this value with no remainder.
tick_size	Number	Symbol price should be divided by this value with no remainder.
take_rate	Number	Default fee rate.
make_rate	Number	Default fee rate for market making trades.
fee_currency	String	Currency in which fees are determined.

Get Symbol

curl "https://api.crosstower.com/api/3/public/symbol/ETHBTC"

Response:

{
    "type": "spot",
    "base_currency": "ETH",
    "quote_currency": "BTC",
    "status": "working",
    "quantity_increment": "0.0001",
    "tick_size": "0.000001",
    "take_rate": "0.002",
    "make_rate": "0.001",
    "fee_currency": "BTC"
}

GET /api/3/public/symbol/{symbol}

Returns the data for a certain symbol.

Requires no API key Access Rights.

Response:

Name	Type	Description
type	String	Symbol type. Possible values: spot
base_currency	String	Name (code) of base currency, (e.g., "ETH").
quote_currency	String	Name (code) of quote currency.
status	String	Exchange status. Possible values: working, suspended
quantity_increment	Number	Symbol quantity should be divided by this value with no remainder.
tick_size	Number	Symbol price should be divided by this value with no remainder.
take_rate	Number	Default fee rate.
make_rate	Number	Default fee rate for market making trades.
fee_currency	String	Currency in which fees are determined.

Get Symbols Mappings

curl -X GET -H "broker-id:1" \
     "https://{host}/api/3/public/mapping/symbol?symbols=WAVESUSD,REPETH"

The above command returns JSON structured like this:

{
   "WAVESUSD":{
      "core_symbol_id":1499,
      "core_symbol":"WAVESUSD",
      "core_base_currency":"WAVES",
      "core_quote_currency":"USD",
      "core_fee_currency":"USD",
      "quantity_increment":"0.01",
      "tick_size":"0.00001"
   },
   "REPETH":{
      "core_symbol_id":564,
      "core_symbol":"REPETH",
      "core_base_currency":"REP",
      "core_quote_currency":"ETH",
      "core_fee_currency":"ETH",
      "quantity_increment":"0.001",
      "tick_size":"0.000001"
}

GET /api/3/public/mapping/symbol

Returns symbols mappings from the Trading Terminal to the Matching Engine.

Parameters:

Name	Type	Description
symbols	String	Optional. Symbol code or codes, separated by commas.

Response:

Name	Type	Description
core_symbol_id	Number	Symbol identifier in the Matching Engine.
core_symbol	String	Symbol code in the Matching Engine.
core_base_currency	String	Base currency code in the Matching Engine.
core_quote_currency	String	Quote currency code in the Matching Engine.
core_fee_currency	String	The currency used for charging fees.
quantity_increment	Number	Quantity should be divided by this value without residue.
tick_size	Number	Price should be divided by this value without residue.

Get Symbol Mapping

curl -X GET -H "broker-id:1" \
     "https://{host}/api/3/public/mapping/symbol/WAVESUSD"

The above command returns JSON structured like this:

{
    "core_symbol_id":1499,
    "core_symbol":"WAVESUSD",
    "core_base_currency":"WAVES",
    "core_quote_currency":"USD",
    "core_fee_currency":"USD",
    "quantity_increment":"0.01",
    "tick_size":"0.00001"
}

GET /api/3/public/mapping/symbol/{symbol}

Returns symbol mapping from the Trading Terminal to the Matching Engine.

Parameters:

Name	Type	Description
symbol	String	Symbol code.

Response:

Name	Type	Description
core_symbol_id	Number	Symbol identifier in the Matching Engine.
core_symbol	String	Symbol code in the Matching Engine.
core_base_currency	String	Base currency code in the Matching Engine.
core_quote_currency	String	Quote currency code in the Matching Engine.
core_fee_currency	String	The currency used for charging fees.
quantity_increment	Number	Quantity should be divided by this value without residue.
tick_size	Number	Price should be divided by this value without residue.

Tickers

Get Tickers

curl "https://api.crosstower.com/api/3/public/ticker"

Response:

{
    "ETHBTC": {
        "ask": "0.050043",
        "bid": "0.050042",
        "last": "0.050042",
        "low": "0.047052",
        "high": "0.051679",
        "open": "0.047800",
        "volume": "36456.720",
        "volume_quote": "1782.625000",
        "timestamp": "2021-06-12T14:57:19.999Z"
    }
}

GET /api/3/public/ticker

Returns ticker information.

You can optionally use a comma-separated list of symbols. If it is not provided, null or empty, the request returns tickers for all symbols.

Requires no API key Access Rights.

Parameters:

Name	Type	Description
symbols	String	Optional. Comma-separated list of symbol codes.

Response:

Name	Type	Description
ask	Number or null	Best ask price. Can return null if no data.
bid	Number or null	Best bid price. Can return null if no data.
last	Number or null	Last trade price. Can return null if no data.
low	Number	The lowest trade price within 24 hours.
high	Number	The highest trade price within 24 hours.
open	Number or null	Last trade price 24 hours ago. Can return null if no data.
volume	Number	Total trading amount within 24 hours in base currency.
volume_quote	Number	Total trading amount within 24 hours in quote currency.
timestamp	DateTime	Last update or refresh ticker timestamp.

Get Ticker by Symbol

curl "https://api.crosstower.com/api/3/public/ticker/ETHBTC"

Response:

{
    "ask": "0.020572",
    "bid": "0.020566",
    "last": "0.020574",
    "low": "0.020388",
    "high": "0.021084",
    "open": "0.020913",
    "volume": "138444.3666",
    "volume_quote": "2853.6874972480",
    "timestamp": "2021-06-02T17:52:36.731Z"
}

GET /api/3/public/ticker/{symbol}

Returns the ticker for a certain symbol.

Requires no API key Access Rights.

Response:

Name	Type	Description
ask	Number or null	Best ask price. Can return null if no data.
bid	Number or null	Best bid price. Can return null if no data.
last	Number or null	Last trade price. Can return null if no data.
low	Number	The lowest trade price within 24 hours.
high	Number	The highest trade price within 24 hours.
open	Number or null	Last trade price 24 hours ago. Can return null if no data.
volume	Number	Total trading amount within 24 hours in base currency.
volume_quote	Number	Total trading amount within 24 hours in quote currency.
timestamp	DateTime	Last update or refresh ticker timestamp.

Prices

Get Prices

curl "https://api.crosstower.com/api/3/public/price/rate?from=ETH&to=BTC"

Response:

{
    "ETH":{
        "currency": "BTC",
        "price": "0.021084",
        "timestamp": "2021-06-02T17:52:36.731Z"
    }
}

GET /api/3/public/price/rate

Returns currencies quotation prices.

Requires no API key Access Rights.

Parameters:

Name	Type	Description
from	String	Source currency code.
to	String	Target currency code.

Response:

Name	Type	Description
currency	String	Quote currency code.
price	Number	Quotation price.
timestamp	DateTime	Last update or refresh price timestamp.

Get Prices History

curl "https://api.crosstower.com/api/3/public/price/history?from=ETH&to=BTC"

Response:

{
    "ETH":{
        "currency": "BTC",
        "history":[
            {
                "timestamp": "2021-07-01T20:00:00.000Z",
                "open": "0.063420",
                "close": "0.063767",
                "min": "0.063403",
                "max": "0.063782"
            }
        ]
}

GET /api/3/public/price/history

Returns quotation prices history.

Requires no API key Access Rights.

Parameters:

Name	Type	Description
from	String	Source currency code.
to	String	Target currency code.
until	DateTime	Optional. Interval end value.
since	DateTime	Optional. Interval initial value.
limit	Number	Optional Default value: 1 Accepted values: 1 – 1000
period	String	Optional. Accepted values: M1 (one minute), M3, M5, M15, M30, H1 (one hour), H4, D1 (one day), D7, 1M (one month) Default value: M30 (30 minutes)
sort	String	Optional. Sort direction. Accepted values: ASC, DESC Default value: DESC

Response:

Name	Type	Description
currency	String	Quote currency code.
history	History	Quotation price history entry.

History model consists of:

Name	Type	Description
timestamp	DateTime	Last update or refresh price timestamp.
open	Number	Open price.
close	Number	Closing price.
min	Number	The lowest price for the period.
max	Number	The highest price for the period.

Get Ticker Last Prices

curl "https://api.crosstower.com/api/3/public/price/ticker"

Response:

{
    "ETHBTC": {
        "price": "0.050042",
        "timestamp": "2021-06-12T14:57:19.999Z"
    }
}

GET /api/3/public/price/ticker

Returns tickers' last prices for all symbols.

You can optionally use a comma-separated list of symbols. If it is not provided, null or empty, the request returns tickers' last prices for all symbols.

Requires no API key Access Rights.

Parameters:

Name	Type	Description
symbols	String	Optional. Comma-separated list of symbol codes.

Response:

Name	Type	Description
price	Number	Ticker last price.
timestamp	DateTime	Last update or refresh ticker timestamp.

Get Ticker Last Price by Symbol

curl "https://api.crosstower.com/api/3/public/price/ticker/ETHBTC"

Response:

{
    "price": "0.021084",
    "timestamp": "2021-06-02T17:52:36.731Z"
}

GET /api/3/public/price/ticker/{symbol}

Returns the ticker last price for a certain symbol.

Requires no API key Access Rights.

Response:

Name	Type	Description
price	Number	Ticker last price.
timestamp	DateTime	Last update or refresh ticker timestamp.

Trades

Get Trades

curl "https://api.crosstower.com/api/3/public/trades"

Response:

{
    "BTCUSDT":[
        {
            "id":3494,
            "price":"9793.94",
            "qty":"0.21469",
            "side":"sell",
            "timestamp":"2021-06-24T12:54:41.972Z"
        }
    ],
    "ETHBTC":[
        {
            "id":3495,
            "price":"0.027668",
            "qty":"0.069",
            "side":"buy",
            "timestamp":"2021-06-24T12:54:32.843Z"
        }
    ]
}

GET /api/3/public/trades

Returns trades information for all or multiple symbols.

You can optionally use a comma-separated list of symbols. If it is not provided, null or empty, the request returns trades for all symbols.

Requires no API key Access Rights.

All parameters are optional.

Parameters:

Name	Type	Description
symbols	String	Comma-separated list of symbol codes.
by	String	Filter type. Accepted values: id, timestamp Default value: timestamp
sort	String	Sort direction. Accepted values: ASC, DESC Default value: DESC
from	DateTime or Number	Interval initial value. If sorting by timestamp is used, then DateTime; otherwise — Number.
till	DateTime or Number	Interval end value. If sorting by timestamp is used, then DateTime; otherwise — Number.
limit	Number	Default value: 10 Accepted values: 1 – 1000

Response:

Name	Type	Description
id	Number	Trade identifier.
price	Number	Trade price.
qty	Number	Trade quantity.
side	String	Trade side. Accepted values: sell, buy
timestamp	DateTime	Trade timestamp.

Get Trades by Symbol

curl "https://api.crosstower.com/api/3/public/trades/ETHBTC?sort=DESC"

Response:

[
    {
        "id": 9533117,
        "price": "0.046001",
        "qty": "0.220",
        "side": "sell",
        "timestamp": "2021-06-14T12:18:40.426Z"
    },
    {
        "id": 9533116,
        "price": "0.046002",
        "qty": "0.022",
        "side": "buy",
        "timestamp": "2021-06-14T11:56:37.027Z"
    }
]

GET /api/3/public/trades/{symbol}

Returns trades information for a certain symbol.

Requires no API key Access Rights.

All parameters are optional.

Parameters:

Name	Type	Description
by	String	Filter type. Accepted values: id, timestamp Default value: timestamp
sort	String	Sort direction. Accepted values: ASC, DESC Default value: DESC
from	DateTime or Number	Optional. Interval initial value. If sorting by timestamp is used, then DateTime; otherwise — Number.
till	DateTime or Number	Optional. Interval end value. If sorting by timestamp is used, then DateTime; otherwise — Number.
limit	Number	Default value: 100 Accepted values: 1 – 1000
offset	Number	Default value: 0 Accepted values: 0 – 100000

Response:

Name	Type	Description
id	Number	Trade identifier.
price	Number	Trade price.
qty	Number	Trade quantity.
side	String	Trade side. Possible values: sell, buy
timestamp	DateTime	Trade timestamp.

Order Books

Get Order Books

curl "https://api.crosstower.com/api/3/public/orderbook"

Response:

{
    "BTCUSDT": {
        "timestamp": "2021-06-11T11:18:03.857366871Z",
        "ask": [
          [
            "9777.51",                      // Price
            "4.50579"                       // Amount
          ],
          [
            "9777.52",
            "5.79832"
          ]
        ],
        "bid": [
          [
            "9777.5",
            "0.00002"
          ],
          [
            "9776.26",
            "0.0001"
          ]
        ]
      },
      "ETHBTC": {
        "timestamp": "2021-06-11T11:18:03.790858502Z",
        "ask": [
          [
            "0.022626",
            "0.0057"
          ],
          [
            "0.022628",
            "1.4259"
          ]
        ],
        "bid": [
          [
            "0.022624",
            "0.5748"
          ],
          [
            "0.022623",
            "26.5"
          ]
        ]
    }
}

GET /api/3/public/orderbook

An Order Book is a list of buy and sell orders for a specific symbol, structured by price level.

You can optionally use a comma-separated list of symbols. If it is not provided, null or empty, the request returns an Order Book for all symbols.

Requires no API key Access Rights.

Parameters:

Name	Type	Description
depth	Number	Optional. Order Book depth. Default value: 10 Set to 0 to view the full Order Book.
symbols	String	Optional. Comma-separated list of symbol codes.

Response:

Name	Type	Description
timestamp	DateTime	Publication timestamp.
ask	Array	Ask side array of levels.
bid	Array	Bid side array of levels.

Get Order Book by Symbol

curl "https://api.crosstower.com/api/3/public/orderbook/ETHBTC?volume=0.5"

Response:

{
    "timestamp": "2021-06-11T11:30:38.597950917Z",
    "ask": [
      [
        "9779.68",                          // Price
        "2.497"                             // Quantity
      ]
    ],
    "bid": [
      [
        "9779.67",
        "0.03719"
      ],
      [
        "9779.29",
        "0.171"
      ],
      [
        "9779.27",
        "0.171"
      ],
      [
        "9779.21",
        "0.171"
      ]
    ]
}

GET /api/3/public/orderbook/{symbol}

The request returns an Order Book for a certain symbol.

Requires no API key Access Rights.

Parameters:

Name	Type	Description
depth	Number	Optional. Order Book depth. Default value: 100 Set to 0 to view the full Order Book.
volume	Number	Optional. Desired volume for market depth search.

Please note that if the volume is specified, the depth will be ignored.

Response:

Name	Type	Description
timestamp	DateTime	Publication timestamp.
ask	Array	Ask side array of levels.
bid	Array	Bid side array of levels.

Candles

Get Candles

curl "https://api.crosstower.com/api/3/public/candles"

Response:

{
    "BTCUSDT":[
      {
        "timestamp": "2021-07-01T20:00:00.000Z",
        "open": "33079.93",
        "close": "33236.53",
        "min": "33079.93",
        "max": "33295.73",
        "volume": "146.86223",
        "volume_quote": "4877838.3025063"
      }
   ],
   "ETHBTC":[
      {
        "timestamp": "2021-07-01T20:00:00.000Z",
        "open": "0.063420",
        "close": "0.063767",
        "min": "0.063403",
        "max": "0.063782",
        "volume": "866.6776",
        "volume_quote": "55.2132903904"
      }
    ]
}

GET /api/3/public/candles

Candles are used for the representation of a specific symbol as an OHLC chart.

You can optionally use a comma-separated list of symbols. If it is not provided, null or empty, the request returns candles for all symbols.

Requires no API key Access Rights.

All parameters are optional.

Parameters:

Name	Type	Description
symbols	String	Comma-separated list of symbol codes.
sort	String	Sort direction. Accepted values: ASC, DESC Default value: DESC
period	String	Accepted values: M1 (one minute), M3, M5, M15, M30, H1 (one hour), H4, D1 (one day), D7, 1M (one month) Default value: M30 (30 minutes)
from	DateTime	Interval initial value.
till	DateTime	Interval end value.
limit	Number	Default value: 10 Accepted values: 1 – 1000

Response:

Name	Type	Description
timestamp	DateTime	Candle timestamp.
open	Number	Open price.
close	Number	Closing price.
min	Number	The lowest price for the period.
max	Number	The highest price for the period.
volume	Number	Volume in base currency.
volume_quote	Number	Volume in quote currency.

Get Candles by Symbol

curl "https://api.crosstower.com/api/3/public/candles/ETHBTC"

Response:

[
    {
        "timestamp": "2021-06-20T20:00:00.000Z",
        "open": "0.050459",
        "close": "0.050087",
        "min": "0.050000",
        "max": "0.050511",
        "volume": "1326.628",
        "volume_quote": "66.555987736"
    },
    {
        "timestamp": "2021-06-20T20:30:00.000Z",
        "open": "0.050108",
        "close": "0.050139",
        "min": "0.050068",
        "max": "0.050223",
        "volume": "87.515",
        "volume_quote": "4.386062831"
    }
]

GET /api/3/public/candles/{symbol}

Returns candles for a certain symbol.

Requires no API key Access Rights.

All parameters are optional.

Parameters:

Name	Type	Description
sort	String	Sort direction. Accepted values: ASC, DESC Default value: DESC
period	String	Accepted values: M1 (one minute), M3, M5, M15, M30, H1 (one hour), H4, D1 (one day), D7, 1M (one month) Default value: M30 (30 minutes)
from	DateTime	Interval initial value.
till	DateTime	Interval end value.
limit	Number	Default value: 100 Accepted values: 1 – 1000
offset	Number	Default value: 0 Accepted values: 0 – 100000

Response:

Name	Type	Description
timestamp	DateTime	Candle timestamp.
open	Number	Open price.
close	Number	Closing price.
min	Number	The lowest price for the period.
max	Number	The highest price for the period.
volume	Number	Volume in base currency.
volume_quote	Number	Volume in quote currency.

Authentication

Public market data are available without authentication. Authentication is required for other requests.

You should create API keys on the API Settings page. You can create multiple API keys with different access rights for your applications.

Alternatively, you may obtain API keys via the Auth API by creating a session (POST /account/auth) and an API key (POST /api-key).

Basic

curl -u "apiKey:secretKey" https://api.crosstower.com/api/3/spot/balance

import requests
session = requests.session()
session.auth = ("apiKey", "secretKey")

const fetch = require('node-fetch');

const credentials = Buffer.from('apiKey' + ':' + 'secretKey').toString('base64');

fetch('https://api.crosstower.com/api/3/spot/balance', {
    method: 'GET',
    headers: {
        'Authorization': 'Basic ' + credentials
    }
});

To authorize, place credentials to the request header. Those must be constituted of apiKey and secretKey as follows: "Basic " + apiKey + ":" + secretKey.

HS256

from base64 import b64encode
from hashlib import sha256
from hmac import HMAC
from time import time
from urllib.parse import urlsplit
from requests import Session
from requests.auth import AuthBase

class HS256(AuthBase):

    def __init__(self, api_key: str, secret_key: str, window: int = None):
        self.api_key = api_key
        self.secret_key = secret_key
        self.window = window

    def __call__(self, r):
        url = urlsplit(r.url)
        message = [r.method, url.path]
        if url.query:
            message.append('?')
            message.append(url.query)
        if r.body:
            message.append(r.body)

        timestamp = str(int(time() * 1000))
        window = str(self.window) if self.window else None
        message.append(timestamp)
        if window:
            message.append(window)

        signature = HMAC(key=self.secret_key.encode(),
                         msg=''.join(message).encode(),
                         digestmod=sha256).hexdigest()
        data = [self.api_key, signature, timestamp]
        if window:
            data.append(window)

        base64_encoded = b64encode(':'.join(data).encode()).decode()
        r.headers['Authorization'] = f'HS256 {base64_encoded}'
        return r

auth = HS256(api_key='apiKey', secret_key='secretKey')
with Session() as s:
    response = s.get('https://api.crosstower.com/api/3/spot/balance', auth=auth)
    print(response.json())

The alternative authentication method is the HMAC signature.

To send a request, you should establish a persistent session using the credentials signed as follows:

1. Create an HMAC signature with secret_key as the secret key, SHA256 as the hash algorithm, and payload as the message, structured like:
   <method> + <URL path> + [“?” + <query>] + [<body>] + <timestamp> + [<window>]
2. Add the authorization header to a request. It should have the following structure:
   "HS256 " + Base64(api_key + ":" + <HMAC signature> + ":" + timestamp + [":" + window])

Spot Trading

Order Model

{
    "id": 828680665,
    "client_order_id": "f4307c6e507e49019907c917b6d7a084",
    "symbol": "ETHBTC",
    "side": "sell",
    "status": "partiallyFilled",
    "type": "limit",
    "time_in_force": "GTC",
    "quantity": "13.942",
    "price": "0.011384",
    "quantity_cumulative": "5.240",
    "created_at": "2021-06-16T14:18:47.321Z",
    "updated_at": "2021-06-16T14:18:47.321Z",
    "post_only": false,
    "trades": [
        {
            "id": 1361171432,
            "quantity": "5.240",
            "price": "0.011384",
            "fee": "0.001237803000",
            "taker": true,
            "timestamp": "2021-06-16T14:18:47.321Z"
        }
    ]
}

Order model consists of:

Name	Type	Description
id	Number	Unique order identifier as assigned by exchange.
client_order_id	String	Unique order identifier as assigned by the trader. Uniqueness must be guaranteed until the last order with the same client_order_id becomes inactive (canceled, expired, or fully executed) and some time after that.
order_list_id	String	Optional. Order list identifier. Returned only for an order list request.
contingency_type	String	Optional. Order list type. Returned only for an order list request. Possible values: allOrNone, oneCancelOther, oneTriggerOther, oneTriggerOneCancelOther
symbol	String	Symbol code.
side	String	Trade side. Possible values: sell, buy
status	String	Order state. Possible values: new — an order is placed in the order book. suspended — a stopLimit, stopMarket, takeProfitLimit or takeProfitMarket order is parked until it meets the conditions for placement in the order book. partiallyFilled — an order is executed, but a part of its quantity is not filled yet. filled — order quantity filled completely. canceled — an order is canceled. It can either be done by a user through a cancel/replace request or by the system under specific circumstances. expired — an order is deactivated after it no longer satisfies Time in Force (IOC, FOK) or Post Only requirements.
type	String	Order type. Possible values: limit, market, stopLimit, stopMarket, takeProfitLimit, takeProfitMarket
time_in_force	String	Time in Force is a special instruction used when placing an order to indicate how long it will remain active before it is executed or expired. GTC — "Good-Till-Canceled" order won't be closed until it is filled. IOC — "Immediate-Or-Cancel" order must be executed immediately. Any part of an IOC order that cannot be filled immediately will be canceled. FOK — "Fill-Or-Kill" order must be executed immediately and completely or not executed at all. Day — keeps the order active until the end of the trading day (23:59 UTC+0). GTD — "Good-Till-Date" order may remain active until the time specified in expire_time.
quantity	Number	Order quantity.
quantity_cumulative	Number	Executed order quantity.
price	Number	Optional. Order price.
stop_price	Number	Optional. The price level that triggers order activation. Specified if type is stopLimit, stopMarket, takeProfitLimit, or takeProfitMarket.
expire_time	DateTime	Optional. Date of order expiration. Specified if time_in_force is GTD.
post_only	Boolean	A post-only order is an order that does not remove liquidity. If a post-only order causes a match with a pre-existing order as a taker, then the order will expire.
original_client_order_id	String	Optional. Identifier of replaced order.
created_at	DateTime	Date of order's creation.
updated_at	DateTime	Date of order's last update.
trades	Array of Trade	Optional. List of trades. Never returned for an order list request.

Trade model consists of:

Name	Type	Description
id	Number	Trade identifier.
quantity	Number	Quantity of trade.
price	Number	Trade price.
fee	Number	Fee paid for trade.
taker	Boolean	Liquidity indicator.
timestamp	DateTime	Date of trade.

Get Spot Trading Balance

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/spot/balance"

import requests
session = requests.session()
session.auth = ("apiKey", "secretKey")
b = session.get('https://api.crosstower.com/api/3/spot/balance').json()
print(b)

Response. All currencies:

[
    {
        "currency": "ETH",
        "available": "10.000000000",
        "reserved": "0.56"
    },
    {
        "currency": "BTC",
        "available": "0.010205869",
        "reserved": "0"
    }
]

Response. One currency:

{
    "available": "10.000000000",
    "reserved": "0.56"
}

GET /api/3/spot/balance GET /api/3/spot/balance/{currency}

Returns the user's trading balance.

Requires the "Orderbook, History, Trading balance" API key Access Right.

Parameters:

Name	Type	Description
currency	String	Optional. Currency filter.

Response:

Name	Type	Description
currency	String	Currency code.
available	Number	Amount available for trading or transfer to wallet.
reserved	Number	Total amount reserved for active orders and incomplete transfers to wallet.

Get All Active Spot Orders

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/spot/order"

import requests
session = requests.session()
session.auth = ("apiKey", "secretKey")
b = session.get('https://api.crosstower.com/api/3/spot/order').json()
print(b)

Response:

[
    {
        "id": 840450210,
        "client_order_id": "c1837634ef81472a9cd13c81e7b91401",
        "symbol": "ETHBTC",
        "side": "buy",
        "status": "partiallyFilled",
        "type": "limit",
        "time_in_force": "GTC",
        "quantity": "0.020",
        "price": "0.046001",
        "quantity_cumulative": "0.005",
        "post_only": false,
        "created_at": "2021-06-12T17:17:57.437Z",
        "updated_at": "2021-06-12T17:18:08.610Z"
    }
]

GET /api/3/spot/order

Returns a list of all active spot orders.

Requires the "Orderbook, History, Trading balance" API key Access Right.

Parameters:

Name	Type	Description
symbol	String	Optional. Parameter to filter active spot orders by symbol.

Response: array of spot orders

Get Active Spot Order

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/spot/order/c1837634ef81472a9cd13c81e7b91401"

import requests
session = requests.session()
session.auth = ("apiKey", "secretKey")
b = session.get('https://api.crosstower.com/api/3/spot/order/c1837634ef81472a9cd13c81e7b91401').json()
print(b)

Response:

{
    "id": 840450210,
    "client_order_id": "c1837634ef81472a9cd13c81e7b91401",
    "symbol": "ETHBTC",
    "side": "buy",
    "status": "partiallyFilled",
    "type": "limit",
    "time_in_force": "GTC",
    "quantity": "0.020",
    "price": "0.046001",
    "quantity_cumulative": "0.005",
    "post_only": false,
    "created_at": "2021-06-12T17:17:57.437Z",
    "updated_at": "2021-06-12T17:18:08.610Z"
}

GET /api/3/spot/order/{client_order_id}

Returns an active spot order by client_order_id.

Requires the "Orderbook, History, Trading balance" API key Access Right.

Response: spot order

Create New Spot Order

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/spot/order" \
    -d "symbol=ETHBTC&side=sell&quantity=0.063&price=0.046016"

    import requests
    session = requests.session()
    session.auth = ("apiKey", "secretKey")
    orderData = {'symbol':'ETHBTC', 'side': 'sell', 'quantity': '0.063', 'price': '0.046016' }
    r = session.post('https://api.crosstower.com/api/3/spot/order/', data = orderData)

    print(r.json())

Response:

{
    "id": 0,
    "client_order_id": "d8574207d9e3b16a4a5511753eeef175",
    "symbol": "ETHBTC",
    "side": "sell",
    "status": "new",
    "type": "limit",
    "time_in_force": "GTC",
    "quantity": "0.063",
    "price": "0.046016",
    "quantity_cumulative": "0.000",
    "post_only": false,
    "created_at": "2021-06-15T17:01:05.092Z",
    "updated_at": "2021-06-15T17:01:05.092Z"
}

Error response example:

{
    "error": {
        "code": 20001,
        "message": "Insufficient funds",
        "description": "Check that the funds are sufficient, given commissions"
    }
}

POST /api/3/spot/order

Creates a new spot order.

Requires the "Place/cancel orders" API key Access Right.

Parameters:

Name	Type	Description
client_order_id	String	Optional. If omitted, an order will be created, and it will be generated by the Server. Uniqueness must be guaranteed until the last order with the same client_order_id becomes inactive (canceled, expired, or fully executed) and some time after that. Must be from 8 to 32 long. May include Latin letters of any case, digits, and _, -. If specified and corresponds to an existing order, a request will be rejected.
symbol	String	Symbol code.
side	String	Trade side. Accepted values: sell, buy
type	String	Optional. Order type. Must be set to market, stopMarket, or takeProfitMarket if price was left unspecified. Accepted values: limit, market, stopLimit, stopMarket, takeProfitLimit, takeProfitMarket Default value: limit
time_in_force	String	Optional. Time in Force instruction. Accepted values: GTC, IOC, FOK, Day, GTD Default value: GTC
quantity	Number	Order quantity.
price	Number	Order price. Required if type is limit, stopLimit, or takeProfitLimit.
stop_price	Number	The price level that triggers order activation. Required if type is stopLimit, stopMarket, takeProfitLimit, or takeProfitMarket.
expire_time	DateTime	Date of order expiration. Required if time_in_force is GTD.
strict_validate	Boolean	Price and quantity will be checked for incrementation within the symbol’s tick size and quantity step. See the symbol's tick_size and quantity_increment.
post_only	Boolean	Optional. If a post-only order causes a match with a pre-existing order as a taker, then the order will expire.
take_rate	Number	Optional. Liquidity taker fee, a fraction of order volume, such as 0.001 (for 0.1% fee). Can only increase the fee. Used for fee markup.
make_rate	Number	Optional. Liquidity provider fee, a fraction of order volume, such as 0.001 (for 0.1% fee). Can only increase the fee. Used for fee markup.

Response: spot order

Price accuracy and quantity

Symbol config contains the tick_size parameter which means that price should be divided by tick_size with no remainder.
quantity should be divided by quantity_increment with no remainder.
By default, if strict_validate is not enabled, the Server rounds half down the price and quantity for tick_size and quantity_increment.

Example of ETHBTC: if tick_size is 0.000001, then price 0.046016 is valid, and 0.0460165 is invalid.

Fees

Charged fee is determined by the symbol's fee_currency. Maker-taker fees offer a transaction rebate make_rate to those who provide liquidity (a maker), while charging customers who take that liquidity take_rate (a taker).

To create buy orders, you must have sufficient balance including fees.

To create market buy orders, you must have sufficient balance including fees, considering maximum possible market order slippage of 10%.
Available balance > price × quantity × 1.1 + price × quantity × 1.1 × max(take_rate, make_rate)

Order result status

For orders with time_in_force equal to IOC or FOK, the REST API returns final order status: filled or expired.

If an order can be instantly executed, then the REST API returns a status of filled or partiallyFilled in the order's info.

Create New Spot Order List

AON request:

curl -X POST \
    -H 'Content-Type: application/json'\
    -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/spot/order/list"
    -d '{
            "contingency_type": "allOrNone",
            "orders": [
                {
                    "symbol": "ETHBTC",
                    "side": "sell",
                    "quantity": "0.063",
                    "type": "market",
                    "time_in_force": "FOK"
                },
                {
                    "symbol": "BTCUSDT",
                    "side": "sell",
                    "quantity": "0.057",
                    "type": "market",
                    "time_in_force": "FOK"
                }
            ]
        }'

    import requests
    session = requests.session()
    session.auth = ("apiKey", "secretKey")
    headers = {'Content-Type': 'application/json'}
    orderData = '{"contingency_type": "allOrNone", "orders": [{"symbol": "ETHBTC", "side": "sell", "quantity": "0.063", "type": "market", "time_in_force": "FOK"}, {"symbol": "BTCUSDT", "side": "sell", "quantity": "0.057", "type": "market", "time_in_force": "FOK"}]}'
    r = session.post('https://api.crosstower.com/api/3/spot/order/list', data = orderData, headers=headers)

    print(r.json())

AON response:

[
    {
        "id": 840450210,
        "client_order_id": "d8574207d9e3b16a4a5511753eeef175",
        "symbol": "ETHBTC",
        "side": "sell",
        "status": "filled",
        "type": "market",
        "time_in_force": "FOK",
        "quantity": "0.063",
        "price": "0.071476",
        "quantity_cumulative": "0.000",
        "post_only": false,
        "order_list_id": "d8574207d9e3b16a4a5511753eeef175",
        "contingency_type": "allOrNone",
        "created_at": "2021-06-15T17:01:05.092Z",
        "updated_at": "2021-06-15T17:01:05.092Z"
    },
    {
        "id": 840450211,
        "client_order_id": "a53406ea49e160c63b620ca21e9fb634",
        "symbol": "BTCUSDT",
        "side": "sell",
        "status": "filled",
        "type": "market",
        "time_in_force": "FOK",
        "quantity": "0.057",
        "price": "43510.67",
        "quantity_cumulative": "0.000",
        "post_only": false,
        "order_list_id": "d8574207d9e3b16a4a5511753eeef175",
        "contingency_type": "allOrNone",
        "created_at": "2021-06-15T17:01:05.092Z",
        "updated_at": "2021-06-15T17:01:05.092Z"
    }
]

OCO request:

curl -X POST \
    -H 'Content-Type: application/json' \
    -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/spot/order/list" \
    -d '{
            "contingency_type": "oneCancelOther",
            "orders": [
                {
                    "client_order_id": "d8574207d9e3b16a4a5511753eeef175",
                    "symbol": "ETHBTC",
                    "side": "buy",
                    "type": "limit",
                    "time_in_force": "GTC",
                    "quantity": "0.063",
                    "price": "0.046016",
                    "post_only": false
                },
                {
                    "client_order_id": "a53406ea49e160c63b620ca21e9fb634",
                    "symbol": "ETHBTC",
                    "side": "sell",
                    "type": "stopMarket",
                    "time_in_force": "GTC",
                    "quantity": "0.063",
                    "stop_price": "0.044050",
                    "post_only": false
                }
            ]
        }'

    import requests
    session = requests.session()
    session.auth = ("apiKey", "secretKey")
    headers = {'Content-Type': 'application/json'}
    orderData = '{"contingency_type": "oneCancelOther", "orders": [{"client_order_id": "d8574207d9e3b16a4a5511753eeef175", "symbol": "ETHBTC", "side": "buy", "type": "limit", "time_in_force": "GTC", "quantity": "0.063", "price": "0.046016", "post_only": false}, {"client_order_id": "a53406ea49e160c63b620ca21e9fb634", "symbol": "ETHBTC", "side": "sell", "type": "stopMarket", "time_in_force": "GTC", "quantity": "0.063", "stop_price": "0.044050", "post_only": false}]}'
    r = session.post('https://api.crosstower.com/api/3/spot/order/list', data = orderData, headers=headers)

    print(r.json())

OCO response:

[
    {
        "id": 840450210,
        "client_order_id": "d8574207d9e3b16a4a5511753eeef175",
        "symbol": "ETHBTC",
        "side": "buy",
        "status": "new",
        "type": "limit",
        "time_in_force": "GTC",
        "quantity": "0.063",
        "price": "0.046016",
        "quantity_cumulative": "0.063",
        "post_only": false,
        "order_list_id": "d8574207d9e3b16a4a5511753eeef175",
        "contingency_type": "oneCancelOther",
        "created_at": "2021-06-15T17:01:05.092Z",
        "updated_at": "2021-06-15T17:01:05.092Z"
    },
    {
        "id": 840450211,
        "client_order_id": "a53406ea49e160c63b620ca21e9fb634",
        "symbol": "ETHBTC",
        "side": "sell",
        "status": "suspended",
        "type": "stopMarket",
        "time_in_force": "GTC",
        "quantity": "0.063",
        "price": "0.044016",
        "quantity_cumulative": "0.057",
        "post_only": false,
        "order_list_id": "d8574207d9e3b16a4a5511753eeef175",
        "contingency_type": "oneCancelOther",
        "created_at": "2021-06-15T17:01:05.092Z",
        "updated_at": "2021-06-15T17:01:05.092Z"
    }
]

OTO request:

curl -X POST \
    -H 'Content-Type: application/json' \
    -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/spot/order/list" \
    -d '{
            "contingency_type": "oneTriggerOther",
            "orders": [
                {
                    "client_order_id": "d8574207d9e3b16a4a5511753eeef175",
                    "symbol": "ETHBTC",
                    "side": "buy",
                    "type": "limit",
                    "time_in_force": "GTC",
                    "quantity": "0.063",
                    "price": "0.046016",
                    "post_only": false
                },
                {
                    "client_order_id": "a53406ea49e160c63b620ca21e9fb634",
                    "symbol": "ETHBTC",
                    "side": "sell",
                    "type": "stopMarket",
                    "time_in_force": "GTC",
                    "quantity": "0.063",
                    "stop_price": "0.044050",
                    "post_only": false
                }
            ]
        }'

    import requests
    session = requests.session()
    session.auth = ("apiKey", "secretKey")
    headers = {'Content-Type': 'application/json'}
    orderData = '{"contingency_type": "oneTriggerOther", "orders": [{"client_order_id": "d8574207d9e3b16a4a5511753eeef175", "symbol": "ETHBTC", "side": "buy", "type": "limit", "time_in_force": "GTC", "quantity": "0.063", "price": "0.046016", "post_only": false}, {"client_order_id": "a53406ea49e160c63b620ca21e9fb634", "symbol": "ETHBTC", "side": "sell", "type": "stopMarket", "time_in_force": "GTC", "quantity": "0.063", "stop_price": "0.044050", "post_only": false}]}'
    r = session.post('https://api.crosstower.com/api/3/spot/order/list', data = orderData, headers=headers)

    print(r.json())

OTO response:

[
    {
        "id": 840450210,
        "client_order_id": "d8574207d9e3b16a4a5511753eeef175",
        "symbol": "ETHBTC",
        "side": "buy",
        "status": "new",
        "type": "limit",
        "time_in_force": "GTC",
        "quantity": "0.063",
        "price": "0.046016",
        "quantity_cumulative": "0.063",
        "post_only": false,
        "order_list_id": "d8574207d9e3b16a4a5511753eeef175",
        "contingency_type": "oneTriggerOther",
        "created_at": "2021-06-15T17:01:05.092Z",
        "updated_at": "2021-06-15T17:01:05.092Z"
    },
    {
        "id": 840450211,
        "client_order_id": "a53406ea49e160c63b620ca21e9fb634",
        "symbol": "ETHBTC",
        "side": "sell",
        "status": "suspended",
        "type": "stopMarket",
        "time_in_force": "GTC",
        "quantity": "0.063",
        "price": "0.044016",
        "quantity_cumulative": "0.057",
        "post_only": false,
        "order_list_id": "d8574207d9e3b16a4a5511753eeef175",
        "contingency_type": "oneTriggerOther",
        "created_at": "2021-06-15T17:01:05.092Z",
        "updated_at": "2021-06-15T17:01:05.092Z"
    }
]

OTOCO request:

curl -X POST \
    -H 'Content-Type: application/json' \
    -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/spot/order/list" \
    -d '{
            "order_list_id": "d8574207d9e3b16a4a5511753eeef175",
            "contingency_type": "oneTriggerOneCancelOther",
            "orders": [
                {
                    "client_order_id": "d8574207d9e3b16a4a5511753eeef175",
                    "symbol": "ETHBTC",
                    "side": "buy",
                    "type": "limit",
                    "time_in_force": "GTC",
                    "quantity": "0.063",
                    "price": "0.046016",
                    "post_only": false
                },
                {
                    "client_order_id": "2723cdfba2d609b621d5d055e3ef9be2",
                    "symbol": "ETHBTC",
                    "side": "sell",
                    "type": "limit",
                    "time_in_force": "GTC",
                    "quantity": "0.063",
                    "price": "0.050000",
                    "post_only": false
                },
                {
                    "client_order_id": "a53406ea49e160c63b620ca21e9fb634",
                    "symbol": "ETHBTC",
                    "side": "sell",
                    "type": "stopMarket",
                    "time_in_force": "GTC",
                    "quantity": "0.063",
                    "stop_price": "0.044050",
                    "post_only": false
                }
            ]
        }'

    import requests
    session = requests.session()
    session.auth = ("apiKey", "secretKey")
    headers = {'Content-Type': 'application/json'}
    orderData = '{"contingency_type": "oneTriggerOneCancelOther", "orders": [{"client_order_id": "d8574207d9e3b16a4a5511753eeef175", "symbol": "ETHBTC", "side": "buy", "type": "limit", "time_in_force": "GTC", "quantity": "0.063", "price": "0.046016", "post_only": false}, {"client_order_id": "2723cdfba2d609b621d5d055e3ef9be2", "symbol": "ETHBTC", "side": "sell", "type": "limit", "time_in_force": "GTC", "quantity": "0.063", "price": "0.050000", "post_only": false}, {"client_order_id": "a53406ea49e160c63b620ca21e9fb634", "symbol": "ETHBTC", "side": "sell", "type": "stopMarket", "time_in_force": "GTC", "quantity": "0.063", "stop_price": "0.044050", "post_only": false}]}'
    r = session.post('https://api.crosstower.com/api/3/spot/order/list', data = orderData, headers=headers)

    print(r.json())

OTOCO response:

[
    {
        "id": 840450210,
        "client_order_id": "d8574207d9e3b16a4a5511753eeef175",
        "symbol": "ETHBTC",
        "side": "buy",
        "status": "new",
        "type": "limit",
        "time_in_force": "GTC",
        "quantity": "0.063",
        "price": "0.046016",
        "quantity_cumulative": "0.000",
        "post_only": false,
        "order_list_id": "d8574207d9e3b16a4a5511753eeef175",
        "contingency_type": "oneTriggerOneCancelOther",
        "created_at": "2021-06-15T17:01:05.092Z",
        "updated_at": "2021-06-15T17:01:05.092Z"
    },
    {
        "id": 840450211,
        "client_order_id": "2723cdfba2d609b621d5d055e3ef9be2",
        "symbol": "ETHBTC",
        "side": "sell",
        "status": "new",
        "type": "limit",
        "time_in_force": "GTC",
        "quantity": "0.063",
        "price": "0.050000",
        "quantity_cumulative": "0.000",
        "post_only": false,
        "inactive": true,
        "order_list_id": "d8574207d9e3b16a4a5511753eeef175",
        "contingency_type": "oneTriggerOneCancelOther",
        "created_at": "2021-06-15T17:01:05.092Z",
        "updated_at": "2021-06-15T17:01:05.092Z"
    },
    {
        "id": 840450211,
        "client_order_id": "a53406ea49e160c63b620ca21e9fb634",
        "symbol": "ETHBTC",
        "side": "sell",
        "status": "suspended",
        "type": "stopMarket",
        "time_in_force": "GTC",
        "quantity": "0.063",
        "stop_price": "0.044050",
        "price": "0.044016",
        "quantity_cumulative": "0.000",
        "post_only": false,
        "inactive": true,
        "order_list_id": "d8574207d9e3b16a4a5511753eeef175",
        "contingency_type": "oneTriggerOneCancelOther",
        "created_at": "2021-06-15T17:01:05.092Z",
        "updated_at": "2021-06-15T17:01:05.092Z"
    }
]

Error response example:

{
    "error": {
        "code": 20001,
        "message": "Insufficient funds",
        "description": "Check that the funds are sufficient, given commissions"
    }
}

POST /api/3/spot/order/list

Creates a new spot order list.

Requires the "Place/cancel orders" API key Access Right.

Parameters:

Name	Type	Description
order_list_id	String	Order list identifier. If omitted, it will be generated by the system upon order list creation. Must be equal to client_order_id of the first order in the request.
contingency_type	String	Order list type. Accepted values: allOrNone (AON) — all orders in the set should be executed within a single transaction or become expired otherwise; oneCancelOther (OCO) — all orders in the set should be canceled if one of them was executed; oneTriggerOther (OTO) — execution of the first (primary) order on the list activates other (secondary) orders as independent of each other; oneTriggerOneCancelOther (OTOCO) — the execution of the first (primary) order on the list activates the other (secondary) orders as an OCO order list.
orders	Array of Order	Orders in the list. There must be 2 or 3 orders for allOrNone/oneCancelOther/oneTriggerOther and 3 — for oneTriggerOneCancelOther. Placing any other number of orders will result in an error.

Order model consists of:

Name	Type	Description
client_order_id	String	Optional. Must be different from the identifiers of other orders in the list. If omitted, it will be generated by the system upon order list creation. Uniqueness must be guaranteed until the last order with the same client_order_id becomes inactive (canceled, expired, or fully executed) and some time after that.
symbol	String	Symbol code. For an allOrNone order list, symbol code must be unique for each order in the list. For an oneTriggerOneCancelOther order list, symbol code must be the same for all orders in the list (placing orders in different order books is not supported).
side	String	Trade side. Accepted values: sell, buy
type	String	Optional. Order type. Accepted values: for allOrNone — limit, market; for oneCancelOther (and secondary orders in oneTriggerOneCancelOther) — limit, stopLimit, stopMarket, takeProfitLimit, takeProfitMarket; for oneTriggerOneCancelOther — limit, market, stopLimit, stopMarket, takeProfitLimit, takeProfitMarket. Default value: limit
time_in_force	String	Optional (required for allOrNone). Time in Force instruction. Accepted values: for allOrNone — FOK; for oneCancelOther (and secondary orders in oneTriggerOneCancelOther) — GTC, IOC (except limit orders), FOK (except limit orders), Day, GTD; for oneTriggerOneCancelOther — GTC, IOC, FOK, Day, GTD.
quantity	Number	Order quantity.
price	Number	Order price. Required if type is limit, stopLimit, or takeProfitLimit.
stop_price	Number	The price level that triggers order activation. Required if type is stopLimit, stopMarket, takeProfitLimit, or takeProfitMarket.
expire_time	DateTime	Date of order expiration. Required if time_in_force is GTD.
strict_validate	Boolean	Price and quantity will be checked for incrementation within the symbol’s tick size and quantity step. See the symbol's tick_size and quantity_increment.
post_only	Boolean	Optional. If a post-only order causes a match with a pre-existing order as a taker, then the order will expire.
take_rate	Number	Optional. Liquidity taker fee, a fraction of order volume, such as 0.001 (for 0.1% fee). Can only increase the fee. Used for fee markup.
make_rate	Number	Optional. Liquidity provider fee, a fraction of order volume, such as 0.001 (for 0.1% fee). Can only increase the fee. Used for fee markup.

Response: array of spot orders

Replace Spot Order

curl -X PATCH -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/spot/order/d8574207d9e3b16a4a5511753eeef174" \
    -d "quantity=0.063&price=0.046016&new_client_order_id=d8574207d9e3b16a4a5511753eeef175"

    import requests
    session = requests.session()
    session.auth = ("apiKey", "secretKey")
    orderData = {'quantity': '0.063', 'price': '0.046016', 'new_client_order_id': 'd8574207d9e3b16a4a5511753eeef175'}
    r = session.patch('https://api.crosstower.com/api/3/spot/order/d8574207d9e3b16a4a5511753eeef174', data = orderData)
    print(r.json())

Response:

{
    "id": 0,
    "client_order_id": "d8574207d9e3b16a4a5511753eeef175",
    "symbol": "ETHBTC",
    "side": "sell",
    "status": "new",
    "type": "limit",
    "time_in_force": "GTC",
    "quantity": "0.063",
    "price": "0.046016",
    "quantity_cumulative": "0.000",
    "post_only": false,
    "created_at": "2021-06-15T17:01:05.092Z",
    "updated_at": "2021-06-15T17:01:05.092Z"
}

Error response example:

{
    "error": {
        "code": 20001,
        "message": "Insufficient funds",
        "description": "Check that the funds are sufficient, given commissions"
    }
}

PATCH /api/3/spot/order/{client_order_id}

Replaces a spot order

Requires the "Place/cancel orders" API key Access Right.

Parameters:

Name	Type	Description
new_client_order_id	String	client_order_id for a new order.
quantity	Number	Order quantity.
price	Number	Order price. Required if type is limit, stopLimit, or takeProfitLimit.
strict_validate	Boolean	Price and quantity will be checked for incrementation within the symbol’s tick size and quantity step. See the symbol's tick_size and quantity_increment.

Response: spot order

Cancel All Spot Orders

DELETE /api/3/spot/order

Cancels all active spot orders.

Requires the "Place/cancel orders" API key Access Right.

Parameters:

Name	Type	Description
symbol	String	Optional. Parameter to filter active spot orders by symbol.

Response: array of spot orders

Cancel Spot Order

curl -X DELETE -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/spot/order/d8574207d9e3b16a4a5511753eeef175"

Response:

{
    "id": 0,
    "client_order_id": "d8574207d9e3b16a4a5511753eeef175",
    "symbol": "ETHBTC",
    "side": "sell",
    "status": "canceled",
    "type": "limit",
    "time_in_force": "GTC",
    "quantity": "0.063",
    "price": "0.046016",
    "quantity_cumulative": "0.000",
    "post_only": false,
    "created_at": "2021-06-15T17:01:05.092Z",
    "updated_at": "2021-06-15T17:01:05.092Z"
}

Example of Order not found error response:

{
    "error": {
        "code": 20002,
        "message": "Order not found",
        "description": ""
    }
}

DELETE /api/3/spot/order/{client_order_id}

Cancels a spot order.

Requires the "Place/cancel orders" API key Access Right.

Response: spot order

Get All Trading Commissions

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/spot/fee"

Response:

[
    {
        "symbol": "BTCUSDT",
        "take_rate": "0.001",
        "make_rate": "-0.0001"
    },
    {
        "symbol": "ETHBTC",
        "take_rate": "0.001",
        "make_rate": "-0.0001"
    }
]

GET /api/3/spot/fee

Returns personal trading commission rates for all symbols.

Requires the "Orderbook, History, Trading balance" API key Access Right.

Get Trading Commission

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/spot/fee/ETHBTC"

Response:

{
    "symbol": "ETHBTC",
    "take_rate": "0.001",
    "make_rate": "-0.0001"
}

GET /api/3/spot/fee/{symbol}

Returns personal trading commission rate by symbol.

Requires the "Place/cancel orders" API key Access Right.

Spot Trading History

Spot Orders History

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/spot/history/order?symbol=ETHBTC"

[
    {
        "id": 828680665,
        "client_order_id": "f4307c6e507e49019907c917b6d7a084",
        "symbol": "ETHBTC",
        "side": "sell",
        "status": "partiallyFilled",
        "type": "limit",
        "time_in_force": "GTC",
        "quantity": "13.942",
        "price": "0.011384",
        "price_average": "0.055487",
        "quantity_cumulative": "5.240",
        "created_at": "2021-06-16T14:18:47.321Z",
        "updated_at": "2021-06-19T15:23:54.876Z"
    },
    {
        "id": 828680667,
        "client_order_id": "f4307c6e507e49019907c917b6d7a084",
        "symbol": "ETHBTC",
        "side": "sell",
        "status": "partiallyFilled",
        "type": "limit",
        "time_in_force": "GTC",
        "quantity": "13.942",
        "price": "0.011384",
        "price_average": "0.045000",
        "quantity_cumulative": "5.240",
        "created_at": "2021-06-16T14:18:50.321Z",
        "updated_at": "2021-06-19T15:23:56.876Z"
    }
]

GET /api/3/spot/history/order

Returns all spot orders. Orders without executions are deleted after 24 hours.

Requires the "Orderbook, History, Trading balance" API key Access Right.

All parameters are optional.

Parameters:

Name	Type	Description
client_order_id	String	If specified, other parameters will be ignored, including limit and offset.
symbol	String	Comma-separated symbol codes.
sort	String	Sort direction. Accepted values: DESC, ASC Default value: DESC
by	String	Filter type. Accepted values: timestamp, id Default value: id
from	DateTime	Interval initial value.
till	DateTime	Interval end value.
limit	Number	Default value: 100 Maximum value: 1000
offset	Number	Default value: 0 Maximum value: 100000

Response:

Name	Type	Description
id	Number	Unique order identifier as assigned by exchange.
client_order_id	String	Unique order identifier as assigned by the trader. The order history may list several orders with the same client_order_id.
symbol	String	Symbol code.
side	String	Trade side. Possible values: sell, buy
status	String	Order state. Possible values: new — an order is placed in the order book. suspended — a stopLimit, stopMarket, takeProfitLimit or takeProfitMarket order is parked until it meets the conditions for placement in the order book. partiallyFilled — an order is executed, but a part of its quantity is not filled yet. filled — order quantity filled completely. canceled — an order is canceled. It can either be done by a user through a cancel/replace request or by the system under specific circumstances. expired — an order is deactivated after it no longer satisfies Time in Force (IOC, FOK) or Post Only requirements.
type	String	Order type. Possible values: limit, market, stopLimit, stopMarket, takeProfitLimit, takeProfitMarket
time_in_force	String	Time in Force is a special instruction used when placing an order to indicate how long it will remain active before it is executed or expired. GTC — "Good-Till-Canceled" order won't be closed until it is filled. IOC — "Immediate-Or-Cancel" order must be executed immediately. Any part of an IOC order that cannot be filled immediately will be canceled. FOK — "Fill-Or-Kill" order must be executed immediately and completely or not executed at all. Day — keeps the order active until the end of the trading day (23:59 UTC+0). GTD — "Good-Till-Date" order may remain active until the time specified in expire_time.
quantity	Number	Order quantity.
quantity_cumulative	Number	Executed order quantity.
price	Number	Order price.
price_average	Number	Average price of executed order quantity.
expire_time	DateTime	Date of order expiration. Specified if time_in_force is GTD.
stop_price	Number	The price level that triggers order activation. Specified if type is stopLimit, stopMarket, takeProfitLimit, or takeProfitMarket.
created_at	DateTime	Date of order's creation.
updated_at	DateTime	Date of order's last update.
order_list_id	String	Optional. Order list identifier.
contingency_type	String	Optional. Order list type. Possible values: allOrNone, oneCancelOther, oneTriggerOther, oneTriggerOneCancelOther

Spot Trades History

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/spot/history/trade?symbol=ETHBTC"

[
    {
        "id": 9535486,
        "order_id": 816088377,
        "client_order_id": "f8dbaab336d44d5ba3ff578098a68454",
        "symbol": "ETHBTC",
        "side": "sell",
        "quantity": "0.061",
        "price": "0.045487",
        "fee": "0.000002775",
        "timestamp": "2021-06-17T12:32:57.848Z",
        "taker": true
    },
    {
        "id": 9535437,
        "order_id": 816088021,
        "client_order_id": "27b9bfc068b44194b1f453c7af511ed6",
        "symbol": "ETHBTC",
        "side": "buy",
        "quantity": "0.038",
        "price": "0.046000",
        "fee": "-0.000000174",
        "timestamp": "2021-06-17T12:30:57.848Z",
        "taker": true
    }
]

GET /api/3/spot/history/trade

Returns the user's spot trading history.

Requires the "Orderbook, History, Trading balance" API key Access Right.

All parameters are optional.

Parameters:

Name	Type	Description
order_id	String	Unique order identifier as assigned by exchange.
symbol	String	Comma-separated symbol codes.
sort	String	Sort direction. Accepted values: DESC, ASC Default value: DESC
by	String	Filter type. Accepted values: timestamp, id Default value: id
from	DateTime or Number	Interval initial value. If sorting by timestamp is used, then DateTime; otherwise — Number.
till	DateTime or Number	Interval end value. If sorting by timestamp is used, then DateTime; otherwise — Number.
limit	Number	Default value: 100 Maximum value: 1000
offset	Number	Default value: 0 Maximum value: 100000

Response:

Name	Type	Description
id	Number	Trade unique identifier as assigned by exchange.
order_id	Number	Unique order identifier as assigned by exchange.
client_order_id	String	Unique order identifier as assigned by the trader. The order history may list several orders with the same client_order_id.
symbol	String	Symbol code.
side	String	Trade side. Possible values: sell, buy
quantity	Number	Trade quantity.
price	Number	Trade price.
fee	Number	Trade commission. Can be negative ("rebate" — reward paid to the trader). See fee currency in the symbol config.
timestamp	DateTime	Trade timestamp.
taker	Boolean	Liquidity indicator.

Wallet Management

Wallet Balance

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/balance"

Response. All currencies:

[
    {
        "currency":"BTC",
        "available":"0.00005821",
        "reserved":"0.00001"
    },
    {
        "currency":"USDT",
        "available":"0.01",
        "reserved":"0"
    }
]

Response. One currency:

{
    "available":"0.00005821",
    "reserved":"0.00001"
}

GET /api/3/wallet/balance GET /api/3/wallet/balance/{currency}

Returns the user's wallet balances except zero balances.

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
currency	String	Optional. Currency filter.

Response:

Name	Type	Description
currency	String	Currency code.
available	Number	Amount available for withdrawals or transfers to the trading account.
reserved	Number	Amount reserved for incomplete transactions (including the fee).

Get Deposit Crypto Address

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/crypto/address?currency=BTC"

[
    {
        "currency":"BTC",
        "address":"3E8WKmTJzaTsBc4kvuEJVjPNtak6vQRcRv"
    }
]

GET /api/3/wallet/crypto/address

Get current addresses. Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
currency	String	Optional. Currency code.
network_code	String	Optional. Network code.

Response:

Name	Type	Description
currency	String	Optional. Currency code.
address	String	Address for deposits.
payment_id	String	Optional. An additional identifier required for specific currencies (for example, "Memo").
public_key	String	Optional. An additional identifier required for specific currencies.
network_code	String	Optional. Network code.

Generate Deposit Crypto Address

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/crypto/address" \
    -d "currency=BTC"

{
    "currency":"BTC",
    "address":"3E8WKmTJzaTsBc4kvuEJVjPNtak6vQRcRv"
}

POST /api/3/wallet/crypto/address

Creates a new deposit address. Existing addresses may still receive funds. For some tokens (e.g., Ethereum tokens), a single address is generated per base currency with additional identifiers which differ for each address: payment_id or public_key. As a result, generating a new address for such token will change the current address for an entire base currency accordingly.

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
currency	String	Currency code.
network_code	String	Optional. Network code.

Response:

Name	Type	Description
currency	String	Optional. Currency code.
address	String	Address for deposits.
payment_id	String	Optional. An additional identifier required for specific currencies (for example, "Memo").
public_key	String	Optional. An additional identifier required for specific currencies.
network_code	String	Optional. Network code.

Last 10 Deposit Crypto Addresses

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/crypto/address/recent-deposit?currency=BTC"

[
    {
        "currency":"BTC",
        "address":"3E8WKmTJzaTsBc4kvuEJVjPNtak6vQRcRv"
    }
]

GET /api/3/wallet/crypto/address/recent-deposit

Returns the last 10 unique addresses used for deposits (by currency).

Requires the "Payment information" API key Access Right.

Name	Type	Description
currency	String	Currency code.
network_code	String	Optional. Network code.

Response:

Name	Type	Description
currency	String	Optional. Currency code.
address	String	Address for deposits.
payment_id	String	Optional. An additional identifier required for specific currencies (for example, "Memo").
public_key	String	Optional. An additional identifier required for specific currencies.
network_code	String	Optional. Network code.

Last 10 Withdrawal Crypto Addresses

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/crypto/address/recent-withdraw?currency=BTC"

[
    {
        "currency":"BTC",
        "address":"3E8WKmTJzaTsBc4kvuEJVjPNtak6vQRcRv"
    }
]

GET /api/3/wallet/crypto/address/recent-withdraw

Returns the last 10 unique addresses used for withdrawals (by currency).

Requires the "Payment information" API key Access Right.

Name	Type	Description
currency	String	Currency code.
network_code	String	Optional. Network code.

Response:

Name	Type	Description
currency	String	Optional. Currency code.
address	String	Address for deposits.
payment_id	String	Optional. An additional identifier required for specific currencies (for example, "Memo").
public_key	String	Optional. An additional identifier required for specific currencies.
network_code	String	Optional. Network code.

Withdraw Crypto

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/crypto/withdraw" \
    -d "currency=BTC&amount=0.001&address=3E8WKmTJzaTsBc4kvuEJVjPNtak6vQRcRv&auto_commit=false"

Success response:

{
    "id": "d2ce578f-647d-4fa0-b1aa-4a27e5ee597b"
}

Validation error:

{
    "error": {
        "code": 10001,
        "message": "Validation error",
        "description": "Invalid currency: fiat"
    }
}

Invalid currency error:

{
    "error": {
        "code": 2002,
        "message": "Currency not found",
        "description": "The requested currency can't found. Requested: USD"
    }
}

Insufficient funds error:

{
    "error": {
        "code": 20001,
        "message": "Insufficient funds",
        "description": "Check that the funds are sufficient, given commissions"
    }
}

Limits exceeded error:

{
    "error": {
        "code": 20003,
        "message": "Limit exceeded",
        "description": "Withdrawal limit exceeded"
    }
}

POST /api/3/wallet/crypto/withdraw

Withdraw crypto. The transaction gets the status CREATED right after the creation.

Requires the "Withdraw cryptocurrencies" API key Access Right.

Please take note that changing security settings affects withdrawals:

• It is impossible to withdraw funds without enabling the two-factor authentication (2FA).
• Password reset blocks withdrawals for 72 hours (3 days).
• 2FA reset blocks withdrawals for 96 hours (4 days).
• Each time a new address is added to the whitelist, it takes 48 hours before that address becomes active for withdrawal.

Parameters:

Name	Type	Description
currency	String	Currency code.
network_code	String	Optional. Network code.
amount	Number	The amount that will be sent to the specified address.
address	String	Address identifier.
payment_id	String	Optional. An additional identifier required for specific currencies (for example, "Memo").
include_fee	Boolean	Default value: false If true is set, then total spent value will include fees.
auto_commit	Boolean	Default value: true If false is set, then you should commit or rollback a transaction in an hour. Used in two-phase commit schema.
use_offchain	String	Whether the withdrawal may be committed offchain. Accepted values: never, optionally, required Default value: never
public_comment	String	Optional. Maximum length is 255.

Response:

Name	Type	Description
id	String	Transaction unique identifier.

Convert Between Currencies

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/convert" \
    -d "from_currency=USDT20&to_currency=USDT&amount=0.01"

{
    "result": [
        "d2ce578f-647d-4fa0-b1aa-4a27e5ee597b",
        "d2ce57hf-6g7d-4ka0-b8aa-4a27e5ee5i7b"
    ]
}

POST /api/3/wallet/convert

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
from_currency	String	Currency code.
to_currency	String	Currency code.
amount	Number	The amount that will be sent to the specified address.

Response:

Name	Type	Description
result	Array	Transaction unique identifiers as assigned by exchange.

Withdraw Crypto Commit or Rollback

curl -X PUT -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/crypto/withdraw/d2ce578f-647d-4fa0-b1aa-4a27e5ee597b"

{
    "result": true
}

PUT /api/3/wallet/crypto/withdraw/{id}

Commit a withdrawal. The transaction gets the status PENDING.

DELETE /api/3/wallet/crypto/withdraw/{id}

Roll back a withdrawal.

If the auto_commit parameter has been set to false while sending the request for withdrawing crypto, the withdrawal needs to be committed or rolled back one hour after the request. Use PUT /api/3/wallet/crypto/withdraw/{id} to approve the withdrawal operation, or DELETE /api/3/wallet/crypto/withdraw/{id} to discard it. The id parameter must contain the unique transaction identifier value received as a result of the POST /api/3/wallet/crypto/withdraw request.

Requires the "Withdraw cryptocurrencies" API key Access Right.

Parameters:

Name	Type	Description
id	String	Transaction unique identifier returned to a POST /api/3/wallet/crypto/withdraw request.

Both methods are idempotent.

Response:

Name	Type	Description
result	Boolean	true if the request is completed.

Check If Crypto Address Belongs to Current Account

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/crypto/address/check-mine?address=1BvBMSEYstWetqTFn5Au4m4GFg7xJaNVN2"

{
    "result": true
}

GET /api/3/wallet/crypto/address/check-mine

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
address	String	Address.

Response:

Name	Type	Description
result	Boolean	true if the address belongs to the current account.

Transfer Between Wallet and Exchange

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/transfer" \
    -d "currency=eth&amount=0.01&source=wallet&destination=spot"

[
    "d2ce578f-647d-4fa0-b1aa-4a27e5ee597b"
]

POST /api/3/wallet/transfer

Transfers funds from the wallet to the exchange account to make them available for trading.

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
currency	String	Currency code.
amount	Number	The amount that will be transferred between accounts.
source	String	Transfer source account type. Accepted values: wallet, spot. Must not be the same as destination.
destination	String	Transfer destination accounts type. Accepted values: wallet, spot. Must not be the same as source.

Response:

Name	Type	Description
—	Array of String	Transaction unique identifier as assigned by exchange.

Transfer Money to Another User

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/internal/withdraw" \
    -d "by=email&identifier=user@example.com&currency=BTC&amount=0.001"

{
    "result": "fd3088da-31a6-428a-b9b6-c482673ff0f2"
}

POST /api/3/wallet/internal/withdraw

Requires the "Withdraw cryptocurrencies" API key Access Right.

Parameters:

Name	Type	Description
currency	String	Currency code.
amount	Number	The amount that will be transferred.
by	String	Type of the beneficiary identifier specified below. Accepted values: email, username, external_id
identifier	String	Beneficiary identifier value. Either email, external identifier, or username.
public_comment	String	Optional text comment for the external usage. Can be up to 255 characters long, excluding the following characters: &, ', <, >, "

Response:

Name	Type	Description
result	String	Transaction unique identifier as assigned by exchange.

Get Transactions History

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/transactions?currencies=ETH,BTC&sort=DESC"

[
  {
    "id": 50844835,
    "created_at": "2021-06-22T21:03:04.111Z",
    "updated_at": "2021-06-22T21:04:41.487Z",
    "status": "SUCCESS",
    "type": "WITHDRAW",
    "subtype": "BLOCKCHAIN",
    "native": {
        "tx_id": "27fa7f14-ca49-42fd-834a-4ce630d069d2",
        "index": 1071885589,
        "currency": "ETH",
        "amount": "0.01042",
        "fee": "0.00958",
        "hash": "0xfb0ba568213d11230cd34d62fddd1cc1fe11fdc173l4f2007b0e47a06ad73d20",
        "address": "0xd959463c3fcb222124bb7bb642d6a6573a6c5aba",
        "confirmations": 20
    }
  },
  {
    "id": 36896428,
    "created_at": "2020-11-12T10:27:26.135Z",
    "updated_at": "2020-11-12T10:42:29.065Z",
    "status": "SUCCESS",
    "type": "DEPOSIT",
    "subtype": "BLOCKCHAIN",
    "native": {
        "tx_id": "a271ad64-5f34-4115-a63e-1cb5bbe4f67e",
        "index": 429625504,
        "currency": "BTC",
        "amount": "0.04836614",
        "hash": "4d7ae7c9d6fe84405ae167b3f0beacx8c68eb5a9d5189bckeb65d5e306427oe6",
        "address": "3E8WKmTJzaTsBc4kvuEJVjPNtak6vQRcRv",
        "confirmations": 2,
        "senders": [
          "0xd959463c3fcb0d2124bb7ac642d6a6573a6c5aba"
        ]
    }
  }
]

GET /api/3/wallet/transactions

Returns all transactions or a number of transactions by identifiers.

Requires the "Payment information" API key Access Right.

All parameters are optional.

Parameters:

Name	Type	Description
from	DateTime	Interval initial value (inclusive).
till	DateTime	Interval end value (inclusive).
types	String	Comma-separated transaction types.
subtypes	String	Comma-separated transaction subtypes.
statuses	String	Comma-separated transaction statuses. Accepted values: CREATED, PENDING, FAILED, SUCCESS, ROLLED_BACK
currencies	String	Comma-separated currency codes.
networks	String	Comma-separated network codes.
id_from	Number	Index interval initial value. Accepted values: 0 or greater
id_till	Number	Index interval end value. Accepted values: 0 or greater
tx_ids	String	Comma-separated transaction identifiers.
order_by	String	Defines sorting type. Accepted values: created_at, id, updated_at Default value: created_at
sort	String	Sort direction. Accepted values: DESC, ASC Default value: DESC
limit	Number	Default value: 100 Maximum value: 1000
offset	Number	Default value: 0 Maximum value: 100000

GET /api/3/wallet/transactions/{tx_id}

Returns transaction by identifier.

Requires the "Payment information" API key Access Right.

Response:

Name	Type	Description
id	Number	Transaction unique identifier as assigned by exchange.
status	String	Transaction status. Possible values: CREATED, PENDING, FAILED, SUCCESS, ROLLED_BACK
type	String	Transaction type.
subtype	String	Transaction subtype.
created_at	DateTime	Date of transaction creation.
updated_at	DateTime	Date of transaction last update.
native	Native	Optional. Transaction native attributes as assigned by the platform.
primetrust	PrimeTrust	Optional. Additional attributes assigned to Prime Trust transactions.
meta	Meta	Optional. Additional attributes assigned to certain types of transactions.
network_code	String	Optional. Network code.

Native model consists of:

Name	Type	Description
tx_id	String	Transaction unique identifier as assigned by exchange.
index	Number	Internal index value that represents when the entry was updated.
currency	String	Currency code.
amount	Number	Amount of funds.
fee	Number	Payment commission value.
address	String	Address identifier.
payment_id	String	Optional. An additional identifier required for specific currencies (for example, "Memo").
hash	String	Transaction hash.
offchain_id	String	Transaction identifier of external system.
confirmations	Number	Current count of confirmations for transaction in network.
public_comment	String	Optional.
error_code	String	Payout error reason. Possible values: INVALID_ADDRESS, INVALID_PAYMENT_ID, BAD_PRECISION
senders	Array of String	Senders for this payin transaction. Displayed only for deposits.

PrimeTrust model consists of:

Name	Type	Description
deposit	Deposit	Optional. Transaction details as of a deposit.
withdrawal	Withdrawal	Optional. Transaction details as of a withdrawal.
transfer	Transfer	Optional. Transaction details as of a transfer.

Deposit and Withdrawal models consist of:

Name	Type	Description
id	Number	Payment identifier.
tx_id	String	Transactions identifier.
provider_id	String	Provider identifier.
method_id	String	Payment method identifier.
method_type	String	Method type. Possible values: ACH, CREDIT_CARD, WIRE
currency	String	Currency code.
amount	String	Amount of funds.
balance	String	Prime Trust balance.

Transfer model consists of:

Name	Type	Description
id	Number	Payment identifier.
tx_id	String	Transactions identifier.
provider_id	String	Provider identifier.
currency	String	Currency code.
amount	String	Amount of funds.
balance	String	Prime Trust balance.

Meta model consists of:

Name	Type	Description
fiat_to_crypto	Fiat to Crypto	Optional. Attributes of a fiat deposit, or an order (for subtype equal to FIAT).

Fiat to Crypto model consists of:

Name	Type	Description
id	Number	Order identifier.
provider_name	String	Optional. Provider name.
order_type	String	Order type. Possible values: buy
source_currency	String	Source currency code.
target_currency	String	Destination currency code.
wallet_address	String	Wallet address for the incoming payment.
tx_hash	String	Transaction hash.
target_amount	String	Amount in the target currency.
source_amount	String	Amount in the source currency.
status	String	Order status. Possible values: INITIAL—the order is created in the system but will possibly never be submitted by the user; IN_PROGRESS—the order is pending; COMPLETED—the order was successfully processed at the provider's end; FAILED—the order failed at the provider's end; EXPIRED—the order expired after not receiving an incoming fiat payment; UNKNOWN—no status obtained at the provider's end.
created_at	DateTime	Order creation date.
updated_at	DateTime	Optional. Date of order last update.
deleted_at	DateTime	Optional. Date of order deletion.
payment_method_type	String	Optional. Payment system alias.

type field may have the following values:

Type	Description
DEPOSIT	Deposit to a wallet address.
WITHDRAW	Withdrawal to another crypto address.
TRANSFER	Transfer of funds between wallet and trading accounts.
SWAP	Exchange funds between different wallets.
PRIMETRUST_DEPOSIT	Fiat provider deposit.
PRIMETRUST_WITHDRAWAL	Fiat provider withdrawal.
PRIMETRUST_TRANSFER	Fiat provider transfer.

subtype field may have the following values:

Type	Subtype	Description
DEPOSIT, WITHDRAW, PRIMETRUST_DEPOSIT, PRIMETRUST_WITHDRAWAL	UNCLASSIFIED	Deposit or withdrawal of fiat or crypto.
DEPOSIT, WITHDRAW	BLOCKCHAIN	Deposit or withdrawal of crypto committed to the Blockchain.
DEPOSIT	AFFILIATE	Referral's reward payment.
DEPOSIT	BUY_CRYPTO	Bying crypto with fiat.
DEPOSIT, WITHDRAW	OFFCHAIN	Deposit or withdrawal of crypto offchain.
DEPOSIT, WITHDRAW	FIAT	Fiat deposit or withdrawal.
DEPOSIT, WITHDRAW	SUB_ACCOUNT	Transfer between subaccounts.
TRANSFER	WALLET_TO_SPOT	Transfer from a wallet to a spot trading account.
TRANSFER	SPOT_TO_WALLET	Transfer from a futures trading account to a wallet.
SWAP	CHAIN_SWITCH_FROM	Transferring funds from an original wallet during a chain swap.
SWAP	CHAIN_SWITCH_TO	Transferring funds to a target wallet during a chain swap.
PRIMETRUST_TRANSFER	PRIMETRUST_TO_SPOT	Transfer from a spot trading account to a fiat provider account.
PRIMETRUST_TRANSFER	SPOT_TO_PRIMETRUST	Transfer from a fiat provider account to a spot trading account.

status field may have the following values:

Name	Description
CREATED	The transaction has been created and needs to be approved. For withdrawals, the status means that the transaction has been created but not committed. It remains in this status until manually validated or moved to a blockchain.
PENDING	The transaction has been created and is queued until the fees are paid and it can be processed further. Also, for withdrawals and deposits, the status means that blockchain confirmations have not yet been gathered.
FAILED	The transaction could not be committed.
ROLLED_BACK	The transaction has been canceled.
SUCCESS	The transaction has been approved and fully processed.

Check If Offchain is Available

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/crypto/check-offchain-available" \
    -d "currency=ETH&address=0xfaEF4bE10dDF50B68c220c9ab19381e20B8EEB2B"

{
    "result": true
}

POST /api/3/wallet/crypto/check-offchain-available

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
currency	String	Currency code.
address	String	Address identifier.
payment_id	String	Optional. An additional identifier required for specific currencies (for example, "Memo").

Response:

Name	Type	Description
result	String	true if an offchain transaction is available to the specified address.

Estimate Withdrawal Fee

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/crypto/fee/estimate?currency=BTC&amount=0.01"

{
    "fee": "0.000625"
}

GET /api/3/wallet/crypto/fee/estimate

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
currency	String	Currency code.
amount	Number	The amount that will be withdrawn.
network_code	String	Optional. Network code.

Response:

Name	Type	Description
fee	String	Estimated withdrawal fee considering user's personal settings. The fee value is guaranteed not to change until the transaction is committed.

Get Amount Locks

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/amount-locks?currency=BTC"

[
    {
        "id": 1,
        "currency": "BTC",
        "amount": "12.023",
        "date_end": "",
        "description": "default",
        "canceled": false,
        "canceled_at": null,
        "cancel_description": null,
        "created_at": "2021-07-29T12:07:09.883538Z"
    }
]

GET /api/3/wallet/amount-locks

Returns a list of amount locks.

Amount locks allow to set the minimum user's balance to determine their solvency. The locked amount is not displayed in user's balances.

Amount locks are not tied to a currency. All locks in total affect the ability to withdraw the balance in any currency.

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
currency	String	Optional. Currency code.
active	Boolean	Optional. Value showing whether the lock is active.
limit	Number	Default value: 100 Accepted range: 0 – 1000
offset	Number	Optional Default value: 0 Minimum value: 0

Response:

Name	Type	Description
id	Number	Lock identifier.
currency	String	Currency code.
amount	String	Reserved amount.
date_end	DateTime	The date and time of the lock expiration.
description	String	Lock text description.
canceled	Boolean	Value showing whether the lock was canceled.
canceled_at	DateTime	The date and time at which the the lock was canceled.
cancel_description	String	Text description on cancelation.
created_at	DateTime	The date and time of the lock was created.

Prime Trust

Get Providers

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/external/fiat/providers"

[
  {
    "id": 1,
    "name": "providerName"
  }
]

GET /api/3/wallet/external/fiat/providers

Returns a list of available providers.

Requires the "Payment information" API key Access Right.

Response:

Name	Type	Description
id	Number	Provider identifier.
name	String	Provider name.

Get Provider

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/external/fiat/providers/1"

{
  "id": 1,
  "name": "providerName"
}

GET /api/3/wallet/external/fiat/providers/{id}

Returns a provider by its identifier.

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
id	Number	Provider identifier.

Response:

Name	Type	Description
id	Number	Provider identifier.
name	String	Provider name.

Get Currencies

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/external/fiat/currencies?provider_id=1&currency=USD"

[
  {
    "provider_id": 1,
    "currency": "USD",
    "enabled_deposit": true,
    "enabled_withdrawal": true
  }
]

GET /api/3/wallet/external/fiat/currencies

Returns a list of available currencies.

Requires the "Payment information" API key Access Right.

All parameters are optional.

Parameters:

Name	Type	Description
provider_id	Number	Provider identifier.
currency	String	Currency code.

Response:

Name	Type	Description
provider_id	Number	Provider identifier.
currency	String	Currency code.
enabled_deposit	Boolean	Shows whether the deposit is available for the currency.
enabled_withdrawal	Boolean	Shows whether the withdrawal is available for the currency.

Get Currency Balances

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/external/fiat/balance?provider_id=1&currency=USD"

[
  {
    "provider_id": 1,
    "currency": "USD",
    "available": "1.23",
    "pending": "0.5",
    "hold": "0"
  }
]

GET /api/3/wallet/external/fiat/balance

Returns a list of currency balances.

Requires the "Payment information" API key Access Right.

All parameters are optional.

Parameters:

Name	Type	Description
provider_id	Number	Provider identifier.
currency	String	Currency code.

Response:

Name	Type	Description
provider_id	Number	Provider identifier.
currency	String	Currency code.
available	Number	Currency balance available for spending.
pending	Number	Sum of all incomplete deposit amounts. This amount may become available soon.
hold	Number	Sum of all incomplete withdrawal amounts.

Create Plaid Widget Token

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/external/fiat/link-tokens" \
    -H "Content-Type: application/json" \
    -d '{"provider_id":1, "redirect_uri":"https://example.com/oauth.html"}'

{
  "link_token": "string",
  "expiration": "2020-12-25T23:45:00.000Z"
}

POST /api/3/wallet/external/fiat/link-tokens

Creates a new Link token. The token is used in a Plaid widget (for ACH payment methods).

Requires the "Withdraw cryptocurrencies" API key Access Right.

Parameters:

Name	Type	Description
provider_id	Number	Provider identifier.
redirect_uri	String	Optional. OAuth redirect URI indicating the destination where a user should be forwarded after completing the Link flow. Example: https://example.com/oauth.html (more details).
android_package_name	String	Optional. Name of an app's Android package. Example: com.example.application (more details).

Response:

Name	Type	Description
link_token	String	Link token string.
expiration	String	Date until which the token can be used.

Get Wire Deposit Instructions

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/external/fiat/wire-instructions?provider_id=1"

[
  {
    "provider_id": 1,
    "bank_routing_number": "123456789",
    "bank_name": "Bank Name",
    "bank_address": "1234 Street St. Suite 1234, Los Angeles CA 1234",
    "bank_phone": "+1 234 567 8910",
    "provider_account_number": "1234567890",
    "provider_account_name": "Provider Name",
    "provider_account_address": "1234 Street St. Suite 1234, Los Angeles CA 1234",
    "reference": "QNCUSNTW3"
  }
]

GET /api/3/wallet/external/fiat/wire-instructions

Returns provider wire instructions. They should be provided to the sender's bank to make wire deposits.

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
provider_id	Number	Optional. Provider identifier.

Response:

Name	Type	Description
provider_id	Number	Provider identifier.
bank_routing_number	String	ABA routing number, 9 digits.
bank_name	String	Depository bank name.
bank_address	String	Bank address.
bank_phone	String	Bank phone.
provider_account_number	String	Provider account number in a bank, 4-17 digits.
provider_account_name	String	Provider account name in a bank.
provider_account_address	String	Provider account address.
reference	String	User account reference that is used to match transaction and charge deposit.

Get Payment Method Types

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/external/fiat/method-types?provider_id=1&method_type=ACH"

[
  {
    "provider_id": 1,
    "method_type": "ACH",
    "enabled_deposit": true,
    "customizable_deposit": true,
    "enabled_withdrawal": true,
    "customizable_withdrawal": true
  }
]

GET /api/3/wallet/external/fiat/method-types

Returns a list of available payment method types.

Requires the "Payment information" API key Access Right.

All parameters are optional.

Parameters:

Name	Type	Description
provider_id	Number	Provider identifier.
method_type	String	Payment method type. Accepted values: ACH, CREDIT_CARD
enabled_deposit	Boolean	Shows whether the deposit is available for the method type.
customizable_deposit	Boolean	Shows whether it is allowed to use different method parameters while making deposits.
enabled_withdrawal	Boolean	Shows whether the withdrawal is available for the method type.
customizable_withdrawal	Boolean	Shows whether it is allowed to use different method parameters while making withdrawals.

Response:

Name	Type	Description
provider_id	Number	Provider identifier.
method_type	String	Method type. Possible values: ACH, CREDIT_CARD
enabled_deposit	Boolean	Shows whether the deposit is available for the method type.
customizable_deposit	Boolean	Shows whether it is allowed to use different method parameters while making deposits.
enabled_withdrawal	Boolean	Shows whether the withdrawal is available for the method type.
customizable_withdrawal	Boolean	Shows whether it is allowed to use different method parameters while making withdrawals.

Get Payment Methods

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/external/fiat/methods?provider_id=1"

[
  {
    "provider_id": 1,
    "method_id": "cf91c5e7-aebf-4c48-a5e6-365a7e9c834d",
    "method_type": "ACH",
    "enabled_deposit": true,
    "enabled_withdrawal": true,
    "bank_routing_number": "000000000",
    "bank_name": "string",
    "bank_account_name": "string",
    "ip_address": "0.0.0.0",
    "label": "string",
    "currencies": ["USD"]
  },
  {
    "provider_id": 1,
    "method_id": "4b4b265d-904e-4efc-8e2f-041f9468c391",
    "method_type": "CREDIT_CARD",
    "enabled_deposit": true,
    "enabled_withdrawal": false,
    "credit_card_name": "JOHN DOE",
    "credit_card_type": "VI",
    "credit_card_last_4": "1234",
    "ip_address": "0.0.0.0",
    "label": "Personal Wallet Address",
    "currencies": ["USD"]
  }
]

GET /api/3/wallet/external/fiat/methods

Returns a list of available payment methods. If enabled_deposit and enabled_withdrawal are not specified, all methods available for deposit or withdrawal will be returned.

Requires the "Payment information" API key Access Right.

All parameters are optional.

Parameters:

Name	Type	Description
provider_id	Number	Provider identifier.
method_id	String	Payment method identifier.
method_type	String	Method type. Accepted values: ACH, CREDIT_CARD
currency	String	Currency code.
enabled_deposit	Boolean	Shows whether the deposit is available for the method.
enabled_withdrawal	Boolean	Shows whether the withdrawal is available for the method.

Response:

Name	Type	Description
provider_id	Number	Provider identifier.
method_id	String	Payment method identifier.
method_type	String	Method type. Possible values: ACH, CREDIT_CARD
enabled_deposit	Boolean	Shows whether the deposit is available for the method.
enabled_withdrawal	Boolean	Shows whether the withdrawal is available for the method.
bank_routing_number	String	Optional. ABA routing number, 9 digits (for ACH type only).
bank_name	String	Optional. Depository bank name (for ACH type only).
bank_account_name	String	Optional. Bank account name (for ACH type only).
credit_card_name	String	Optional. Name of a credit card which was supplied to the widget (for CREDIT_CARD type only).
credit_card_type	String	Optional. Payment service code. For example: AE (American Express), MC (MasterCard), VI (Visa), etc. (for CREDIT_CARD type only).
credit_card_last_4	String	Optional. Last 4 digits of a credit card number (for CREDIT_CARD type only).
ip_address	String	IP address provided by user or detected automatically.
label	String	An optional text label (if supplied).
currencies	Array	List of currencies, supported by the method.

Create Payment Method

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/external/fiat/methods" \
    -d '{"provider_id":1, "method_type":"ACH", "plaid_public_token":"public-sandbox-b0e2c4ee-a763-4df5-bfe9-46a46bce993d", "plaid_account_id":"ygPnJweommTWNr9doD6ZfGR6GGVQy7fyREmWy"}'

{
  "method_id": "cf91c5e7-aebf-4c48-a5e6-365a7e9c834d"
}

POST /api/3/wallet/external/fiat/methods

Creates a new payment method. Used only for ACH, because CREDIT_CARD methods are created by the provider's credit card widget.

Requires the "Withdraw cryptocurrencies" API key Access Right.

To create an ACH method, the user should:

1. Create a Link token.
2. Provide obtained token to Plaid widget.
3. Get Plaid public_token and accounts[0].id from the widget output.
4. Send a payment method creation request with these public_token (plaid_public_token) and accounts[0].id (plaid_account_id).

Parameters:

Name	Type	Description
provider_id	Number	Optional. Provider identifier.
method_type	String	Optional. Method type. Accepted values: ACH
plaid_public_token	String	Optional. Plaid public_token, obtained from the Link onSuccess callback (required for ACH method).
plaid_account_id	String	Optional. Plaid account_id[0].id, obtained from the Link onSuccess callback (required for ACH method).
bank_routing_number	String	Optional. ABA routing number.
bank_account_number	String	Optional. Bank account number.
bank_account_name	String	Optional. Bank account name.
ip_address	String	IP address (provided by user or detected automatically).
label	String	Optional. Text label.

Response:

Name	Type	Description
method_id	String	Payment method identifier.

Delete Payment Method

curl -X DELETE -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/external/fiat/methods?provider_id=1&method_id=cf91c5e7-aebf-4c48-a5e6-365a7e9c834d"

{
  "success": true
}

DELETE /api/3/wallet/external/fiat/methods

Removes an existing provider payment method by the combination of its identifier and provider identifier.

Requires the "Withdraw cryptocurrencies" API key Access Right.

Parameters:

Name	Type	Description
provider_id	Number	Provider identifier.
method_id	String	Payment method identifier.

Response:

Name	Type	Description
success	Boolean	Shows whether the method was deleted successfully.

Create Deposit

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/external/fiat/deposit" \
    -d '{"provider_id":1, "method_id":"cf91c5e7-aebf-4c48-a5e6-365a7e9c834d", "currency":"USD", "amount":"50.0"}'

{
  "request_id": "1cc2f3fe-e3aa-48d6-966b-9b8a61030dd0",
  "status": "CREATED"
}

POST /api/3/wallet/external/fiat/deposit

Create a new provider deposit request.

Requires the "Withdraw cryptocurrencies" API key Access Right.

Parameters:

Name	Type	Description
provider_id	Number	Optional. Provider identifier.
method_id	Number	Method identifier.
currency	String	Currency code.
amount	String	Transaction amount.
three_ds_challenge_id	String	Optional. 3-D Secure challenge identifier received from the widget.

Response:

Name	Type	Description
request_id	String	Idempotent operation identifier.
status	String	Transaction status. Possible values: CREATED, PENDING, SUCCESS, ROLLED_BACK, FAILED

Create Withdrawal

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/external/fiat/withdraw" \
    -d '{"provider_id":1, "method_id":"cf91c5e7-aebf-4c48-a5e6-365a7e9c834d", "currency":"USD", "amount":"50.0"}'

{
  "request_id": "1cc2f3fe-e3aa-48d6-966b-9b8a61030dd0",
  "status": "PENDING"
}

POST /api/3/wallet/external/fiat/withdraw

Create a new provider withdrawal request.

Requires the "Withdraw cryptocurrencies" API key Access Right.

Parameters:

Name	Type	Description
provider_id	Number	Optional. Provider identifier.
method_id	Number	Method identifier.
currency	String	Currency code.
amount	Number	Transaction amount.

Response:

Name	Type	Description
request_id	String	Idempotent operation identifier.
status	String	Transaction status. Possible values: PENDING

Create Transfer

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/wallet/external/fiat/transfer" \
    -d '{"provider_id":1, "transfer_type":"PRIMETRUST_TO_SPOT", "currency":"USD", "amount":"50.0"}'

{
  "request_id": "1cc2f3fe-e3aa-48d6-966b-9b8a61030dd0",
  "status": "PENDING"
}

POST /api/3/wallet/external/fiat/transfer

Create a new provider transfer request.

Requires the "Withdraw cryptocurrencies" API key Access Right.

Parameters:

Name	Type	Description
provider_id	Number	Optional. Provider identifier.
transfer_type	String	Transfer direction. Accepted values: PRIMETRUST_TO_SPOT, SPOT_TO_PRIMETRUST, PRIMETRUST_TO_DERIVATIVES, DERIVATIVES_TO_PRIMETRUST
currency	String	Currency code.
amount	Number	Transaction amount.

Response:

Name	Type	Description
request_id	String	Idempotent operation identifier.
status	String	Transaction status. Possible values: PENDING

Sub-accounts

Get Sub-accounts List

curl -X GET -u "apiKey:secretKey" "https://api.crosstower.com/api/3/sub-account"

Response:

{
    "result": [
        {
            "sub_account_id": "179B5D",
            "email": "user+1@example.com",
            "status": "active"
        },
        {
            "sub_account_id": "179B5E",
            "email": "user+2@example.com",
            "status": "active"
        },
        {
            "sub_account_id": "179B5F",
            "email": "user+3@example.com",
            "status": "disable"
        }
    ]
}

Error response example:

Failed authorization:

{
    "error": {
        "code": 1002,
        "message": "Authorization is required or has been failed"
    }
}

Empty sub-account's list:

{
    "result": []
}

GET /api/3/sub-account

Returns list of sub-accounts per a super account.

Requires no API key Access Rights.

Response:

Name	Type	Description
sub_account_id	String	Unique identifier of a sub-account. Hex number.
email	String	Email address of a sub-account.
status	String	User status of a sub-account. Possible values: new, active, disable

Freeze Sub-account

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/sub-account/freeze" \
    -d "sub_account_ids=179B5D,179B5E"

Response:

{
    "result": true
}

Error response example:

Sub-accounts are already frozen or disabled:

{
    "error": {
        "code": 21004,
        "message": "Sub account is already frozen or disabled"
    }
}

POST /api/3/sub-account/freeze

Freezes sub-accounts listed. It implies that the Sub-accounts frozen wouldn't be able to:

• login;
• withdraw funds;
• trade;
• complete pending orders;
• use API keys.

For any sub-account listed, all orders will be canceled and all funds will be transferred from the Trading balance.

Requires no API key Access Rights.

Parameters:

Name	Type	Description
sub_account_ids	Array	Sub-accounts' identifiers separated by commas (,). Those could be obtained by the GET /api/3/sub-account request.

Response:

Name	Type	Description
result	Boolean	Value indicating whether sub-accounts were successfully frozen.

Activate Sub-account

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/sub-account/activate" \
    -d "sub_account_ids=179B5D,179B5E"

Response:

{
    "result": true
}

Error response example:

Sub-accounts are disabled, and their functionality can't be restored through activation:

{
    "result": false
}

Failed authorization:

{
    "error": {
        "code": 1002,
        "message": "Authorization is required or has been failed"
    }
}

Wrong input data format:

{
    "error": {
        "code": 10001,
        "message": "Validation error"
    }
}

Sub-accounts listed don't exist:

{
    "error": {
        "code": 21001,
        "message": "Cannot find sub account"
    }
}

POST /api/3/sub-account/activate

Activates sub-accounts listed. It would make sub-accounts active after being frozen.

Requires no API key Access Rights.

Parameters:

Name	Type	Description
sub_account_ids	Array	Sub-accounts' identifiers separated by commas (,). Those could be obtained by the GET /api/3/sub-account request.

Response:

Name	Type	Description
result	Boolean	Value indicating whether sub-accounts were successfully activated.

Transfer Funds

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/sub-account/transfer" \
    -d "sub_account_id=179B5D&amount=1&currency=BTC&type=to_sub_account"

Response:

{
    "result": "ae37e806-0191-45fc-8c49-18137274772c"
}

Error response example:

Insufficient permissions:

{
    "error": {
        "code": 1003,
        "message": "Action is forbidden for this API key"
    }
}

Sub-account is frozen or disabled:

{
    "error": {
        "code": 21004,
        "message": "Sub account is already frozen or disabled"
  }
}

Insufficient funds:

{
    "error": {
        "code": 20001,
        "message": "Insufficient funds",
        "description": "Check that the funds are sufficient, given commissions"
    }
}

POST /api/3/sub-account/transfer

Transfers funds from the super-account to a sub-account or from a sub-account to the super-account.

Requires the "Withdraw cryptocurrencies" API key Access Right.

Parameters:

Name	Type	Description
sub_account_id	Number	Identifier of a sub-account to deposit/withdraw funds.
amount	Number	Amount of funds to be transferred.
currency	String	Name (code) of base currency (e.g., "BTC").
type	String	Type of transaction. Accepted values: to_sub_account, from_sub_account

Response:

Name	Type	Description
result	String	Identifier of the transaction resulting.

Get ACL Settings

curl -X GET -u "apiKey:secretKey" "https://api.crosstower.com/api/3/sub-account/acl?sub_account_ids=179B5D,179B5E"

Response:

{
    "result": [
      {
        "sub_account_id": "179B5E",
        "deposit_address_generation_enabled": true,
        "withdraw_enabled": true,
        "description": "",
        "created_at": "2021-07-30T14:50:08.621Z",
        "updated_at": "2021-07-30T14:50:08.621Z"
      }
    ]
}

Error response example:

Insufficient permissions:

{
    "error": {
        "code": 1003,
        "message": "Action is forbidden for this API key"
    }
}

Sub-account is frozen or disabled:

{
    "error": {
        "code": 21004,
        "message": "Sub account is already frozen or disabled"
    }
}

GET /api/3/sub-account/acl

Returns a list of withdrawal settings for sub-accounts listed.

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
sub_account_ids	Array	Optional. Sub-accounts' identifiers separated by commas (,). Those could be obtained by the GET /api/3/sub-account request.

Response:

Name	Type	Description
sub_account_id	String	Unique identifier of a sub-account.
deposit_address_generation_enabled	Boolean	Value indicating the desired state of deposits.
withdraw_enabled	Boolean	Value indicating the desired state of withdrawals.
description	String	Textual description. Normally left empty.
created_at	DateTime	ACL creation time.
updated_at	DateTime	ACL update time.

Change ACL Settings

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/sub-account/acl" \
    -d "sub_account_ids=179B5E&deposit_address_generation_enabled=true&withdraw_enabled=true"

Response:

{
    "result": [
      {
        "sub_account_id": "179B5E",
        "deposit_address_generation_enabled": true,
        "withdraw_enabled": true,
        "description": "",
        "created_at": "2021-07-30T14:50:08.621Z",
        "updated_at": "2021-07-30T14:50:08.621Z"
      }
    ]
}

Error response example:

Sub-account is frozen or disabled:

{
    "error": {
        "code": 21004,
        "message": "Sub account is already frozen or disabled"
    }
}

Insufficient permissions:

{
    "error": {
        "code": 1003,
        "message": "Action is forbidden for this API key"
    }
}

POST /api/3/sub-account/acl

Disables or enables withdrawals for a sub-account.

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
sub_account_ids	Array	Sub-accounts' identifiers separated by commas (,). Those could be obtained by the GET /api/3/sub-account request.
deposit_address_generation_enabled	Boolean	Value indicating the desired state of deposits.
withdraw_enabled	Boolean	Value indicating the desired state of withdrawals.
description	String	Textual description. Normally left empty.
created_at	DateTime	ACL creation time.
updated_at	DateTime	ACL update time.

Response:

Name	Type	Description
sub_account_id	String	Unique identifier of a sub-account.
deposit_address_generation_enabled	Boolean	Value indicating the desired state of deposits.
withdraw_enabled	Boolean	Value indicating the desired state of withdrawals.
description	String	Textual description. Normally left empty.
created_at	DateTime	ACL creation time.
updated_at	DateTime	ACL update time.

Get Sub-account Balance

curl -X GET -u "apiKey:secretKey" "https://api.crosstower.com/api/3/sub-account/balance/179B5E"

Response:

{
    "result": {
        "wallet": [
          {
            "currency": "1ST",
            "available": "0.0",
            "reserved": "0.0"
          }
        ],
        "spot": [
          {
            "currency": "1ST",
            "available": "0",
            "reserved": "0"
          }
        ]
    }
}

Error response example:

Insufficient permissions:

{
    "error": {
        "code": 1003,
        "message": "Action is forbidden for this API key"
    }
}

GET /api/3/sub-account/balance/{sub_acc_id}

Returns non-zero balance values by sub-account identifier specified. Report will include the wallet and Trading balances for each currency. It is functional with no regard to the state of a sub-account. All account types are optional and appear only in case of non-zero balance.

Requires the "Payment information" API key Access Right.

Get Sub-account Crypto Address

curl -X GET -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/sub-account/crypto/address/179B5E/BTC"

Response:

{
    "result": {
        "address": "3E8WKmTJzaTsBc4kvuEJVjPNtak6vQRcRv"
    }
}

GET /api/3/sub-account/crypto/address/{sub_acc_id}/{currency}

Returns sub-account crypto address for currency.

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
network_code	String	Optional. Network code.

Response:

Name	Type	Description
address	String	Address for deposits.
payment_id	String	Optional. An additional identifier required for specific currencies (for example, "Memo").
public_key	String	Optional. An additional identifier required for specific currencies.

Buy Crypto

You can purchase cryptocurrency on our platform. The current section requests allow receiving the list of providers, available for buying crypto, and information about them. You can receive rates and orders, and create orders using these API methods as well.

Get Providers Information

curl -X GET -u "apiKey:secretKey" "https://api.crosstower.com/api/3/buy-crypto/provider"

Response:

[
    {
      "provider_id": 2,
      "provider_name": "provider",
      "methods": [
        {
          "id": 0,
          "name": "credit_debit_card",
          "description": "",
          "method_type": "credit_card",
          "logo_url": "https://example.com/logo.png",
          "status": "ACTIVE",
          "type": "credit_debit_card",
          "supported_source": [
            {
              "code": "USD",
              "display_name": "USD"
            }
          ],
          "supported_target": [
            {
              "code": "ETH",
              "display_name": "ETH"
            }
          ],
          "transaction_limits": [
            {
              "currency_code": "USD",
              "target_code": "ETH",
              "source_min": "0",
              "source_max": "124"
            }
          ]
        }
      ]
    }
]

GET /api/3/buy-crypto/provider

Returns the providers' information (transaction limits, available currencies, payment methods).

Requires the "Payment information" API key Access Right.

All parameters are optional.

Parameters:

Name	Type	Description
provider_id	Number	Provider identifier.
source	String	The source (fiat) currency code.
target	String	The target (crypto) currency code.

Response:

Name	Type	Description
provider_id	Number	Provider identifier.
provider_name	String	Provider name.
methods	Array of Method	Payment methods list.

Method model consists of:

Name	Type	Description
id	Number	Payment method identifier.
name	String	Payment method name.
description	String	Payment method text description.
method_type	String	Method type.
logo_url	String	Payment method logo URL.
status	String	Payment method status. Possible values: active
type	String	Payment method type.
supported_source	Array of Currency	The source currencies, supported by the payment method.
supported_target	Array of Currency	The target currencies, supported by the payment method.
transaction_limits	Array of Limit	Payment method limits.

Currency model consists of:

Name	Type	Description
code	String	The currency code.
display_name	String	The currency display name.

Limit model consists of:

Name	Type	Description
currency_code	String	Transaction source currency code.
target_code	String	Transaction target currency code.
source_min	String	Minimum source currency amount.
source_max	String	Maximum source currency amount.

Get Rates per Payment Method

curl -X GET -u "apiKey:secretKey" "https://api.crosstower.com/api/3/buy-crypto/provider/1/rate"

Response:

{
    "spot_price": "10268.74",
    "prices": [
      {
        "payment_method_id": 6025,
        "type": "credit_debit_card",
        "target_code": "BTC",
        "target_amount": "1",
        "source_code": "USD",
        "source_amount": "10472.06"
      }
    ]
}

GET /api/3/buy-crypto/provider/{provider_id}/rate

Returns the rates information per payment method.

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
source	String	Source currency code.
target	String	Target currency code.
source_amount	String	Optional. Amount in the source currency.
target_amount	String	Optional. Amount in the target currency.
payment_method_id	Number	Optional. Payment method identifier.

Response:

Name	Type	Description
spot_price	String	The spot price.
prices	Array of Price	Prices list.

Price model consists of:

Name	Type	Description
payment_method_id	Number	Payment method identifier.
type	String	Payment method type.
target_code	String	Target currency code.
source_code	String	Source currency code.
target_amount	String	Amount in the target currency.
source_amount	String	Amount in the source currency.

Get Order List

curl -X GET -u "apiKey:secretKey" "https://api.crosstower.com/api/3/buy-crypto/provider/1/order"

Response:

[
    {
        "id": 79,
        "provider_id": 1,
        "order_type": "buy",
        "source_code": "BTC",
        "target_code": "GBP",
        "wallet_address": "2N2gCeg7C1zKvZpFkdNNEnRFux9VSttzSVx",
        "checkout_url": "",
        "status": "expired",
        "created_at": "2021-06-07T10:04:40Z"
    }
]

GET /api/3/buy-crypto/provider/{provider_id}/order

Returns the list of buying cryptocurrency orders.

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
from	Number	Unix timestamp, filter by order creation date.
till	Number	Unix timestamp, filter by order creation date.
limit	Number	Optional. Limit.
offset	Number	Optional. Offset.
source_code	String	Optional. Source currency code.
target_code	String	Optional. Target currency code.
wallet_address	String	Optional. Filter by wallet address.

Response:

Name	Type	Description
id	String	Order identifier.
provider_id	Number	Provider identifier.
order_type	String	Provider order type (buy).
source_code	String	Source currency code.
target_code	String	Target currency code.
wallet_address	String	The user will receive cryptocurrency from the crypto provider to this address. This address is generated and provided to the crypto provider by the exchange (by us).
checkout_url	String	Checkout URL.
status	String	Provider order status. Possible values: initial, in_progress, completed, failed, expired
created_at	String	Order creation date and time.
operation_id	String	Operation identifier.

Create Order

curl -X POST -u "apiKey:secretKey" \
    "https://api.crosstower.com/api/3/buy-crypto/provider/1/order" \
    -H "Content-Type: application/json" \
    -d '{"target":"BTC", "source":"EUR", "source_amount":"20", "payment_method_id":6037}'

Response:

{
    "id": 79,
    "provider_id": 1,
    "order_type": "buy",
    "source_code": "BTC",
    "target_code": "GBP",
    "wallet_address": "2N2gCeg7C1zKvZpFkdNNEnRFux9VSttzSVx",
    "checkout_url": "",
    "status": "expired",
    "created_at": "2021-06-07T10:04:40Z"
}

POST /api/3/buy-crypto/provider/{provider_id}/order

Creates an order. The checkout_url will lead to a provider's widget page.

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
target	String	Target currency.
source	String	Source currency.
source_amount	String	Amount in source currency.
target_amount	String	Optional. Amount in target currency.
payment_method_id	Number	Payment method identifier to use.
ip	String	Optional. IP address.
user_agent	String	Optional. User's client agent.

Response:

Name	Type	Description
id	Number	Order identifier.
provider_id	Number	Provider identifier.
order_type	String	Provider order type (buy).
source_code	String	Source currency code.
target_code	String	Target currency code.
wallet_address	String	The user will receive cryptocurrency from the crypto provider to this address. This address is generated and provided to the crypto provider by the exchange.
checkout_url	String	Checkout URL.
status	String	Provider order status. Possible values: initial, in_progress, completed, failed, expired
created_at	String	Order creation date and time.
operation_id	String	Operation identifier.

Socket API Reference

Ping

wscat -c wss://api.crosstower.com/api/3/ws/public -P

Ping messages

< Received ping
< Received ping
< Received ping

After a WebSocket connection is established, the system sends ping messages to the client each 30 seconds.

In order to see incoming ping messages, place -P flag after the endpoint.

Request Object

Request

{
    "method": "spot_new_order",
    "params": {
        "client_order_id": "57d5525562c945448e3cbd559bd068c4",
        "symbol": "ETHBTC",
        "side": "sell",
        "price": "0.059837",
        "quantity": "0.015"
    },
    "id": 123
}

An RPC call is represented by sending a Request object to a Server.

The Request object has the following members:

• method — a String containing the name of the method to be invoked;
• params — a Structured value that holds the parameter values to be used during the invocation of the method;
• id — An identifier established by the Client that MUST contain a String, Number, or null value if included. If it is not included it is assumed to be a notification. The value SHOULD NOT be null.

Notification

Notification

{
    "ch": "trades",
    "update": {
        "BTCUSDT": [{
            "t": 1626861123552,
            "i": 1555634359,
            "p": "30877.68",
            "q": "0.00006",
            "s": "sell"
        }]
    }
}

A Notification is a Request object without an id member. A Request object (a Notification) signifies the lack of the Client's interest in the corresponding Response object. Therefore, no Response objects need to be returned to the Client.

The Notification object has the following members:

• method — a string containing the name of the method to be invoked;
• params — a structured value holding the parameter values to be used during the method invocation.

Response Object

When a RPC call is made, the Server MUST reply with a Response, except for Notifications cases.

Response on success subscription is true. Example:

Response

{
    "result": true,
    "id": 123
}

Response error

{
    "error": {
        "code": 2001,
        "message": "Symbol not found",
        "description": "Symbol not found"
    },
    "id": 123
}

The Response is represented as a single JSON Object, with the following members:

• result — this member is REQUIRED on success. This member MUST NOT exist if there was an error during method invocation. The value of this member is determined by the method invoked on the Server;
• error — this member is REQUIRED on error. This member MUST NOT exist if there was no error triggered during method invocation. The value for this member MUST be an Object as defined in the "Error Response" section.

Socket Market Data

In order to access market data via WebSocket interface, connect to the endpoint:

wscat -c wss://api.crosstower.com/api/3/ws/public

Request

{
    "method": "subscribe",
    "ch": "orderbook/top/1000ms",           // Channel
    "params": {
        "symbols": ["ETHBTC", "BTCUSDT"]
    },
    "id": 123
}

From that point on, you will be able to send request messages in JSON format with the following parameters:

Name	Type	Description
method	String	The name of the method to be invoked. Accepted values: subscribe, unsubscribe, subscriptions
ch	String	Channel name.
params	JSON	Parameter values to be used during the method invocation. The set of parameters may vary depending on the channel chosen.
id	String	Optional. Request identifier as assigned by sender.

Response

{
    "result": {
        "ch": "orderbook/top/1000ms",       // Channel
        "subscriptions": ["ETHBTC", "BTCUSDT"]
    },
    "id": 123
}

Any valid and successfully processed request will result in a JSON-formatted response message containing the following fields:

Name	Type	Description
result	Result	Details about resulting subscription status.
id	String	Optional. Request identifier as assigned by sender.

Result model consists of:

Name	Type	Description
ch	String	Channel name.
subscriptions	Array of String	List of active subscriptions.

Subscriptions

In case of a successful subscriptions, the server will send:

• for price/rate/{speed}, ticker/price/{speed}, ticker/{speed}, orderbook/{depth}/{speed}, orderbook/top/{speed}: data notifications (data) with a specified rate. {speed} — the period of updating data which embraces the changes that have occurred if any;
• for trades, orderbook/full, candles/{period}: snapshot (snapshot) and update (update) notifications.

In the second case, the first snapshot comes right after the response if the limit parameter is greater than 0. Snapshot gives a full account of the market within the defined scope, and an update contains only recent changes which are being sent immediately.

Batch Notifications

If a market data request includes a number subscriptions, a choice of channel will determine the distribution of updates over incoming notifications.

In the basic scenario, a single notification will contain data on a particular symbol only. Subscription to "batch" channels (ones ending with /batch) allows notifying via combined updates per multiple symbols.

Get Active Subscriptions

Request

{
    "method": "subscriptions",
    "ch": "trades",                         // Channel
    "params": {"symbols": ["ETHBTC", "BTCUSDT"]},
    "id": 123
}

Response

{
    "result": {
        "ch": "trades",                     // Channel
        "subscriptions": ["ETHBTC", "BTCUSDT"]
    },
    "id": 123
}

Method: subscriptions

Returns the list of all active subscriptions on a channel.

Subscribe to Trades

Request

{
    "method": "subscribe",
    "ch": "trades",                         // Channel
    "params": {
        "symbols": ["ETHBTC", "BTCUSDT"],
        "limit": 1
    },
    "id": 123
}

Response

{
    "result": {
        "ch": "trades",                     // Channel
        "subscriptions": ["ETHBTC", "BTCUSDT"]
    },
    "id": 123
}

Notification snapshot

{
    "ch": "trades",                         // Channel
    "snapshot": {
        "BTCUSDT": [{
            "t": 1626861109494,             // Timestamp in milliseconds
            "i": 1555634969,                // Trade identifier
            "p": "30881.96",                // Price
            "q": "12.66828",                // Quantity
            "s": "buy"                      // Side
        }]
    }
}

Notification update

{
    "ch": "trades",
    "update": {
        "BTCUSDT": [{
            "t": 1626861123552,
            "i": 1555634969,
            "p": "30877.68",
            "q": "0.00006",
            "s": "sell"
        }]
    }
}

Channel: trades

Requires no API key Access Rights.

Parameters:

Name	Type	Description
symbols	Array of String	List of symbol codes.
limit	Number	Optional. Limit to returned entries. Accepted values: 0 – 1000 Default value: 0 (no history returned)

Subscribe to Candles

Request

{
    "method": "subscribe",
    "ch": "candles/M1",                     // Channel
    "params": {
        "symbols": ["BTCUSDT"],
        "limit": 10
    },
    "id": 123
}

Response

{
    "result": {
        "ch": "candles/M1",
        "subscriptions": ["ETHBTC", "BTCUSDT"]
    },
    "id": 123
}

Notification snapshot

{
    "ch": "candles/M1",                     // Channel
    "snapshot": {
        "BTCUSDT": [{
            "t": 1626860340000,             // Message timestamp
            "o": "30881.95",                // Open price
            "c": "30890.96",                // Last price
            "h": "30900.8",                 // High price
            "l": "30861.27",                // Low price
            "v": "1.27852",                 // Base asset volume
            "q": "39493.9021811"            // Quote asset volume
        }, {
            "t": 1626860400000,
            "o": "30888.33",
            "c": "30860.52",
            "h": "30889.53",
            "l": "30860.31",
            "v": "3.80019",
            "q": "117283.0686182"
        }, {
            "t": 1626860460000,
            "o": "30858.39",
            "c": "30863.56",
            "h": "30864.89",
            "l": "30853.83",
            "v": "53.04288",
            "q": "1636858.7119248"
        }]
    }
}

Notification update

{
    "ch": "candles/M1",
    "update": {
        "ETHBTC": [{
            "t": 1626860880000,
            "o": "0.060711",
            "c": "0.060749",
            "h": "0.060749",
            "l": "0.060711",
            "v": "12.2800",
            "q": "0.7455339675"
      }]
    }
}

Channel: candles/{period}

Supported periods: M1 (one minute), M3, M5, M15, M30, H1 (one hour), H4, D1 (one day), D7, 1M (one month)

Requires no API key Access Rights.

Parameters:

Name	Type	Description
symbols	Array of String	List of symbol codes.
limit	Number	Optional. Limit to returned entries. Accepted values: 0 – 1000 Default value: 0 (no history returned)

Subscribe to Price Rates

Request

{
    "method": "subscribe",
    "ch": "price/rate/1s",                // Channel
    "params": {
        "currencies": ["ETH","BTC"],
        "target_currency": "USDT"
    },
    "id": 123
}

Response

{
    "result": {
        "ch": "price/rate/1s",            // Channel
        "target_currency": "USDT",
        "subscriptions": ["ETH","BTC"]
    },
    "id": 123
}

Data notification

{
    "ch": "price/rate/1s",
    "target_currency": "USDT",
    "data": {
        "ETH": {
            "t": 1684490221380,             // Timestamp
            "r": "1810.155"                 // Rate
        }
    }
}

{
    "ch": "price/rate/1s",
    "target_currency": "USDT",
    "data": {
        "BTC": {
            "t": 1684487340001,
            "r": "26863.71"
        }
    }
}

Channel: price/rate/{speed}

Supported speed: 1s, 3s

Parameters:

Name	Type	Description
currencies	Array of String	List of currency codes. Value ["*"] means all symbols are selected.
target_currency	String	Quote currency.

Subscribe to Price Rates in Batches

Request

{
    "method": "subscribe",
    "ch": "price/rate/1s/batch",          // Channel
    "params": {
        "currencies": ["ETH","BTC"],
        "target_currency": "USDT"
    },
    "id": 123
}

Response

{
    "result": {
        "ch": "price/rate/1s/batch",      // Channel
        "target_currency": "USDT",
        "subscriptions": ["ETH","BTC"]
    },
    "id": 123
}

Data notification

{
    "ch": "price/rate/1s/batch",
    "target_currency": "USDT",
    "data": {
        "ETH": {
            "t": 1684490221380,             // Timestamp
            "r": "1810.155"                 // Rate
        },
        "BTC": {
            "t": 1684487340001,
            "r": "26863.71"
        }
    }
}

Channel: price/rate/{speed}/batch

Supported speed: 1s, 3s

Parameters:

Name	Type	Description
currencies	Array of String	List of currency codes. Value ["*"] means all symbols are selected.
target_currency	String	Quote currency.

Subscribe to Mini Ticker

Request

{
    "method": "subscribe",
    "ch": "ticker/price/1s",                // Channel
    "params": {
        "symbols": ["ETHBTC","BTCUSDT"]
    },
    "id": 123
}

Response

{
    "result": {
        "ch": "ticker/price/1s",            // Channel
        "subscriptions": ["ETHBTC","BTCUSDT"]
    },
    "id": 123
}

Data notification

{
    "ch": "ticker/price/1s",
    "data": {
        "ETHBTC": {
            "t": 1614815872000,             // Timestamp in milliseconds
            "o": "0.030781",                // Open price
            "c": "0.060043",                // Last price
            "h": "0.031788",                // High price
            "l": "0.030733",                // Low price
            "v": "62.587",                  // Base asset volume
            "q": "1.951420577"              // Quote asset volume
        }
    }
}

{
    "ch": "ticker/price/1s",
    "data": {
        "BTCUSDT": {
            "t": 1614815872030,
            "o": "32636.79",
            "c": "32085.51",
            "h": "33379.92",
            "l": "30683.28",
            "v": "11.90667",
            "q": "384081.1955629"
        }
    }
}

Channel: ticker/price/{speed}

Supported speed: 1s, 3s

Parameters:

Name	Type	Description
symbols	Array of String	List of symbol codes. Value ["*"] means all symbols are selected.

Subscribe to Mini Ticker in Batches

Request

{
    "method": "subscribe",
    "ch": "ticker/price/1s/batch",          // Channel
    "params": {
        "symbols": ["ETHBTC","BTCUSDT"]
    },
    "id": 123
}

Response

{
    "result": {
        "ch": "ticker/price/1s/batch",      // Channel
        "subscriptions": ["ETHBTC","BTCUSDT"]
    },
    "id": 123
}

Data notification

{
    "ch": "ticker/price/1s/batch",
    "data": {
        "ETHBTC": {
            "t": 1614815872000,             // Timestamp in milliseconds
            "o": "0.030781",                // Open price
            "c": "0.060043",                // Last price
            "h": "0.031788",                // High price
            "l": "0.030733",                // Low price
            "v": "62.587",                  // Base asset volume
            "q": "1.951420577"              // Quote asset volume
        },
        "BTCUSDT": {
            "t": 1614815872030,
            "o": "32636.79",
            "c": "32085.51",
            "h": "33379.92",
            "l": "30683.28",
            "v": "11.90667",
            "q": "384081.1955629"
        }
    }
}

Channel: ticker/price/{speed}/batch

Supported speed: 1s, 3s

Parameters:

Name	Type	Description
symbols	Array of String	List of symbol codes. Value ["*"] means all symbols are selected.

Subscribe to Ticker

Request

{
    "method": "subscribe",
    "ch": "ticker/1s",                      // Channel
    "params": {
        "symbols": ["ETHBTC","BTCUSDT"]
    },
    "id": 123
}

Response

{
    "result": {
        "ch": "ticker/1s",                  // Channel
        "subscriptions": ["ETHBTC","BTCUSDT"]
    },
    "id": 123
}

Data notification

{
    "ch": "ticker/1s",
    "data": {
        "ETHBTC": {
            "t": 1614815872000,             // Timestamp in milliseconds
            "a": "0.031175",                // Best ask
            "A": "0.03329",                 // Best ask quantity
            "b": "0.031148",                // Best bid
            "B": "0.10565",                 // Best bid quantity
            "c": "0.031210",                // Last price
            "o": "0.030781",                // Open price
            "h": "0.031788",                // High price
            "l": "0.030733",                // Low price
            "v": "62.587",                  // Base asset volume
            "q": "1.951420577",             // Quote asset volume
            "p": "0.000429",                // Price change
            "P": "1.39",                    // Price change percent
            "L": 1182694927                 // Last trade identifier
      }
    }
}

{
    "ch": "ticker/1s",
    "data": {
      "BTCUSDT": {
            "t": 1614815872050,
            "a": "32289.55",
            "A": "0.41210",
            "b": "32286.67",
            "B": "1.70049",
            "c": "0.057069",
            "o": "0.030545",
            "h": "0.029653",
            "l": "0.031804",
            "v": "11.90667",
            "q": "384081.1955629",
            "p": "0.003131",
            "P": "2.77",
            "L": 1182694927
      }
    }
}

Channel: ticker/{speed}

Supported speed: 1s, 3s

Parameters:

Name	Type	Description
symbols	Array of String	List of symbol codes. Value ["*"] means all symbols are selected.

Subscribe to Ticker in Batches

Request

{
    "method": "subscribe",
    "ch": "ticker/1s/batch",                // Channel
    "params": {
        "symbols": ["ETHBTC","BTCUSDT"]
    },
    "id": 123
}

Response

{
    "result": {
        "ch": "ticker/1s/batch",            // Channel
        "subscriptions": ["ETHBTC","BTCUSDT"]
    },
    "id": 123
}

Data notification

{
    "ch": "ticker/1s/batch",
    "data": {
        "ETHBTC": {
            "t": 1614815872000,             // Timestamp in milliseconds
            "a": "0.031175",                // Best ask
            "A": "0.03329",                 // Best ask quantity
            "b": "0.031148",                // Best bid
            "B": "0.10565",                 // Best bid quantity
            "c": "0.031210",                // Last price
            "o": "0.030781",                // Open price
            "h": "0.031788",                // High price
            "l": "0.030733",                // Low price
            "v": "62.587",                  // Base asset volume
            "q": "1.951420577",             // Quote asset volume
            "p": "0.000429",                // Price change
            "P": "1.39",                    // Price change percent
            "L": 1182694927                 // Last trade identifier
      },
      "BTCUSDT": {
            "t": 1614815872050,
            "a": "32289.55",
            "A": "0.41210",
            "b": "32286.67",
            "B": "1.70049",
            "c": "0.057069",
            "o": "0.030545",
            "h": "0.029653",
            "l": "0.031804",
            "v": "11.90667",
            "q": "384081.1955629",
            "p": "0.003131",
            "P": "2.77",
            "L": 1182694927
      }
    }
}

Channel: ticker/{speed}/batch

Supported speed: 1s, 3s

Parameters:

Name	Type	Description
symbols	Array of String	List of symbol codes. Value ["*"] means all symbols are selected.

Subscribe to Full Order Book

Request

{
    "method": "subscribe",
    "ch": "orderbook/full",                 // Channel
    "params": {
        "symbols": ["ETHBTC"]
    },
    "id": 123
}

Response

{
    "result": {
        "ch": "orderbook/full",             // Channel
        "subscriptions": ["ETHBTC"]
    },
    "id": 123
}

Notification snapshot

{
    "ch": "orderbook/full",                 // Channel
    "snapshot": {
        "ETHBTC": {
            "t": 1626866578796,             // Timestamp in milliseconds
            "s": 27617207,                  // Sequence number
            "a": [                          // Asks
                ["0.060506", "0"],
                ["0.060549", "12.6431"],
                ["0.060570", "0"],
                ["0.060612", "0"]
            ],
            "b": [                          // Bids
                ["0.060439", "4.4095"],
                ["0.060414", "0"],
                ["0.060407", "7.3349"],
                ["0.060390", "0"]
            ]
        }
    }
}

Notification update

{
    "ch": "orderbook/full",
    "update": {
        "ETHBTC": {
            "t": 1626866578902,
            "s": 27617208,
            "a": [
                ["0.060508", "0"],
                ["0.060509", "2.5486"]
            ],
            "b": [
                ["0.060501", "3.9000"],
                ["0.060500", "3.0459"]
            ]
        }
    }
}

Channel: orderbook/full

Parameters:

Name	Type	Description
symbols	Array of String	List of symbol codes.

Subscribe to Partial Order Book

Request

{
    "method": "subscribe",
    "ch": "orderbook/D5/100ms",             // Channel
    "params": {
        "symbols": ["ETHBTC","BTCUSDT"]
    },
    "id": 123
}

Response

{
    "result": {
        "ch": "orderbook/D5/100ms",         // Channel
        "subscriptions": ["ETHBTC","BTCUSDT"]
    },
    "id": 123
}

Data notification

{
    "ch": "orderbook/D5/100ms",             // Channel
    "data": {
        "BTCUSDT": {
            "t": 1626958488996,             // Timestamp in milliseconds
            "s": 29472321,                  // Sequence number
            "a": [                          // Asks
                ["32091.84", "0.01016"],
                ["32091.85", "0.41484"],
                ["32095.82", "0.00705"],
                ["32095.95", "0.52001"],
                ["32097.04", "0.20518"]
            ],
            "b": [                          // Bids
                ["32089.29", "0.00228"],
                ["32088.70", "0.40315"],
                ["32084.29", "0.00616"],
                ["32084.27", "0.53169"],
                ["32078.89", "0.01016"]
            ]
        },
        "ETHBTC": {
            "t": 1626958488990,
            "s": 28438797,
            "a": [
                ["0.061873", "4.8257"],
                ["0.061887", "1.9938"],
                ["0.061912", "0.5427"],
                ["0.061913", "0.1696"],
                ["0.061914", "0.1575"]
            ],
            "b": [
                ["0.061867", "0.9868"],
                ["0.061858", "0.1598"],
                ["0.061854", "1.8327"],
                ["0.061850", "0.8125"],
                ["0.061842", "0.1763"]
            ]
        }
    }
}

Channel: orderbook/{depth}/{speed}

Supported depth: D5, D10, D20

Supported speed: 100ms, 500ms, 1000ms

Parameters:

Name	Type	Description
symbols	Array of String	List of symbol codes. Value ["*"] means all symbols are selected.

Subscribe to Partial Order Book in Batches

Request

{
    "method": "subscribe",
    "ch": "orderbook/D5/1000ms/batch",      // Channel
    "params": {
        "symbols": ["ETHBTC","BTCUSDT"]
    },
    "id": 123
}

Response

{
    "result": {
        "ch": "orderbook/D5/1000ms/batch",  // Channel
        "subscriptions": ["ETHBTC","BTCUSDT"]
    },
    "id": 123
}

Data notification

{
    "ch": "orderbook/D5/1000ms/batch",      // Channel
    "data": {
        "BTCUSDT": {
            "t": 1626958488996,             // Timestamp in milliseconds
            "s": 29472321,                  // Sequence number
            "a": [                          // Asks
                ["32091.84", "0.01016"],
                ["32091.85", "0.41484"],
                ["32095.82", "0.00705"],
                ["32095.95", "0.52001"],
                ["32097.04", "0.20518"]
            ],
            "b": [                          // Bids
                ["32089.29", "0.00228"],
                ["32088.70", "0.40315"],
                ["32084.29", "0.00616"],
                ["32084.27", "0.53169"],
                ["32078.89", "0.01016"]
            ]
        },
        "ETHBTC": {
            "t": 1626958488990,
            "s": 28438797,
            "a": [
                ["0.061873", "4.8257"],
                ["0.061887", "1.9938"],
                ["0.061912", "0.5427"],
                ["0.061913", "0.1696"],
                ["0.061914", "0.1575"]
            ],
            "b": [
                ["0.061867", "0.9868"],
                ["0.061858", "0.1598"],
                ["0.061854", "1.8327"],
                ["0.061850", "0.8125"],
                ["0.061842", "0.1763"]
            ]
        }
    }
}

Channel: orderbook/{depth}/{speed}/batch

Supported depth: D5, D10, D20

Supported speed: 100ms, 500ms, 1000ms

Parameters:

Name	Type	Description
symbols	Array of String	List of symbol codes. Value ["*"] means all symbols are selected.

Subscribe to Top of Book

Request

{
    "method": "subscribe",
    "ch": "orderbook/top/1000ms",           // Channel
    "params": {
        "symbols": ["ETHBTC", "BTCUSDT"]
    },
    "id": 123
}

Response

{
    "result": {
        "ch": "orderbook/top/1000ms",       // Channel
        "subscriptions": ["ETHBTC", "BTCUSDT"]
    },
    "id": 123
}

Data notifications

{
    "ch": "orderbook/top/1000ms",
    "data": {
        "ETHBTC": {
            "t": 1626954648761,             // Timestamp in milliseconds
            "a": "0.062135",                // Best ask
            "A": "4.1591",                  // Best ask quantity
            "b": "0.062124",                // Best bid
            "B": "0.9877"                   // Best bid quantity
        }
    }
}

{
    "ch": "orderbook/top/1000ms",
    "data": {
        "BTCUSDT": {
            "t": 1626954648863,
            "a": "31936.09",
            "A": "1.30000",
            "b": "31933.40",
            "B": "0.00058"
        }
    }
}

Channel: orderbook/top/{speed}

Supported speed: 100ms, 500ms, 1000ms

Parameters:

Name	Type	Description
symbols	Array of String	List of symbol codes. Value ["*"] means all symbols are selected.

Subscribe to Top of Book in Batches

Request

{
    "method": "subscribe",
    "ch": "orderbook/top/100ms/batch",      // Channel
    "params": {
        "symbols": ["ETHBTC", "BTCUSDT"]
    },
    "id": 123
}

Response

{
    "result": {
        "ch": "orderbook/top/100ms/batch",  // Channel
        "subscriptions": ["ETHBTC", "BTCUSDT"]
    },
    "id": 123
}

Data notification

{
    "ch": "orderbook/top/100ms/batch",
    "data": {
        "ETHBTC": {
            "t": 1614815872000              // Timestamp in milliseconds
            "a": "0.031175",                // Best ask
            "A": "0.4033",                  // Best ask quantity
            "b": "0.031148",                // Best bid
            "B": "0.3649",                  // Best bid quantity
        },
        "BTCUSDT": {
            "t": 1614815872005
            "a": "0.031175",
            "A": "0.4033",
            "b": "0.031148",
            "B": "0.3649",
        }
    }
}

Channel: orderbook/top/{speed}/batch

Supported speed: 100ms, 500ms, 1000ms

Parameters:

Name	Type	Description
symbols	Array of String	List of symbol codes. Value ["*"] means all symbols are selected.

Socket Authentication

Basic

Example with Basic algorithm:

wscat -c wss://api.crosstower.com/api/3/ws/trading

{
    "method": "login",
    "params": {
        "type": "BASIC",
        "api_key": "apiKey",
        "secret_key": "secretKey"
    }
}

Request method: login

Parameters:

Name	Type	Description
type	String	Encryption algorithm. Accepted values: BASIC
api_key	String	API public key.
secret_key	String	API secret key.

HS256

Example with HS256 algorithm:

wscat -c wss://api.crosstower.com/api/3/ws/trading

{
    "method": "login",
    "params": {
        "type": "HS256",
        "api_key": "apiKey",
        "timestamp": 1626861109494,
        "signature": "secretKey"
    }
}

Signature generation example

from websocket import create_connection
import websocket
import json
from hashlib import sha256
from hmac import HMAC
from time import time

timestamp = int(time() * 1000)
api_key = "apiKey"
secret = "secretKey"
window = 10000
message = str(timestamp)

if window:
     message += str(window)

ws = create_connection('wss://api.crosstower.com/api/3/ws/trading')
sign = HMAC(key=secret.encode(),
            msg=message.encode(),
            digestmod=sha256).hexdigest()
res = ws.send(json.dumps({"method": "login", "params": {"type": "HS256", "api_key": api_key, "timestamp": timestamp, "window": window, "signature": sign}}))
print(ws.recv())

Request method: login

Parameters:

Name	Type	Description
type	String	Encryption algorithm. Accepted values: HS256
api_key	String	API public key.
timestamp	Number	Timestamp.
window	Number	Optional. Maximum difference between timestamp and the moment of request processing in seconds. Accepted range: 1 – 60 Default value: 10
signature	String	HMAC SHA256 sign with API secret key.

Socket Trading

Trade via socket has some major differences compared to REST:

• quickness. The time to place a new order is a bit higher than network latency;
• the Server notifies you of any order updates;
• FIFO. Your requests are executed on a First In First Out basis.

Socket Spot Trading

Subscribe to Reports

Request

wscat -c wss://api.crosstower.com/api/3/ws/trading

{
    "method": "spot_subscribe",
    "params": {},
    "id": 123
}

Subscription result:

{
    "jsonrpc": "2.0",
    "result": true,
    "id": 123
}

Notification Spot orders snapshot

{
    "jsonrpc": "2.0",
    "method": "spot_orders",
    "params": [
      {
        "id": 584244931496,
        "client_order_id": "b5acd79c0a854b01b558665bcf379456",
        "symbol": "BTCUSDT",
        "side": "buy",
        "status": "new",
        "type": "limit",
        "time_in_force": "GTC",
        "quantity": "0.01000",
        "quantity_cumulative": "0",
        "price": "0.01",
        "post_only": false,
        "created_at": "2021-07-02T22:52:32.864Z",
        "updated_at": "2021-07-02T22:52:32.864Z",
        "report_type": "status"
      },
      {
        "id": 584246978340,
        "client_order_id": "eeb7d144eca545cd93d83078bc60b7f4",
        "symbol": "BTCUSDT",
        "side": "buy",
        "status": "new",
        "type": "limit",
        "time_in_force": "GTC",
        "quantity": "0.01000",
        "quantity_cumulative": "0",
        "price": "0.02",
        "post_only": false,
        "created_at": "2021-07-02T22:56:43.588Z",
        "updated_at": "2021-07-02T22:56:43.588Z",
        "report_type": "status"
      }
    ]
}

Notification Spot order update

{
    "jsonrpc": "2.0",
    "method": "spot_order",
    "params": {
        "id": 584244931496,
        "client_order_id": "b5acd79c0a854b01b558665bcf379456",
        "symbol": "BTCUSDT",
        "side": "buy",
        "status": "new",
        "type": "limit",
        "time_in_force": "GTC",
        "quantity": "0.01000",
        "quantity_cumulative": "0",
        "price": "0.01",
        "post_only": false,
        "created_at": "2021-07-02T22:52:32.864Z",
        "updated_at": "2021-07-02T22:52:32.864Z",
        "report_type": "new"
    }
}

Notification Spot trade

{
    "jsonrpc": "2.0",
    "method": "spot_order",
    "params": {
        "id": 626857425737,
        "client_order_id": "rqq6qnVTWvHa5YYG-7RviHLyA8JBu6Gj",
        "symbol": "BTCUSDT",
        "side": "buy",
        "status": "filled",
        "type": "market",
        "time_in_force": "GTC",
        "quantity": "0.00001",
        "quantity_cumulative": "0.00001",
        "post_only": false,
        "created_at": "2021-08-23T16:29:24.006Z",
        "updated_at": "2021-08-23T16:29:24.006Z",
        "trade_id": 1361977606,
        "trade_quantity": "0.00001",
        "trade_price": "49595.04",
        "trade_fee": "0.001239876000",
        "trade_taker": true,
        "report_type": "trade"
    }
}

Method: spot_subscribe, spot_unsubscribe

Income methods: spot_order, spot_orders

Subscribes to execution reports of user's orders.

Requires the "Orderbook, History, Trading balance" API key Access Right.

Response:

Name	Type	Description
id	Number	Unique order identifier as assigned by exchange.
client_order_id	String	Unique order identifier as assigned by the trader.
symbol	String	Symbol code.
side	String	Trade side. Accepted values: sell, buy
status	String	Order state. Possible values: new — an order is placed in the order book. suspended — a stopLimit, stopMarket, takeProfitLimit or takeProfitMarket order is parked until it meets the conditions for placement in the order book. partiallyFilled — an order is executed, but a part of its quantity is not filled yet. filled — (in updates) order quantity filled completely. canceled — (in updates) an order is canceled. It can either be done by a user through a cancel/replace request or by the system under specific circumstances. expired — (in updates) an order is deactivated after it no longer satisfies Time in Force (IOC, FOK) or Post Only requirements.
type	String	Order type. Possible values: limit, market, stopLimit, stopMarket, takeProfitLimit, takeProfitMarket
time_in_force	String	Time in Force is a special instruction used when placing an order to indicate how long it will remain active before it is executed or expired. GTC — "Good-Till-Canceled" order won't be closed until it is filled. IOC — "Immediate-Or-Cancel" order must be executed immediately. Any part of an IOC order that cannot be filled immediately will be canceled. FOK — "Fill-Or-Kill" order must be executed immediately and completely or not executed at all. Day — keeps the order active until the end of the trading day (23:59 UTC+0). GTD — "Good-Till-Date" order may remain active until the time specified in expire_time.
quantity	Number	Order quantity.
price	Number	Order price.
cum_quantity	Number	Cumulative executed quantity.
post_only	Boolean	A post-only order is an order that does not remove liquidity. If a post-only order causes a match with a pre-existing order as a taker, then the order will expire.
created_at	DateTime	Report creation date.
updated_at	DateTime	Date of the report's last update.
stop_price	Number	Required for stop-limit, stop-market, take-profit limit, and take-profit market orders.
expire_time	DateTime	Date of order expiration for time_in_force equal to GTD.
original_client_order_id	String	Identifier of replaced order.
trade_id	Number	Trade identifier. Required if report_type is trade.
trade_quantity	Number	Quantity of trade. Required if report_type is trade.
trade_price	Number	Trade price. Required if report_type is trade.
trade_fee	Number	Fee paid for trade. Required if report_type is trade.
trade_taker	Boolean	Liquidity indicator. Required if report_type is trade.
report_type	String	Report type. Possible values: status — (in snapshots) the record of an event occurred during the last snapshot period. new — (in updates) an order has been placed in the order book (status is new). suspended — (in updates) a stopLimit, stopMarket, takeProfitLimit or takeProfitMarket order is parked until it meets the conditions for placement in the order book (status is suspended). canceled — (in updates) an order is canceled. It can either be done by a user through a cancel/replace request or by the system under specific circumstances. rejected — (in updates) order request has been rejected (it is applicable exclusively to a request entry, so the status of the related canceled/replaced order will not change — i.e., it cannot be different from new, suspended, partiallyFilled). status is rejected. expired — (in updates) an order is deactivated as it no longer satisfies Time in Force (IOC, FOK) or Post Only requirements (status is expired). replaced — (in updates) an order cancel/replace request has been accepted and successfully processed (status is canceled, a new order placed instead has the new status value). trade — (in updates) an order has been fully or partially executed (status is filled or partiallyFilled).

Get Active Spot Orders

Notification report

{
    "jsonrpc": "2.0",
    "result": [
      {
        "id": 583502239480,
        "client_order_id": "9be4d950d3c04485854ec5d7f260b1e8",
        "symbol": "BTCUSDT",
        "side": "buy",
        "status": "new",
        "type": "limit",
        "time_in_force": "GTC",
        "quantity": "0.01000",
        "quantity_cumulative": "0",
        "price": "0.01",
        "post_only": false,
        "created_at": "2021-07-01T23:04:04.048Z",
        "updated_at": "2021-07-01T23:04:04.048Z",
        "report_type": "status"
      }
    ],
    "id": 123
}

Method: spot_get_orders

Returns active orders.

Place New Spot Order

Request:

{
    "method": "spot_new_order",
    "params": {
        "client_order_id": "57d5525562c945448e3cbd559bd068c4",
        "symbol": "ETHBTC",
        "side": "sell",
        "type": "limit",
        "quantity": "0.015",
        "price": "0.059837"
    },
    "id": 123
}

Success response:

{
    "jsonrpc": "2.0",
    "result": {
        "id": 583565960004,
        "client_order_id": "57d5525562c945448e3cbd559bd06211",
        "symbol": "BTCUSDT",
        "side": "buy",
        "status": "new",
        "type": "market",
        "time_in_force": "GTC",
        "quantity": "0.00001",
        "quantity_cumulative": "0",
        "post_only": false,
        "created_at": "2021-07-02T00:58:05.307Z",
        "updated_at": "2021-07-02T00:58:05.307Z",
        "report_type": "new"
    },
    "id": 123
}

Example error response:

{
    "error": {
        "code": 20001,
        "message": "Insufficient funds",
        "description": "Check that the funds are sufficient, given commissions"
    },
    "id": 123
}

Method: spot_new_order

Creates a new spot order.

Requires the "Place/cancel orders" API key Access Right.

Parameters:

Name	Type	Description
client_order_id	String	Optional. Unique order identifier as assigned by the trader. Uniqueness must be guaranteed until the last order with the same client_order_id becomes inactive (canceled, expired, or fully executed) and some time after that.
symbol	String	Symbol code.
side	String	Trade side. Accepted values: sell, buy
type	String	Optional. Order type. Must be set to market, stopMarket, or takeProfitMarket if price was left unspecified. Accepted values: limit, market, stopLimit, stopMarket, takeProfitLimit, takeProfitMarket Default value: limit
time_in_force	String	Optional. Order type. Accepted values: GTC, IOC, FOK, Day, GTD Default value: GTC
quantity	Number	Order quantity.
price	Number	Order price. Required for limit types.
stop_price	Number	Required for stop-limit, stop-market, take-profit limit, and take-profit market orders.
expire_time	DateTime	Required if time_in_force is GTD.
strict_validate	Boolean	Price and quantity will be checked for incrementation within the symbol's tick size and quantity step. See the symbol's tick_size and quantity_increment.
post_only	Boolean	A post-only order is an order that does not remove liquidity. If a post-only order causes a match with a pre-existing order as a taker, then the order will expire.
take_rate	Number	Optional. Liquidity taker fee, a fraction of order volume, such as 0.001 (for 0.1% fee). Can only increase the fee. Used for fee markup.
make_rate	Number	Optional. Liquidity provider fee, a fraction of order volume, such as 0.001 (for 0.1% fee). Can only increase the fee. Used for fee markup.

Create New Spot Order List

Request:

{
    "method": "spot_new_order_list",
    "params": {
        "order_list_id": "d8574207d9e3b16a4a5511753eeef175",
        "contingency_type": "oneCancelOther",
        "orders": [
            {
                "client_order_id": "d8574207d9e3b16a4a5511753eeef175",
                "symbol": "ETHBTC",
                "side": "buy",
                "type": "limit",
                "time_in_force": "GTC",
                "quantity": "0.063",
                "price": "0.046016",
                "post_only": false
            },
            {
                "client_order_id": "a53406ea49e160c63b620ca21e9fb634",
                "symbol": "ETHBTC",
                "side": "sell",
                "type": "stopMarket",
                "time_in_force": "GTC",
                "quantity": "0.063",
                "stop_price": "0.044050",
                "price": "0.044016",
                "post_only": false
            }
        ]
    },
    "id": 123
}

Success response:

{
    "jsonrpc": "2.0",
    "result": [
        {
            "id": 840450210,
            "client_order_id": "d8574207d9e3b16a4a5511753eeef175",
            "symbol": "ETHBTC",
            "side": "buy",
            "status": "new",
            "type": "limit",
            "time_in_force": "GTC",
            "quantity": "0.063",
            "price": "0.046016",
            "quantity_cumulative": "0.000",
            "post_only": false,
            "order_list_id": "d8574207d9e3b16a4a5511753eeef175",
            "contingency_type": "oneCancelOther",
            "created_at": "2021-06-15T17:01:05.092Z",
            "updated_at": "2021-06-15T17:01:05.092Z"
        },
        {
            "id": 840450211,
            "client_order_id": "a53406ea49e160c63b620ca21e9fb634",
            "symbol": "ETHBTC",
            "side": "sell",
            "status": "suspended",
            "type": "stopMarket",
            "time_in_force": "GTC",
            "quantity": "0.063",
            "stop_price": "0.044050",
            "price": "0.044016",
            "quantity_cumulative": "0.000",
            "post_only": false,
            "order_list_id": "d8574207d9e3b16a4a5511753eeef175",
            "contingency_type": "oneCancelOther",
            "created_at": "2021-06-15T17:01:05.092Z",
            "updated_at": "2021-06-15T17:01:05.092Z"
        }
    ],
    "id": 123
}

Example error response:

{
    "error": {
        "code": 20001,
        "message": "Insufficient funds",
        "description": "Check that the funds are sufficient, given commissions"
    },
    "id": 123
}

Method: spot_new_order_list

Creates a new spot order list.

Requires the "Place/cancel orders" API key Access Right.

Parameters:

Name	Type	Description
order_list_id	String	Order list identifier. If omitted, it will be generated by the system upon order list creation. Must be equal to client_order_id of the first order in the request.
contingency_type	String	Order list type. Accepted values: allOrNone (AON) — all orders in the set should be executed within a single transaction or become expired otherwise; oneCancelOther (OCO) — all orders in the set should be canceled if one of them was executed; oneTriggerOther (OTO) — execution of the first (primary) order on the list activates other (secondary) orders as independent of each other; oneTriggerOneCancelOther (OTOCO) — the execution of the first (primary) order on the list activates the other (secondary) orders as an OCO order list.
orders	Array of Order	Orders in the list. There must be 2 or 3 orders for allOrNone/oneCancelOther/oneTriggerOther and 3 — for oneTriggerOneCancelOther. Placing any other number of orders will result in an error.

Order model consists of:

Name	Type	Description
client_order_id	String	Optional. Must be different from the identifiers of other orders in the list. If omitted, it will be generated by the system upon order list creation. Uniqueness must be guaranteed until the last order with the same client_order_id becomes inactive (canceled, expired, or fully executed) and some time after that.
symbol	String	Symbol code. For an allOrNone order list, symbol code must be unique for each order in the list. For an oneTriggerOneCancelOther order list, symbol code must be the same for all orders in the list (placing orders in different order books is not supported).
side	String	Trade side. Accepted values: sell, buy
type	String	Optional. Order type. Accepted values: for allOrNone — limit, market; for oneCancelOther (and secondary orders in oneTriggerOneCancelOther) — limit, stopLimit, stopMarket, takeProfitLimit, takeProfitMarket; for oneTriggerOneCancelOther — limit, market, stopLimit, stopMarket, takeProfitLimit, takeProfitMarket. Default value: limit
time_in_force	String	Optional (required for allOrNone). Time in Force instruction. Accepted values: for allOrNone — FOK; for oneCancelOther (and secondary orders in oneTriggerOneCancelOther) — GTC, IOC (except limit orders), FOK (except limit orders), Day, GTD; for oneTriggerOneCancelOther — GTC, IOC, FOK, Day, GTD.
quantity	Number	Order quantity.
price	Number	Order price. Required if type is limit, stopLimit, or takeProfitLimit.
stop_price	Number	The price level that triggers order activation. Required if type is stopLimit, stopMarket, takeProfitLimit, or takeProfitMarket.
expire_time	DateTime	Date of order expiration. Required if time_in_force is GTD.
strict_validate	Boolean	Price and quantity will be checked for incrementation within the symbol’s tick size and quantity step. See the symbol's tick_size and quantity_increment.
post_only	Boolean	Optional. If a post-only order causes a match with a pre-existing order as a taker, then the order will expire.
take_rate	Number	Optional. Liquidity taker fee, a fraction of order volume, such as 0.001 (for 0.1% fee). Can only increase the fee. Used for fee markup.
make_rate	Number	Optional. Liquidity provider fee, a fraction of order volume, such as 0.001 (for 0.1% fee). Can only increase the fee. Used for fee markup.

Cancel Spot Order

Request:

{
    "method": "spot_cancel_order",
    "params": {
        "client_order_id": "57d5525562c945448e3cbd559bd068c4"
    },
    "id": 123
}

Response:

{
    "jsonrpc": "2.0",
    "result": {
        "id": 583569472521,
        "client_order_id": "8a97337322774d8ea56448290fbc87b3",
        "symbol": "BTCUSDT",
        "side": "buy",
        "status": "canceled",
        "type": "limit",
        "time_in_force": "GTC",
        "quantity": "0.00001",
        "quantity_cumulative": "0",
        "price": "0.01",
        "post_only": false,
        "created_at": "2021-07-02T01:03:56.625Z",
        "updated_at": "2021-07-02T01:05:41.84Z",
        "report_type": "canceled"
    },
    "id": 123
}

Method: spot_cancel_order

Cancels an existing order.

Cancel/Replace Spot Order

Request:

{
    "method": "spot_replace_order",
    "params": {
        "client_order_id": "d6b645556af740b1bd1683400fd9cbce",
        "new_client_order_id": "d6b645556af740b1bd1683400fd9cbcf",
        "quantity": "0.00001",
        "price": "0.02"
    },
    "id": 123
}

Response:

{
    "jsonrpc": "2.0",
    "result": {
        "id": 583572753114,
        "client_order_id": "d6b645556af740b1bd1683400fd9cbcf",
        "symbol": "BTCUSDT",
        "side": "buy",
        "status": "new",
        "type": "limit",
        "time_in_force": "GTC",
        "quantity": "0.00001",
        "quantity_cumulative": "0",
        "price": "0.02",
        "post_only": false,
        "created_at": "2021-07-02T01:10:06.976Z",
        "updated_at": "2021-07-02T01:11:18.238Z",
        "original_client_order_id": "d6b645556af740b1bd1683400fd9cbce",
        "report_type": "replaced"
    }
}

The Cancel/Replace request is used to change the parameters of an existing order and to change the quantity or price attribute of an open order.

Do not use this request to cancel the quantity remaining in an outstanding order. Use the Cancel request message for this purpose.

It is stipulated that a newly entered order cancels a prior order that has been entered but not yet executed.

Method: spot_replace_order

Requires the "Place/cancel orders" API key Access Right.

Parameters:

Name	Type	Description
client_order_id	String	Required. Identifier of the order being replaced.
new_client_order_id	String	Required. client_order_id for a new order. Uniqueness must be guaranteed until the last order with the same client_order_id becomes inactive (canceled, expired, or fully executed) and some time after that.
quantity	Number	New order quantity.
price	Number	New order price.
strict_validate	Boolean	Price and quantity will be checked for the incrementation within tick size and quantity step. See symbol's tick_size and quantity_increment.

Cancel Spot Orders

Request:

{
    "method": "spot_cancel_orders",
    "params": {},
    "id": 123
}

Response:

{
    "jsonrpc": "2.0",
    "result": [
      {
        "id": 583572753114,
        "client_order_id": "d6b645556af740b1bd1683400fd9cbcf",
        "symbol": "BTCUSDT",
        "side": "buy",
        "status": "new",
        "type": "limit",
        "time_in_force": "GTC",
        "quantity": "0.00001",
        "quantity_cumulative": "0",
        "price": "0.02",
        "post_only": false,
        "created_at": "2021-07-02T01:10:06.976Z",
        "updated_at": "2021-07-02T01:11:18.238Z",
        "report_type": "canceled"
      }
    ]
}

Method: spot_cancel_orders

Cancels all user's active orders and returns the ones which could not be canceled.

Requires the "Place/cancel orders" API key Access Right.

Subscribe to Spot Balances

Request

{
    "method": "spot_balance_subscribe",
    "params": {
        "mode": "updates"
    },
    "id": 123
}

Subscription result:

{
    "jsonrpc": "2.0",
    "result": true,
    "id": 123
}

Notification Spot balance

{
    "jsonrpc": "2.0",
    "method": "spot_balance",
    "params": [
        {
            "currency": "BCN",
            "available": "100.000000000000",
            "reserved": "0"
        },
        {
            "currency": "BTC",
            "available": "0.013634021",
            "reserved": "0"
        },
        {
            "currency": "ETH",
            "available": "0",
            "reserved": "0"
        }
    ]
}

Method: spot_balance_subscribe, spot_balance_unsubscribe

Income methods: spot_balance

Subscribes to user's balances.

Requires the "Orderbook, History, Trading balance" API key Access Right.

Parameters:

Name	Type	Description
mode	String	Optional. Subscription mode. Accepted values: updates — messages arrive after balance updates. batches — messages arrive at equal intervals if there were any updates.

Response:

Name	Type	Description
currency	String	Currency code.
available	Number	Amount available for trading or transfer to wallet.
reserved	Number	Total amount reserved for active orders and incomplete transfers to wallet.

Get Spot Trading Balances

Request:

{
    "method": "spot_balances",
    "params": {},
    "id": 123
}

Response:

{
    "jsonrpc":"2.0",
    "result": [
      {
        "currency": "BCN",
        "available": "100.000000000000",
        "reserved": "0"
      },
      {
        "currency": "BTC",
        "available": "0.013634021",
        "reserved": "0"
      },
      {
        "currency": "ETH",
        "available": "0",
        "reserved": "0"
      }
    ],
    "id": 123
}

Method: spot_balances

Returns all non-zero trading balances.

Requires the "Orderbook, History, Trading balance" API key Access Right.

Get Spot Trading Balance

Request:

{
    "method": "spot_balance",
    "params": {
        "currency": "BTC"
    },
    "id": 123
}

Response:

{
    "jsonrpc":"2.0",
    "result": {
        "currency": "BTC",
        "available": "0.013634021",
        "reserved": "0"
    },
    "id": 123
}

Method: spot_balance

Returns trading balance for a single currency.

Get Spot Fees

Request:

{
    "method": "spot_fees",
    "params": {},
    "id": 123
}

Response:

{
    "jsonrpc":"2.0",
    "result": [
    {
        "symbol": "BTCUSDT",
        "take_rate": "0.001",
        "make_rate": "-0.0001"
    },
    {
        "symbol": "ETHBTC",
        "take_rate": "0.001",
        "make_rate": "-0.0001"
    }
    ],
    "id": 123
}

Method: spot_fees

Returns fees for all available symbols.

Requires the "Orderbook, History, Trading balance" API key Access Right.

Get Spot Fee

Request:

{
    "jsonrpc":"2.0",
    "method": "spot_fee",
    "params": {
        "symbol": "BTCUSDT"
    },
    "id": 123
}

Response:

{
    "jsonrpc":"2.0",
    "result":
    {
        "symbol": "BTCUSDT",
        "take_rate": "0.001",
        "make_rate": "-0.0001"
    },
    "id": 123
}

Method: spot_fee

Returns fees for the symbol specified.

Requires the "Orderbook, History, Trading balance" API key Access Right.

Socket Wallet Management

Description

WebSocket Account API uses the same authorization approach as described in the Socket Session Authentication section.

API provides the following tools to manage a general account:

• a subscription to the transactions:
  • any sequenced transaction changes such as creating or updating.
• a balance request;
• a transaction history request.

Subscribe to Transactions

Method: subscribe_transactions and the corresponding unsubscription method: unsubscribe_transactions

Income method: transaction_update

A full transaction model description can be found in the "Get Transactions History" section.

A subscription to the transactions has to be used rather than the transaction polling.

A transaction notification occurs each time the transaction has been changed, such as creating a transaction, updating the pending state (e.g., the hash assigned) or completing a transaction. This is the easiest way to track deposits or develop real-time asset monitoring.

Subscription request:

wscat -c wss://api.crosstower.com/api/3/ws/wallet

{
    "method": "subscribe_transactions",
    "params": {},
    "id": 7652
}

Subscription result:

{
    "result": true,
    "id": 7652
}

Notification. Updated Transaction:

{
  "method": "transaction_update",
  "params": {
    {
      "id": 50844835,
      "created_at": "2021-06-22T21:03:04.111Z",
      "updated_at": "2021-06-22T21:04:41.487Z",
      "status": "SUCCESS",
      "type": "WITHDRAW",
      "subtype": "BLOCKCHAIN",
      "native": {
        "tx_id": "27fa7f14-ca49-42fd-834a-4ce630d069d2",
        "index": 1071885589,
        "currency": "ETH",
        "amount": "0.01042",
        "fee": "0.00958",
        "hash": "0xfb0ba568213d11230cd34d62fddd1cc1fe11fdc173l4f2007b0e47a06ad73d20",
        "address": "0xd959463c3fcb222124bb7bb642d6a6573a6c5aba",
        "confirmations": 20
     }
  }
}

Subscribe to Wallet Balance

Method: subscribe_wallet_balances and the corresponding unsubscription method: unsubscribe_wallet_balances

Income methods: wallet_balances, wallet_balance_update

This subscription aims to provide an easy way to be informed of the current balance state. If the state has been changed or potentially changed, the wallet_balance_update event will come with the actual state. Please be aware that only non-zero values are present.

Event wallet_balances arrives after each successful subscription.

Subscription request:

{
    "method": "subscribe_wallet_balances",
    "params": {},
    "id": 7653
}

Subscription result:

{
    "jsonrpc": "2.0",
    "result": true,
    "id": 7653
}

Notification. Balance snapshot:

{
    "jsonrpc": "2.0",
    "method": "wallet_balances",
    "params": [
        {
            "currency": "BTC",
            "available": "0.00005821",
            "reserved": "0"
        },
        {
            "currency": "ETH",
            "available": "11",
            "reserved": "0"
        }
    ]
}

Notification. Balance update:

{
    "jsonrpc": "2.0",
    "method": "wallet_balance_update",
    "params": {
        "currency": "BTC",
        "available": "0.10005821",
        "reserved": "0"
    }
}

Request Wallet Balance

Request:

{
    "method": "wallet_balances",
    "params": {},
    "id": 5543
}

Response:

{
    "jsonrpc": "2.0",
    "result": [
        {
            "currency": "BTC",
            "available": "0.00005821",
            "reserved": "0"
        },
        {
            "currency": "ETH",
            "available": "11",
            "reserved": "0"
        }
    ],
    "id": 5543
}

Request:

{
    "method": "wallet_balance",
    "params": {
        "currency": "BTC"
    },
    "id": 5543
}

Response:

{
    "jsonrpc": "2.0",
    "result": {
        "currency": "BTC",
        "available": "0.00005821",
        "reserved": "0"
    },
    "id": 5543
}

Methods: wallet_balances, wallet_balance

Get all wallet balances or balance for a single asset.

Please note that the method returns non-zero balances only.

Get Transactions

Request:

{
    "method": "get_transactions",
    "params": {
        "limit": 10,
        "offset": 0,
        "sort": "desc",
        "from": "2020-01-31T00:00:00.000Z",
        "till": "2021-07-31T22:33:00.555Z",
        "statuses": "SUCCESS",
        "currencies": "ETH,BTC"
        },
    "id": 7655
}

Response:

{
  "result": [
    {
      "id": 50844835,
      "created_at": "2021-06-22T21:03:04.111Z",
      "updated_at": "2021-06-22T21:04:41.487Z",
      "status": "SUCCESS",
      "type": "WITHDRAW",
      "subtype": "BLOCKCHAIN",
      "native": {
        "tx_id": "27fa7f14-ca49-42fd-834a-4ce630d069d2",
        "index": 1071885589,
        "currency": "ETH",
        "amount": "0.01042",
        "fee": "0.00958",
        "hash": "0xfb0ba568213d11230cd34d62fddd1cc1fe11fdc173l4f2007b0e47a06ad73d20",
        "address": "0xd959463c3fcb222124bb7bb642d6a6573a6c5aba",
        "confirmations": 20
      }
    },
    {
      "id": 36896428,
      "created_at": "2020-11-12T10:27:26.135Z",
      "updated_at": "2020-11-12T10:42:29.065Z",
      "status": "SUCCESS",
      "type": "DEPOSIT",
      "subtype": "BLOCKCHAIN",
      "native": {
        "tx_id": "a271ad64-5f34-4115-a63e-1cb5bbe4f67e",
        "index": 429625504,
        "currency": "BTC",
        "amount": "0.04836614",
        "hash": "4d7ae7c9d6fe84405ae167b3f0beacx8c68eb5a9d5189bckeb65d5e306427oe6",
        "address": "3E8WKmTJzaTsBc4kvuEJVjPNtak6vQRcRv",
        "confirmations": 2
      }
    }
  ],
  "id": 7655
}

Method: get_transactions

All parameters are optional.

Parameters:

Name	Type	Description
from	DateTime	Interval initial value (inclusive).
till	DateTime	Interval end value (inclusive).
types	String	Comma-separated transaction types.
subtypes	String	Comma-separated transaction subtypes.
statuses	String	Comma-separated transaction statuses. Accepted values: CREATED, PENDING, FAILED, SUCCESS, ROLLED_BACK
currencies	String	Comma-separated currency codes.
id_from	Number	Index interval initial value. Accepted values: 0 or greater
id_till	Number	Index interval end value. Accepted values: 0 or greater
tx_ids	String	Comma-separated transaction identifiers.
order_by	String	Defines order type. Accepted values: created_at, id Default value: created_at
sort	String	Sort direction. Accepted values: DESC, ASC Default value: DESC
limit	Number	Default value: 100 Maximum value: 1000
offset	Number	Default value: 0 Maximum value: 100000

Errors

The Crosstower API uses the following error codes:

Error code	HTTP Status Code	Message	Note
400	400	Bad request	The request contains values that cannot be processed.
429	429	Too many requests	Action is being rate limited for the account.
500	500	Internal Server Error	The request cannot be fulfilled at the moment. Try submitting the request later.
503	503	Service Unavailable	Try sending the request again later.
504	504	Gateway Timeout	Check the result of a request later.
600	400	Action not allowed	Operation is not permitted. See the message field for more information.
601	400	The recipient's address is not on the whitelist	The whitelist has been activated. Any address that is not added there cannot be used.
602	400	Payout blacklisted	Try sending crypto later. See the message field for the exact timing.
604	400	Payout amount bigger than locked amount	Provide a smaller payout amount.
800	404	Resource Not Found	Check the submitted parameters to ensure they were entered correctly.
1002	401	Authorization required or has been failed	Check that authorization data were provided.
1003	403	Action forbidden for this API key	Check permissions for API key, whitelists, or any security feature that might block this request.
1004	401	Unsupported authorization method	Use a valid authentication method.
1005	401	Authorization is invalid	The device has not been recognized. Use a valid authorization token.
1006	400	Should upgrade scopes	Check permission scopes.
2001	400	Symbol not found	The symbol code does not exist. Use GET /api/3/public/symbol to get the list of all available symbols.
2002	400	Currency not found	The currency code does not exist or is not enabled on a platform. See the message field for more information.
2003	400	Unknown channel	The channel name value is incorrect.
2010	400	Quantity not a valid number	Quantity value has to be a positive number.
2011	400	Quantity too low	Quantity value has to be more than or equal to the quantity_increment parameter value of a symbol.
2012	400	Bad quantity	Pass the quantity value that can be divided by the quantity_increment value of the selected symbol with no remainder.
2020	400	Price not a valid number	Price value has to be a positive number no less than the tick_size value of the selected symbol.
2022	400	Bad price	Pass the price value that can be divided by the tick_size value of the selected symbol with no remainder.
10001	400	Validation error	Input is not valid or the number of orders in an order list is incorrect. See the message field for more information.
10021	400	User disabled	Either a wrong input format or a sub account is frozen or disabled.
20001	400	Insufficient funds	Insufficient funds for creating an order, placing an order list, or any account operations. Check that the funds are sufficient, given commissions.
20002	400	Order not found	Attempt to get an active order that does not exist or is filled, canceled, expired. Attempt to cancel a non-existing order. Attempt to cancel an already filled or expired order.
20003	400	Limit exceeded	Pass a lower limit value. See the message field for more information.
20004	400	Transaction not found	Requested transaction was not found.
20005	400	Payout not found	Check the submitted parameters.
20006	400	Payout already committed	Operation cannot be performed since the payout has already been committed.
20007	400	Payout already rolled back	Operation cannot be performed since the payout has already been rolled back.
20008	400	Duplicate clientOrderId	An order with the submitted ID already exists.
20009	400	Price and quantity not changed	The order has not been changed. Enter a new price/quantity to fix the error.
20010	400	Exchange temporary closed	Exchange market is temporary closed on the symbol.
20011	400	Payout address is invalid	Check the payout address format.
20012	400	Payout payment address is invalid	Check the payment ID format.
20014	400	Payout offchain unavailable	Address does not belong to exchange, belongs to the same user, or is unavailable for currency.
20016	400	Payout fee level invalid	Submit a valid fee value.
20044	400	Trading operation not allowed	Platform is unavailable.
20045	400	Fat finger limit exceeded	Order price differs from the market price more than for 10% (for stopLimit and takeProfitLimit orders, the restriction is also applied to the difference between the stop price and the limit price). Fix the value and re-submit the request.
20080	400	Internal order execution deadline exceeded	Order was not placed.
20081	404	Provider not found	Provider with the submitted parameters cannot be found.
20082	404	Source currency not found	Source currency submitted does not exist. Check the currency value or select another currency when creating an order.
20083	404	Target currency not found	Target currency submitted does not exist. Check the currency value or select another currency when creating an order.
20084	400	Source currency disabled	Source currency has been disabled in the system. Select another currency to create an order.
20085	400	Target currency disabled	Target currency has been disabled in the system. Select another currency to create an order.
20086	404	Payment method not found	Submitted payment method does not exist. Provide an existing payment method value.
20087	400	Payment methods is inactive	Submitted payment method is unavailable. Select another payment method.
20088	400	Source amount is invalid	Provide a string type float value as a source amount.
20090	403	KYC Required	Feature is available only after passing the identity verification (KYC) procedure.
21001	404	Cannot find sub account	A sub account with the specified ID cannot be found in the system.
21003	400	Sub account is already frozen	Operation cannot be performed since the sub account has already been frozen.
21004	400	Sub account is already frozen or disabled	Operation cannot be performed since the sub account has already been frozen or disabled.
22000	404	Payment icon is not found	Check whether the payment method icon with the passed parameters exist.
22002	400	Icon already set for payment type	Impossible to set a new payment method icon until the existing one is unset.
22003	404	User does not have a bank account	The user cannot commit operations requiring a bank account.
22004	404	User is not found	Check if the functionality is accessable.
22005	400	Source amount is less than minimum	Pass a larger source amount.
22006	400	Source amount is more than maximum	Pass a smaller source amount.
22007	400	Currency is disabled	Impossible to perform the request with the passed currency value.