ABOUT Mycelium API

Mycelium REST & Streaming API version 2.0 provides programmatic access to Mycelium’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 3.0 documentation available on API v3.

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

DEVELOPMENT GUIDE

API Explorer

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

API URLs


REST	https://api.cryptoexchange.mycelium.com/api/2
Streaming Market Data	wss://api.cryptoexchange.mycelium.com/api/2/ws/public
Streaming Trading	wss://api.cryptoexchange.mycelium.com/api/2/ws/trading
Streaming Account	wss://api.cryptoexchange.mycelium.com/api/2/ws/account

DateTime Format

All timestamps are returned in ISO 8601 format (UTC).
Example: "2017-04-03T10:20:49.315Z"

Number Format

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

Pagination

Parameters:

Parameter	Description
limit	Number of results per call Accepted range: 0 - 1000 Default value: 100
offset	Number of results offset Default value: 0
sort	Sort direction Accepted values: `ASC` (ascending order), `DESC` (descending order) Default value: `DESC`
by	Defines filter type Accepted values: `id`, `timestamp`
from	Interval initial value (optional parameter) If filter by `timestamp` is used, then parameter type is `datetime`, otherwise `object id`
till	Interval end value (optional parameter) If filter by `timestamp` is used, then parameter type is `datetime`, otherwise `object id`

RATE LIMITING

The following Rate Limits are applied:

For the Market data, the limit is 100 requests per second for one IP;
For Trading, the limit is 300 requests per second for one user;
For other requests, including Trading history, the limit is 10 requests per second for one user.

Significantly exceeding the Rate Limits can lead to suspension.

CHANGELOG

02.11.2023

Added support of multichain that allows specifying a combination of a currency and a base blockchain:

GET /account/crypto/estimate-withdraw:
- added networkCode request parameter.
POST /account/crypto/withdraw:
- added networkCode request parameter.
GET /account/crypto/address/{currency}:
- added networkCode request parameter;
- added networkCode response field.
POST /account/crypto/address/{currency}:
- added networkCode request parameter;
- added networkCode response field.
GET /account/crypto/addresses/{currency}:
- added networkCode request parameter;
- added networkCode response field.
GET /account/crypto/used-addresses/{currency}:
- added networkCode request parameter.
GET /sub-acc/deposit-address/{subAccountUserID}/{currency}:
- added networkCode request parameter;
- added networkCode response field.
GET /buy-crypto/provider/{providerId}/order:
- added targetNetworkCode request parameter.
POST /buy-crypto/provider/{providerId}/order:
- added targetNetworkCode request parameter.
GET /buy-crypto/provider:
- added networkCode response field in supportedSource, supportedTarget, and transactionLimits objects.
GET /account/crypto/address:
- added networkCode response field.

06.07.2020

New account streaming endpoint /api/2/ws/account

06.07.2020

Margin trading feature available over REST and socket API
New market data only streaming endpoint /api/2/ws/public
New trading only streaming endpoint /api/2/ws/trading
Single streaming location /api/2/ws is deprecated

BEST PRACTICES

The Mycelium 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 your request.

Keep-Alive is a part of the HTTP 1.1 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 your 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 for API key
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

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

Example of error response:

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

Market data

Currencies

Get a list of all currencies or specified currencies

curl "https://api.cryptoexchange.mycelium.com/api/2/public/currency"

The above command returns JSON structured like this:

[
   {
      "id": "BTC",
      "fullName": "Bitcoin",
      "crypto": true,
      "payinEnabled": true,
      "payinPaymentId": false,
      "payinConfirmations": 2,
      "payoutEnabled": true,
      "payoutIsPaymentId": false,
      "transferEnabled": true,
      "delisted": false,
      "payoutFee": "0.00958",
      "payoutMinimalAmount": "0.00958",
      "precisionPayout": 10,
      "precisionTransfer": 10
   },
   {
      "id": "ETH",
      "fullName": "Ethereum",
      "crypto": true,
      "payinEnabled": true,
      "payinPaymentId": false,
      "payinConfirmations": 2,
      "payoutEnabled": true,
      "payoutIsPaymentId": false,
      "transferEnabled": true,
      "delisted": false,
      "payoutFee": "0.001",
      "payoutMinimalAmount": "0.00958",
      "precisionPayout": 20,
      "precisionTransfer": 15,
      "lowProcessingTime": "3.518",
      "highProcessingTime": "2411.963",
      "avgProcessingTime": "247.1108947"
   }
]

GET /api/2/public/currency

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

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

Requires no API key Access Rights.

Parameter:

Name	Type	Description
currencies	String	Comma-separated list of currency codes. Optional parameter

Responses:

Name	Type	Description
id	String	Currency identifier (code), for example, ''BTC'' Note: description will simply use `currency` in the future.
fullName	String	Currency full name, for example, ''Bitcoin''
crypto	Boolean	Determines whether currency belongs to blockchain
payinEnabled	Boolean	Determines whether it is allowed to generate addresses for a deposit
payinPaymentId	Boolean	Determines whether it is required to provide additional information other than the address for deposit
payinConfirmations	Number	Count of blocks confirmations, which are needed for deposit
payoutEnabled	Boolean	Determines whether withdraw is allowed
payoutIsPaymentId	Boolean	Determines whether providing of additional information for withdraw is allowed
transferEnabled	Boolean	Determines whether transfer between trading account and bank account is allowed (may be disabled on maintenance)
delisted	Boolean	`true` if currency is delisted (deposit and trading are stopped)
payoutFee	Number	Default withdraw fee
payoutMinimalAmount	Number	Minimum withdraw amount
precisionPayout	Number	Currency precision for payout (number of digits after the decimal point)
precisionTransfer	Number	Currency precision for transfer (number of digits after the decimal point)
lowProcessingTime	Number	The lowest processing time in seconds for payout operation. Optional parameter
highProcessingTime	Number	The highest processing time in seconds for payout operation. Optional parameter
avgProcessingTime	Number	The average processing time in seconds for payout operation. Optional parameter

Get a certain currency

curl "https://api.cryptoexchange.mycelium.com/api/2/public/currency/ETH"

The above command returns JSON structured like this:

{
  "id": "ETH",
  "fullName": "Ethereum",
  "crypto": true,
  "payinEnabled": true,
  "payinPaymentId": false,
  "payinConfirmations": 20,
  "payoutEnabled": true,
  "payoutIsPaymentId": false,
  "transferEnabled": true,
  "delisted": false,
  "payoutFee": "0.042800000000",
  "payoutMinimalAmount": "0.00958",
  "precisionPayout": 10,
  "precisionTransfer": 10,
  "lowProcessingTime": "3.518",
  "highProcessingTime": "2411.963",
  "avgProcessingTime": "247.1108947"
}

GET /api/2/public/currency/{currency}

Returns the data for a certain currency.

Requires no API key Access Rights.

Responses:

Name	Type	Description
id	String	Currency identifier (code), for example, ''BTC'' Note: description will simply use `currency` in the future.
fullName	String	Currency full name, for example, ''Bitcoin''
crypto	Boolean	Determines whether currency belongs to blockchain
payinEnabled	Boolean	Determines whether it is allowed to generate addresses for a deposit
payinPaymentId	Boolean	Determines whether it is required to provide additional information other than the address for deposit
payinConfirmations	Number	Count of blocks confirmations, which are needed for deposit
payoutEnabled	Boolean	Determines whether withdraw is allowed
payoutIsPaymentId	Boolean	Determines whether providing of additional information for withdraw is allowed
transferEnabled	Boolean	Determines whether transfer between trading account and bank account is allowed (may be disabled on maintenance)
delisted	Boolean	`true` if currency is delisted (deposit and trading are stopped)
payoutFee	Number	Default withdraw fee
payoutMinimalAmount	Number	Minimum withdraw amount
precisionPayout	Number	Currency precision for payout (number of digits after the decimal point)
precisionTransfer	Number	Currency precision for transfer (number of digits after the decimal point)
lowProcessingTime	Number	The lowest processing time in seconds for payout operation. Optional parameter
highProcessingTime	Number	The highest processing time in seconds for payout operation. Optional parameter
avgProcessingTime	Number	The average processing time in seconds for payout operation. Optional parameter

Symbols

Get a list of all symbols or specified symbols

curl "https://api.cryptoexchange.mycelium.com/api/2/public/symbol"

The above command returns JSON structured like this:

[      
  {
    "id": "ETHBTC",
    "baseCurrency": "ETH",
    "quoteCurrency": "BTC",
    "quantityIncrement": "0.001",
    "tickSize": "0.000001",
    "takeLiquidityRate": "0.001",
    "provideLiquidityRate": "-0.0001",
    "feeCurrency": "BTC",
    "marginTrading": true,
    "maxInitialLeverage": "10.00"
  }
]

GET /api/2/public/symbol

Return 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 comma-separated list of symbols. If it is not provided, null or empty, the request returns all symbols.

Requires no API key Access Rights.

Parameter:

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

Responses:

Name	Type	Description
id	String	Symbol (currency pair) identifier, for example, ''ETHBTC'' Note: description will simply use `symbol` in the future.
baseCurrency	String	Name (code) of base currency, for example, ''ETH''
quoteCurrency	String	Name of quote currency
quantityIncrement	Number	Symbol quantity should be divided by this value with no remainder
tickSize	Number	Symbol price should be divided by this value with no remainder
takeLiquidityRate	Number	Default fee rate
provideLiquidityRate	Number	Default fee rate for market making trades
feeCurrency	String	Value of charged fee
marginTrading	Boolean	Is margin trading available. Optional parameter
maxInitialLeverage	Number	Maximum leverage that user can use for margin trading. Optional parameter

Get a certain symbol

curl "https://api.cryptoexchange.mycelium.com/api/2/public/symbol/ETHBTC"

The above command returns JSON structured like this:

{
  "id": "ETHBTC",
  "baseCurrency": "ETH",
  "quoteCurrency": "BTC",
  "quantityIncrement": "0.0001",
  "tickSize": "0.000001",
  "takeLiquidityRate": "0.002",
  "provideLiquidityRate": "0.001",
  "feeCurrency": "BTC",
  "marginTrading": true,
  "maxInitialLeverage": "10.00"
}

GET /api/2/public/symbol/{symbol}

Returns the data for a certain symbol.

Requires no API key Access Rights.

Responses:

Name	Type	Description
id	String	Symbol (currency pair) identifier, for example, ''ETHBTC'' Note: description will simply use `symbol` in the future.
baseCurrency	String	Name (code) of base currency, for example, ''ETH''
quoteCurrency	String	Name of quote currency
quantityIncrement	Number	Symbol quantity should be divided by this value with no remainder
tickSize	Number	Symbol price should be divided by this value with no remainder
takeLiquidityRate	Number	Default fee rate
provideLiquidityRate	Number	Default fee rate for market making trades
feeCurrency	String	Value of charged fee
marginTrading	Boolean	Is margin trading available. Optional parameter
maxInitialLeverage	Number	Maximum leverage that user can use for margin trading. Optional parameter

Tickers

Get tickers for all symbols or for specified symbols

curl "https://api.cryptoexchange.mycelium.com/api/2/public/ticker"

The above command returns JSON structured like this:

[
  {
    "ask": "0.050043",
    "bid": "0.050042",
    "last": "0.050042",
    "open": "0.047800",
    "low": "0.047052",
    "high": "0.051679",
    "volume": "36456.720",
    "volumeQuote": "1782.625000",
    "timestamp": "2017-05-12T14:57:19.999Z",
    "symbol": "ETHBTC"
 }
]

GET /api/2/public/ticker

Returns ticker information.

You can optionally use 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.

Parameter:

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

Responses:

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
open	Number or null	Last trade price 24 hours ago. Can return 'null' if no data
low	Number	Lowest trade price within 24 hours
high	Number	Highest trade price within 24 hours
volume	Number	Total trading amount within 24 hours in base currency
volumeQuote	Number	Total trading amount within 24 hours in quote currency
timestamp	Datetime	Last update or refresh ticker timestamp
symbol	String	Symbol name

Get ticker for a certain symbol

curl "https://api.cryptoexchange.mycelium.com/api/2/public/ticker/ETHBTC"

The above command returns JSON structured like this:

{
  "symbol": "ETHBTC",
  "ask": "0.020572",
  "bid": "0.020566",
  "last": "0.020574",
  "open": "0.020913",
  "low": "0.020388",
  "high": "0.021084",
  "volume": "138444.3666",
  "volumeQuote": "2853.6874972480",
  "timestamp": "2020-04-02T17:52:36.731Z"
}

GET /api/2/public/ticker/{symbol}

Returns the ticker for a certain symbol.

Requires no API key Access Rights.

Responses:

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
open	Number or null	Last trade price 24 hours ago. Can return 'null' if no data
low	Number	Lowest trade price within 24 hours
high	Number	Highest trade price within 24 hours
volume	Number	Total trading amount within 24 hours in base currency
volumeQuote	Number	Total trading amount within 24 hours in quote currency
timestamp	Datetime	Last update or refresh ticker timestamp
symbol	String	Symbol name

Trades

Get trades for all symbols or for specified symbols

curl "https://api.cryptoexchange.mycelium.com/api/2/public/trades"

The above command returns JSON structured like this:

{
   "BTCUSD":[
      {
         "id":782135488,
         "price":"9793.94",
         "quantity":"0.21469",
         "side":"sell",
         "timestamp":"2020-02-24T12:54:41.972Z"
      }
   ],
   "ETHBTC":[
      {
         "id":782135414,
         "price":"0.027668",
         "quantity":"0.069",
         "side":"buy",
         "timestamp":"2020-02-24T12:54:32.843Z"
      }
   ]
}

GET /api/2/public/trades

Returns trades information for a symbol with a symbol Id.

You can optionally use 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.

Parameters:

Name	Type	Description
sort	String	Sort direction Accepted values: `ASC`, `DESC` Default value: `DESC`
from	Datetime or Number	Interval initial value (optional parameter) If sorting by `timestamp` is used, then `Datetime`, otherwise `Number` of index value
till	Datetime or Number	Interval end value (optional parameter) If sorting by `timestamp` is used, then `Datetime`, otherwise `Number` of index value
limit	Number	Default value: 100 Max value: 1000
offset	Number	Default value: 0 Max value: 100000
symbols	String	Comma-separated list of symbol codes. Optional parameter

Responses:

Name	Type	Description
id	Number	Trade identifier
price	Number	Trade price
quantity	Number	Trade quantity
side	String	Trade side Accepted values: `sell` or `buy`
timestamp	Datetime	Trade timestamp

Get trades for a certain symbol

curl "https://api.cryptoexchange.mycelium.com/api/2/public/trades/ETHBTC?sort=DESC"

The above command returns JSON structured like this:

[
  {
    "id": 9533117,
    "price": "0.046001",
    "quantity": "0.220",
    "side": "sell",
    "timestamp": "2017-04-14T12:18:40.426Z"
  },
  {
    "id": 9533116,
    "price": "0.046002",
    "quantity": "0.022",
    "side": "buy",
    "timestamp": "2017-04-14T11:56:37.027Z"
  }
]

GET /api/2/public/trades/{symbol}

Returns trades information for a symbol with a symbol Id.

Requires no API key Access Rights.

Parameters:

Name	Type	Description
sort	String	Sort direction Accepted values: `ASC`, `DESC` Default value: `DESC`
by	String	Defines filter type Accepted values: `id`, `timestamp` Default value: `timestamp`
from	Datetime or Number	Interval initial value (optional parameter) If sorting by `timestamp` is used, then `Datetime`, otherwise `Number` of index value
till	Datetime or Number	Interval end value (optional parameter) If sorting by `timestamp` is used, then `Datetime`, otherwise `Number` of index value
limit	Number	Default value: 100 Max value: 1000
offset	Number	Default value: 0 Max value: 100000

Responses:

Name	Type	Description
id	Number	Trade identifier
price	Number	Trade price
quantity	Number	Trade quantity
side	String	Trade side Accepted values: `sell` or `buy`
timestamp	Datetime	Trade timestamp

Order Book

Get Order Book for all symbols or for specified symbols

curl "https://api.cryptoexchange.mycelium.com/api/2/public/orderbook"

The above command returns JSON structured like this:

{
  "BTCUSD": {
    "symbol": "BTCUSD",
    "ask": [
      {
        "price": "9777.51",
        "size": "4.50579"
      },
      {
        "price": "9777.52",
        "size": "5.79832"
      }
    ],
    "bid": [
      {
        "price": "9777.5",
        "size": "0.00002"
      },
      {
        "price": "9776.26",
        "size": "0.0001"
      }
    ],
    "timestamp": "2020-02-11T11:18:03.857366871Z"
  },
  "ETHBTC": {
    "symbol": "ETHBTC",
    "ask": [
      {
        "price": "0.022626",
        "size": "0.0057"
      },
      {
        "price": "0.022628",
        "size": "1.4259"
      }
    ],
    "bid": [
      {
        "price": "0.022624",
        "size": "0.5748"
      },
      {
        "price": "0.022623",
        "size": "26.5"
      }
    ],
    "timestamp": "2020-02-11T11:18:03.790858502Z"
  }
}

GET /api/2/public/orderbook

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

You can optionally use 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
limit	Number	Limit of Order Book levels Default value: 100 Set 0 to view full list of Order Book levels.
symbols	String	Comma-separated list of symbol codes. Optional parameter

Responses:

Name	Type	Description
ask	Array	Ask side array of levels
bid	Array	Bid side array of levels
size	Number	Total volume of orders with the specified price
price	Number	Price level

Get Order Book for a certain symbol

curl "https://api.cryptoexchange.mycelium.com/api/2/public/orderbook/ETHBTC?volume=0.5"

The above command returns JSON structured like this:

{
  "ask": [
    {
      "price": "9779.68",
      "size": "2.497"
    }
  ],
  "bid": [
    {
      "price": "9779.67",
      "size": "0.03719"
    },
    {
      "price": "9779.29",
      "size": "0.171"
    },
    {
      "price": "9779.27",
      "size": "0.171"
    },
    {
      "price": "9779.21",
      "size": "0.171"
    }
  ],
  "timestamp": "2020-02-11T11:30:38.597950917Z",
  "askAveragePrice": "9779.68",
  "bidAveragePrice": "9779.29"
}

GET /api/2/public/orderbook/{symbol}

The request returns an Order Book for a certain symbol.

Requires no API key Access Rights.

Parameters:

Name	Type	Description
limit	Number	Limit of Order Book levels Default value: 100 Set 0 to view full list of Order Book levels.
volume	Number	Desired volume for market depth search

Please note that if the Volume is specified, the Limit will be ignored, askAveragePrice and bidAveragePrice are returned in response.

Responses:

Name	Type	Description
ask	Array	Ask side array of levels
bid	Array	Bid side array of levels
size	Number	Total volume of orders with the specified price
price	Number	Price level
askAveragePrice	Number	Average aggregated price for the ask side orders
bidAveragePrice	Number	Average aggregated price for the bid side orders

Candles

Get candles for all symbols or for specified symbols

curl "https://api.cryptoexchange.mycelium.com/api/2/public/candles"

The above command returns JSON structured like this:

{
   "BTCUSD":[
      {
         "timestamp":"2013-12-27T08:23:00.000Z",
         "open":"777",
         "close":"777",
         "min":"777",
         "max":"777",
         "volume":"0.1",
         "volumeQuote":"77.7"
      }
   ],
   "ETHBTC":[
      {
         "timestamp":"2015-08-20T19:01:00.000Z",
         "open":"0.006",
         "close":"0.006",
         "min":"0.006",
         "max":"0.006",
         "volume":"0.003",
         "volumeQuote":"0.000018"
      }
   ]
}

GET /api/2/public/candles

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

You can optionally use 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.

Parameters:

Name	Type	Description
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)
sort	String	Sort direction Accepted values: `ASC`, `DESC` Default value: `ASC`
from	Datetime	Interval initial value (optional parameter)
till	Datetime	Interval end value (optional parameter)
limit	Number	Limit of candles Default value: 100 Max value: 1000
offset	Number	Default value: 0 Max value: 100000
symbols	String	Comma-separated list of symbol codes. Optional parameter

Responses:

Name	Type	Description
timestamp	Datetime	Candle timestamp
open	Number	Open price
close	Number	Closing price
min	Number	Lowest price for the period
max	Number	Highest price for the period
volume	Number	Volume in base currency
volumeQuote	Number	Volume in quote currency

Get candles for a certain symbol

curl "https://api.cryptoexchange.mycelium.com/api/2/public/candles/ETHBTC"

The above command returns JSON structured like this:

[
  {
    "timestamp": "2017-10-20T20:00:00.000Z",
    "open": "0.050459",
    "close": "0.050087",
    "min": "0.050000",
    "max": "0.050511",
    "volume": "1326.628",
    "volumeQuote": "66.555987736"
  },
  {
    "timestamp": "2017-10-20T20:30:00.000Z",
    "open": "0.050108",
    "close": "0.050139",
    "min": "0.050068",
    "max": "0.050223",
    "volume": "87.515",
    "volumeQuote": "4.386062831"
  }
]

GET /api/2/public/candles/{symbol}

The request returns candles for a certain symbol.

Requires no API key Access Rights.

Parameters:

Name	Type	Description
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)
sort	String	Sort direction Accepted values: `ASC`, `DESC` Default value: `ASC`
from	Datetime	Interval initial value (optional parameter)
till	Datetime	Interval end value (optional parameter)
limit	Number	Limit of candles Default value: 100 Max value: 1000
offset	Number	Default value: 0 Max value: 100000

Responses:

Name	Type	Description
timestamp	Datetime	Candle timestamp
open	Number	Open price
close	Number	Closing price
min	Number	Lowest price for the period
max	Number	Highest price for the period
volume	Number	Volume in base currency
volumeQuote	Number	Volume in quote currency

Authentication

curl -u "publicKey:secretKey" https://api.cryptoexchange.mycelium.com/api/2/trading/balance

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

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

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

fetch('https://api.cryptoexchange.mycelium.com/api/2/trading/balance', {
    method: 'GET',
    headers: {
        'Authorization': 'Basic ' + credentials
    }
});

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.

Use Basic Authentication to access the REST API.

Authentication HS256

import requests
from requests.auth import AuthBase
from urllib.parse import urlparse
from base64 import b64encode
import hmac
import hashlib
import time


class HS256(AuthBase):
    def __init__(self, username, password):
        self.username = username
        self.password = password

    def __call__(self, r):
        url = urlparse(r.url)
        timestamp = str(int(time.time()))
        msg = r.method + timestamp + url.path
        if url.query != "":
            msg += "?" + url.query
        if r.body:
            msg += r.body

        signature = hmac.new(self.password.encode(), msg.encode(), hashlib.sha256).hexdigest()
        authstr = "HS256 " + b64encode(
                    b':'.join((self.username.encode(), timestamp.encode(), signature.encode()))).decode().strip()

        r.headers['Authorization'] = authstr
        return r

session = requests.session()
session.auth = HS256("publicKey", "secretKey")

balance = session.get("https://api.cryptoexchange.mycelium.com/api/2/trading/balance").json()
# or without session
balance = requests.get("https://api.cryptoexchange.mycelium.com/api/2/trading/balance", auth=HS256("publicKey", "secretKey")).json()

The alternative authentication method is the HMAC signature.

You should set header Authorization with publicKey and signature base64 encoded:

Create hmac signature with secretKey as a key and sign request "method+timestamp+url+body"
Like as basic authorization add header "Authorization: HS256 " + base64(publicKey+":"+timestamp+":"+signature hex encoded)

Trading

Trading Balance

curl -X GET -u "publicKey:secretKey" \
     "https://api.cryptoexchange.mycelium.com/api/2/trading/balance"

import requests
session = requests.session()
session.auth = ("publicKey", "secretKey")
b = session.get('https://api.cryptoexchange.mycelium.com/api/2/trading/balance').json()
print(b)

The above command returns JSON structured like this:

    [
      {
        "currency": "ETH",
        "available": "10.000000000",
        "reserved": "0.560000000"
      },
      {
        "currency": "BTC",
        "available": "0.010205869",
        "reserved": "0"
      }
    ]

GET /api/2/trading/balance

Returns the user's trading balance.

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

Responses:

Name	Type	Description
currency	String	Currency code
available	Number	Amount available for trading or transfer to main account
reserved	Number	Amount reserved for active orders or incomplete transfers to main account

Order model

Order model consists of:

Name	Type	Description
id	Number	Order unique identifier as assigned by exchange
clientOrderId	String	Order unique identifier as assigned by trader. Uniqueness must be guaranteed within a single trading day, including all active orders.
symbol	String	Trading symbol name
side	String	Trade side Accepted values: `sell` or `buy`
status	String	Order state Accepted values: `new`, `suspended`, `partiallyFilled`, `filled`, `canceled`, `expired`
type	String	Accepted values: `limit`, `market`, `stopLimit`, `stopMarket`
timeInForce	String	Time in Force is a special instruction used when placing a trade to indicate how long an order will remain active before it is executed or expired. GTC - ''Good-Till-Cancelled'' 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 cancelled. FOK - ''Fill-Or-Kill'' is a type of ''Time in Force'' designation used in securities trading that instructs a brokerage to execute a transaction immediately and completely or not execute it at all. Day - keeps the order active until the end of the trading day (UTC). GTD - ''Good-Till-Date''. The date is specified in `expireTime`.
quantity	Number	Order quantity
price	Number	Order price
avgPrice	Number	Average execution price, only for history orders
cumQuantity	Number	Cumulative executed quantity
createdAt	Datetime	Order creation date
updatedAt	Datetime	Date of order's last update
stopPrice	Number	Required for stop-limit and stop-market orders
postOnly	Boolean	A post-only order is an order that does not remove liquidity. If your post-only order causes a match with a pre-existing order as a taker, then the order will be cancelled.
expireTime	Datetime	Date of order expiration for `timeInForce` = `GTD`
tradesReport	Array of trades	Optional list of trades

{
  "id": 828680665,
  "clientOrderId": "f4307c6e507e49019907c917b6d7a084",
  "symbol": "ETHBTC",
  "side": "sell",
  "status": "partiallyFilled",
  "type": "limit",
  "timeInForce": "GTC",
  "quantity": "13.942",
  "price": "0.011384",
  "cumQuantity": "5.240",
  "createdAt": "2017-01-16T14:18:47.321Z",
  "updatedAt": "2017-01-19T15:23:54.876Z",
  "postOnly": false
}

Get active orders

curl -X GET -u "publicKey:secretKey" \
     "https://api.cryptoexchange.mycelium.com/api/2/order"

import requests
session = requests.session()
session.auth = ("publicKey", "secretKey")
b = session.get('https://api.cryptoexchange.mycelium.com/api/2/order').json()
print(b)

The above command returns JSON structured like this:

[
  {
    "id": 840450210,
    "clientOrderId": "c1837634ef81472a9cd13c81e7b91401",
    "symbol": "ETHBTC",
    "side": "buy",
    "status": "partiallyFilled",
    "type": "limit",
    "timeInForce": "GTC",
    "quantity": "0.020",
    "price": "0.046001",
    "cumQuantity": "0.005",
    "postOnly": false,
    "createdAt": "2017-05-12T17:17:57.437Z",
    "updatedAt": "2017-05-12T17:18:08.610Z"
  }
]

GET /api/2/order

Return array of active orders.

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

Parameters:

Name	Type	Description
symbol	String	Optional parameter to filter active orders by symbol

Response: Array of orders

Get active order by clientOrderId

curl -X GET -u "publicKey:secretKey" \
     "https://api.cryptoexchange.mycelium.com/api/2/order/c1837634ef81472a9cd13c81e7b91401"

import requests
session = requests.session()
session.auth = ("publicKey", "secretKey")
b = session.get('https://api.cryptoexchange.mycelium.com/api/2/order/c1837634ef81472a9cd13c81e7b91401').json()
print(b)

The above command returns JSON structured like this:

{
    "id": 840450210,
    "clientOrderId": "c1837634ef81472a9cd13c81e7b91401",
    "symbol": "ETHBTC",
    "side": "buy",
    "status": "partiallyFilled",
    "type": "limit",
    "timeInForce": "GTC",
    "quantity": "0.020",
    "price": "0.046001",
    "cumQuantity": "0.005",
    "postOnly": false,
    "createdAt": "2017-05-12T17:17:57.437Z",
    "updatedAt": "2017-05-12T17:18:08.610Z"
}

GET /api/2/order/{clientOrderId}

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

Parameters:

Name	Type	Description
wait	Number	Time in milliseconds (optional parameter) Max value: 60000 Default value: none While using long polling request: if order is filled, cancelled or expired order info will be returned instantly. For other order statuses, actual order info will be returned after specified wait time.

Response: order

Create new order

curl -X PUT -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/order/d8574207d9e3b16a4a5511753eeef175" \
    -d 'symbol=ETHBTC&side=sell&quantity=0.063&price=0.046016'

    import requests
    session = requests.session()
    session.auth = ("publicKey", "secretKey")
    orderData = {'symbol':'ethbtc', 'side': 'sell', 'quantity': '0.063', 'price': '0.046016' }
    r = session.post('https://api.cryptoexchange.mycelium.com/api/2/order', data = orderData)        
    print(r.json())

The above command returns JSON structured like this:

    {
        "id": 0,
        "clientOrderId": "d8574207d9e3b16a4a5511753eeef175",
        "symbol": "ETHBTC",
        "side": "sell",
        "status": "new",
        "type": "limit",
        "timeInForce": "GTC",
        "quantity": "0.063",
        "price": "0.046016",
        "cumQuantity": "0.000",
        "postOnly": false,
        "createdAt": "2017-05-15T17:01:05.092Z",
        "updatedAt": "2017-05-15T17:01:05.092Z"
    }

Error response example:

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

POST /api/2/order
PUT /api/2/order/{clientOrderId}

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

Price accuracy and quantity

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

Example of ETHBTC: tickSize = '0.000001', then price '0.046016' is valid, '0.0460165' is invalid.

Fees

Charged fee is determined in symbol's feeCurrency. Maker-taker fees offer a transaction rebate provideLiquidityRate to those who provide liquidity (the market maker), while charging customers who take that liquidity takeLiquidityRate.

To create buy orders, you must have sufficient balance including fees.
Available balance > price * quantity * (1 + takeLiquidityRate)

Order result status

For orders with timeInForce = IOC or FOK, the REST API returns final order state: filled or expired.

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

Parameters:

Name	Type	Description
clientOrderId	String	Optional parameter. If it is skipped, it will be generated by the Server. Uniqueness must be guaranteed within a single trading day, including all active orders.
symbol	String	Trading symbol
side	String	Trade side Accepted values: `sell` or `buy`
type	String	Optional parameter Accepted values: `limit`, `market`, `stopLimit`, `stopMarket` Default value: `limit`
timeInForce	String	Optional parameter Accepted values: `GTC`, `IOC`, `FOK`, `Day`, `GTD` Default value: `GTC`
quantity	Number	Order quantity
price	Number	Order price. Required for limit order types
stopPrice	Number	Required for stop-limit and stop-market orders
expireTime	Datetime	Required for orders with `timeInForce` = `GTD`
strictValidate	Boolean	Price and quantity will be checked for incrementation within the symbol’s tick size and quantity step. See the symbol's `tickSize` and `quantityIncrement`.
postOnly	Boolean	If your post-only order causes a match with a pre-existing order as a taker, then the order will be cancelled.
takeLiquidityMarkup	Number	Optional liquidity taker fee, a fraction of order volume, such as 0.001 (for 0.1% fee)
provideLiquidityMarkup	Number	Optional liquidity provider fee, a fraction of order volume, such as 0.001 (for 0.1% fee)

Response: order

Cancel orders

DELETE /api/2/order

Cancel all active orders, or all active orders for a specified symbol.

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

Parameters:

Name	Type	Description
symbol	String	Optional parameter to filter active orders by symbol

Response: Array of orders

Cancel order by clientOrderId

curl -X DELETE -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/order/d8574207d9e3b16a4a5511753eeef175"

The above command returns JSON structured like this:

{
  "id": 0,
  "clientOrderId": "d8574207d9e3b16a4a5511753eeef175",
  "symbol": "ETHBTC",
  "side": "sell",
  "status": "canceled",
  "type": "limit",
  "timeInForce": "GTC",
  "quantity": "0.000",
  "price": "0.046016",
  "cumQuantity": "0.000",
  "postOnly": false,
  "createdAt": "2017-05-15T17:01:05.092Z",
  "updatedAt": "2017-05-15T18:08:57.226Z"
}

Example of Order not found error response:

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

DELETE /api/2/order/{clientOrderId}

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

Response: order

Get trading commission

curl -X GET -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/trading/fee/ETHBTC"

The above command returns JSON structured like this:

{
  "takeLiquidityRate": "0.001",
  "provideLiquidityRate": "-0.0001"
}

GET /api/2/trading/fee/{symbol}

Get personal trading commission rate.

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

Trading history

Orders history

curl -X GET -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/history/order?symbol=ETHBTC"

[
  {
    "id": 828680665,
    "clientOrderId": "f4307c6e507e49019907c917b6d7a084",
    "symbol": "ETHBTC",
    "side": "sell",
    "status": "partiallyFilled",
    "type": "limit",
    "timeInForce": "GTC",
    "quantity": "13.942",
    "price": "0.011384",
    "avgPrice": "0.055487",
    "cumQuantity": "5.240",
    "createdAt": "2017-01-16T14:18:47.321Z",
    "updatedAt": "2017-01-19T15:23:54.876Z"
  },
  {
    "id": 828680667,
    "clientOrderId": "f4307c6e507e49019907c917b6d7a084",
    "symbol": "ETHBTC",
    "side": "sell",
    "status": "partiallyFilled",
    "type": "limit",
    "timeInForce": "GTC",
    "quantity": "13.942",
    "price": "0.011384",
    "avgPrice": "0.045000",
    "cumQuantity": "5.240",
    "createdAt": "2017-01-16T14:18:50.321Z",
    "updatedAt": "2017-01-19T15:23:56.876Z"
  }
]

GET /api/2/history/order

All orders older than 24 hours without trades are deleted.

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

Parameters:

Name	Type	Description
symbol	String	Optional parameter to filter orders by symbol.
clientOrderId	String	If set, other parameters will be ignored, including `limit` and `offset`.
from	Datetime	Interval initial value (optional parameter)
till	Datetime	Interval end value (optional parameter)
limit	Number	Default value: 100 Max value: 1000
offset	Number	Default value: 0 Max value: 100000

Response: Array of orders

Trades history

curl -X GET -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/history/trades?symbol=ETHBTC"

[
  {
    "id": 9535486,
    "orderId": 816088377,
    "clientOrderId": "f8dbaab336d44d5ba3ff578098a68454",
    "symbol": "ETHBTC",
    "side": "sell",
    "quantity": "0.061",
    "price": "0.045487",
    "fee": "0.000002775",
    "timestamp": "2017-05-17T12:32:57.848Z"
  },
  {
    "id": 9535437,
    "orderId": 816088021,
    "clientOrderId": "27b9bfc068b44194b1f453c7af511ed6",
    "symbol": "ETHBTC",
    "side": "buy",
    "quantity": "0.038",
    "price": "0.046000",
    "fee": "-0.000000174",
    "timestamp": "2017-05-17T12:30:57.848Z"
  }
]

GET /api/2/history/trades

Get the user's trading history.

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

Parameters:

Name	Type	Description
symbol	String	Optional parameter to filter active orders by symbol
sort	String	Sort direction Accepted values: `DESC`, `ASC` Default value: `DESC`
by	String	Defines filter type Accepted values: `timestamp`, `id`. Default value: `id`
from	Datetime or Number	Interval initial value (optional parameter) If sorting by `timestamp` is used, then `Datetime`, otherwise `Number` of index value.
till	Datetime or Number	Interval end value (optional parameter) If sorting by `timestamp` is used, then `Datetime`, otherwise `Number` of index value.
limit	Number	Default value: 100 Max value: 1000
offset	Number	Default value: 0 Max value: 100000
margin	String	Filtering of margin orders Accepted values: `include`, `only`, 'ignore' Default value: `include`

Responses:

Name	Type	Description
id	Number	Trade unique identifier as assigned by exchange
orderId	Number	Order unique identifier as assigned by exchange
clientOrderId	String	Order unique identifier as assigned by trader
symbol	String	Trading symbol
side	String	Trade side Accepted values: `sell` or `buy`
quantity	Number	Trade quantity
price	Number	Trade price
fee	Number	Trade commission Can be negative (''rebate'' - reward paid to a trader). See fee currency in the symbol config.
liquidation	Boolean	Optional parameter. Liquidation trade flag for margin trades
timestamp	Datetime	Trade timestamp
taker	Boolean	Instantly filled order flag

Trades by order

curl -X GET -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/history/order/816088021/trades"

[
  {
    "id": 828680665,
    "orderId": 816088021,
    "clientOrderId": "f4307c6e507e49019907c917b6d7a084",
    "symbol": "ETHBTC",
    "side": "sell",
    "status": "partiallyFilled",
    "type": "limit",
    "timeInForce": "GTC",
    "price": "0.011384",
    "quantity": "13.942",
    "postOnly": false,
    "cumQuantity": "5.240",
    "createdAt": "2017-01-16T14:18:47.321Z",
    "updatedAt": "2017-01-19T15:23:54.876Z"
  }
]

GET /api/2/history/order/{orderId}/trades

Returns the user's trading order with a specified orderId.

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

Parameters:

Name	Type	Description
orderId	Number	Order id

orderId is required in cause of clientOrderId can be non-unique during long period.

Responses:

Name	Type	Description
id	Number	Trade unique identifier as assigned by exchange
orderId	Number	Order unique identifier as assigned by exchange
clientOrderId	String	Order unique identifier as assigned by trader
symbol	String	Trading symbol
side	String	Trade side Accepted values: `sell` or `buy`
quantity	Number	Trade quantity
price	Number	Trade price
fee	Number	Trade commission Can be negative (''rebate'' - reward paid to a trader). See fee currency in the symbol config.
liquidation	Boolean	Optional parameter. Liquidation trade flag for margin trades
timestamp	Datetime	Trade timestamp
taker	Boolean	Instantly filled order flag

Account management

Account balance

curl -X GET -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/account/balance"

[
  {
    "currency": "BTC",
    "available": "0.0504600",
    "reserved": "0.0000000"
  },
  {
    "currency": "ETH",
    "available": "30.8504600",
    "reserved": "0.0000000"
  }
]

GET /api/2/account/balance

Returns the user's account balance.

Requires the "Payment information" API key Access Right.

Responses:

Name	Type	Description
currency	String	Currency code
available	Number	Amount available for withdraw or transfer to trading account
reserved	Number	Amount reserved for incomplete transactions

Deposit crypto address

curl -X GET -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/account/crypto/address/NXT"

{
  "address": "NXT-G22U-BYF7-H8D9-3J27W",
  "publicKey": "f79779a3a0c7acc75a62afe8125de53106c6a19c1ebdf92a3598676e58773df0"
}

GET /api/2/account/crypto/address/{currency} - Get current address

Requires the "Payment information" API key Access Right.

POST /api/2/account/crypto/address/{currency} - Create new address

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
networkCode	String	Optional parameter Network code

Responses:

Name	Type	Description
address	String	Address for deposit
paymentId	String	Optional parameter If this parameter is set, it is required for deposit.
publicKey	String	Optional parameter If this parameter is set, it is required for deposit.
networkCode	String	Optional parameter Network code

Last 10 deposit crypto address

curl -X GET -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/account/crypto/addresses/NXT"

[
  {
    "address": "NXT-G22U-BYF7-H8D9-3J27W",
    "publicKey": "f79779a3a0c7acc75a62afe8125de53106c6a19c1ebdf92a3598676e58773df0"
  }
]

GET /api/2/account/crypto/addresses/{currency} - Get last 10 deposit addresses for currency

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
networkCode	String	Optional parameter Network code

Responses:

Name	Type	Description
address	String	Address for deposit
paymentId	String	Optional If this field is presented, it is required for deposit.
publicKey	String	Optional If this field is presented, it is required for deposit.
networkCode	String	Optional parameter Network code

Last 10 used crypto address

curl -X GET -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/account/crypto/used-addresses/NXT"

[
  {
    "address": "NXT-G22U-BYF7-H8D9-3J27W",
    "paymentId": "f79779a3a0c7acc75a62afe8125de53106c6a19c1ebdf92a3598676e58773df0"
  }
]

GET /api/2/account/crypto/used-addresses/{currency} - Get last 10 unique addresses used for withdraw by currency

Note: used long ago addresses may be omitted, even if they are among last 10 unique addresses

Requires the "Payment information" API key Access Right.

Name	Type	Description
networkCode	String	Optional parameter Network code

Responses:

Name	Type	Description
address	String	Address identifier
paymentId	String	Optional parameter

Withdraw crypto

curl -X POST -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/account/crypto/withdraw" \
    -d 'currency=BTC&amount=0.001&address=example_address&autoCommit=false'

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

POST /api/2/account/crypto/withdraw

Requires the "Withdraw cryptocurrencies" API key Access Right.

Parameters:

Name	Type	Description
currency	String	Currency code
networkCode	String	Optional parameter Network code.
amount	Number	The amount that will be sent to the specified address
address	String	Address identifier
paymentId	String	Optional parameter
includeFee	Boolean	Default value: `false` If `true` is set, then total spent value will include fees.
autoCommit	Boolean	Default value: `true` If `false` is set, then you should commit or rollback transaction in an hour. Used in two phase commit schema.
publicComment	String	Optional parameter. Maximum length is 255

Responses:

Name	Type	Description
id	String	Transaction unique identifier as assigned by exchange

Transfer convert between currencies

curl -X POST -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/account/crypto/transfer-convert" \
    -d 'fromCurrency=USDT20&toCurrency=usd&amount=0.001'

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

POST /api/2/account/crypto/transfer-convert

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
fromCurrency	String	Currency code
toCurrency	String	Currency code
amount	Number	The amount that will be sent to the specified address

Responses:

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

Withdraw crypto commit or rollback

curl -X PUT -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/account/crypto/withdraw/d2ce578f-647d-4fa0-b1aa-4a27e5ee597b"

{
  "result": true
}

PUT /api/2/account/crypto/withdraw/{id} - Commit

DELETE /api/2/account/crypto/withdraw/{id} - Rollback

Requires the "Withdraw cryptocurrencies" API key Access Right.

Both methods are idempotent

Responses:

Name	Type	Description
result	Boolean	`True`, if request is completed

Estimate withdraw fee

curl -X GET -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/account/crypto/estimate-withdraw?currency=BTC&amount=0.01"

{
  "fee": "0.0008"
}

GET /api/2/account/crypto/estimate-withdraw

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
currency	String	Currency code
networkCode	String	Optional parameter Network code
amount	Number	Expected withdraw amount

Responses:

Name	Type	Description
fee	Number	Fee rate.

Estimate withdraw fee levels

curl -X GET -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/account/crypto/estimate-withdraw-levels?currency=BTC&amount=0.01"

[
  {
    "feeLevelId": 1,
    "comment": "",
    "fee": "0.0002",
    "isDefault": true
  }
]

GET /api/2/account/crypto/estimate-withdraw-levels

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
currency	String	Currency code
amount	Number	Expected withdraw amount

Responses:

Name	Type	Description
feeLevelId	Number	Fee level identifier.
comment	String	Text comment.
fee	String	Fee rate.
isDefault	Boolean	Flag indicating whether a fee level is default fee level.

Check if crypto address belongs to current account

curl -X GET -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/account/crypto/is-mine/1BvBMSEYstWetqTFn5Au4m4GFg7xJaNVN2"

{
  "result": true
}

GET /api/2/account/crypto/is-mine/{address}

Requires the "Payment information" API key Access Right.

Responses:

Name	Type	Description
result	Boolean	`True`, if address belongs to current account

Transfer money between trading account and bank account

curl -X POST -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/account/transfer" \
    -d "currency=eth&amount=0.01&type=bankToExchange"

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

POST /api/2/account/transfer

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 balances
type	String	Accepted values: `bankToExchange`, `exchangeToBank`

Responses:

Name	Type	Description
id	String	Transaction unique identifier as assigned by exchange

Transfer money to another user by email or username

curl -X POST -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/account/transfer/internal" \
    -d "by=email&identifier=user@example.com&currency=BTC&amount=0.001"

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

POST /api/2/account/transfer/internal

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	Accepted values: `email`, `username`
identifier	String	Identifier value. Either email or username

Responses:

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

Get transactions history

curl -X GET -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/account/transactions?currency=ETH&sort=DESC"

[
  {
    "id": "6a2fb54d-7466-490c-b3a6-95d8c882f7f7",
    "index": 20400458,
    "currency": "ETH",
    "amount": "38.616700000000000000000000",
    "fee": "0.000880000000000000000000",
    "address": "0xfaEF4bE10dDF50B68c220c9ab19381e20B8EEB2B",        
    "hash": "eece4c17994798939cea9f6a72ee12faa55a7ce44860cfb95c7ed71c89522fe8",
    "status": "pending",
    "type": "payout",
    "createdAt": "2017-05-18T18:05:36.957Z",
    "updatedAt": "2017-05-18T19:21:05.370Z"
  }
]

GET /api/2/account/transactions

GET /api/2/account/transactions/{id} - get transaction by transaction id

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
currency	String	Currency code
sort	String	Sort direction Accepted values: `DESC`, `ASC` Default value: `DESC`
by	String	Defines filter type Accepted values: `timestamp` or `index` Default value `timestamp`
from	Datetime or Number	Interval initial value (optional parameter) If sorting by `timestamp` is used, then `Datetime`, otherwise `Number` of index value.
till	Datetime or Number	Interval end value (optional parameter) If sorting by `timestamp` is used, then `Datetime`, otherwise `Number` of index value.
limit	Number	Default value: 100 Max value: 1000
offset	Number	Default value: 0 Max value: 100000
showSenders	Boolean	Default value: false Show senders addresses for payins

Responses:

Name	Type	Description
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 traded currency
fee	Number	Payment commission value
address	String	Address identifier
paymentId	String	Optional parameter
hash	String	Transaction hash
status	String	Accepted values: `created`, `pending`, `failed`, `success`
type	String	Accepted values: `payout` (crypto withdraw transaction), `payin` (crypto deposit transaction), `deposit`, `withdraw`, `bankToExchange`, `exchangeToBank`
subType	String	Optional parameter Currently accepted values: `swap` (swap between currencies), `offchain` (offchain transaction). Warning: possible subTypes list may be extended in future
senders	Array of String	senders for this payin transaction shown only for payins and showSenders = true
offchainId	Array of String	Transaction id of external system
confirmations	Number	Optional parameter Current count of confirmations for transaction in network
publicComment	String	Optional parameter
errorCode	String	Possible payout error reason: `INVALID_ADDRESS`, `INVALID_PAYMENT_ID`, `BAD_PRECISION`
createdAt	Datetime	Transaction creation date
updatedAt	Datetime	Date of transactions last update
commitRisk	Commit Risk	Optional. Deposit risk score info.

Commit Risk model consists of:

Name	Type	Description
score	Number	Risk score that decreases non-linearly when the transaction gains confirmations. Scores from 0 to 50 imply the transaction may be considered committed (but it is not guaranteed) or it may take at least half an hour otherwise. Possible values: `0` – `100`
rbf	Boolean	Flag indicating whether the transaction did not gain a sufficient number of confirmations and may be replaced by another one for an additional fee. This value indicates the transaction is complete and do not affect the score. `false` value along with a score above 50 gives a good chance that the transaction is irreversible.
lowFee	Boolean	Flag indicating whether the actual network fee is lower than the estimated one. This value indicates the difference between the estimated fee and the actual paid fee and do not affect the score.

Sub-accounts

Get sub-accounts list

curl -X GET -u "publicKey:secretKey" "https://api.cryptoexchange.mycelium.com/api/2/sub-acc"

The above command returns JSON structured like this:

{
  "result": [
    {"id": 7988900, "email": "user+1@example.com", "status": "active"},
    {"id": 7988906, "email": "user+2@example.com", "status": "active"},
    {"id": 7988909, "email": "user+3@example.com", "status": "disable"},
    {"id": 7988918, "email": "user+4@example.com", "status": "disable"},
    {"id": 7988921, "email": "user+5@example.com", "status": "disable"},
    {"id": 7989017, "email": "user+6@example.com", "status": "new"},
    {"id": 8001467, "email": "user+8@example.com", "status": "new"}
  ]
}

Error response example:

Failed authorization:

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

Empty sub-account's list:

{
  "result": []
}

GET /api/2/sub-acc

Returns list of sub-accounts per a super account.

Requires no API key Access Rights.

Responses:

Name	Type	Description
id	Number	Unique identifier of a sub-account.
email	String	Email address of a sub-account.
status	String	User status of a sub-account. Accepted values: `new`, `active`, `disable`.

Freeze sub-account

curl -X POST -u "publicKey:secretKey" "https://api.cryptoexchange.mycelium.com/api/2/sub-acc/freeze" \
    -d "ids=7988909"

The above command returns JSON structured like this:

{
  "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/2/sub-acc/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 form the Trading balance.

Requires no API key Access Rights.

Parameters:

Name	Type	Description
ids	Array	Sub-accounts' userIds separated by commas (,). Those could be obtained by `GET /api/2/sub-acc` request.

Responses:

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

Activate sub-account

curl -X POST -u "publicKey:secretKey" "https://api.cryptoexchange.mycelium.com/api/2/sub-acc/activate" \
    -d 'ids=7988909,7988918'

The above command returns JSON structured like this:

{
  "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",
    "description": "Param 'ids' required"
  }
}

Sub-accounts listed don't exist:

{
  "error": {
    "code": 500,
    "message": "Internal Server Error",
    "description": "Cannot find sub account 7988920"
  }
}

POST /api/2/sub-acc/activate

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

Requires no API key Access Rights.

Parameters:

Name	Type	Description
ids	Array	Sub-accounts' userIds separated by commas (,). Those could be obtained by `GET /api/2/sub-acc` request.

Responses:

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

Transfer funds

curl -X POST -u "publicKey:secretKey" "https://api.cryptoexchange.mycelium.com/api/2/sub-acc/transfer" \
    -d "subAccountId=7988900&amount=1&currency=BTC&type=deposit"

The above command returns JSON structured like this:

{
  "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": 500,
    "message": "Internal Server Error",
    "description": "Bad Request"
  }
}

Insufficient funds:

{
  "error": {
    "code": 20001,
    "message": "Internal Server Error",
    "description": "Bad Request"
  }
}

POST /api/2/sub-acc/transfer

Transfers funds from the master account to sub-account or from sub-account to the master account.

Requires the "Withdraw cryptocurrencies" API key Access Right.

Parameters:

Name	Type	Description
subAccountId	Number	Identifier of a sub-account to deposit/withdraw funds.
amount	Number	Amount of funds to transferred.
currency	String	Name (code) of base currency, for example, "BTC".
type	String	Type of transaction. Accepted values: `deposit`, `withdraw`.

Responses:

Name	Type	Description
result	String	Identifier of the transaction resulting.

Get withdrawal settings

curl -X GET -u "publicKey:secretKey" "https://api.cryptoexchange.mycelium.com/api/2/sub-acc/acl?subAccountIds=7988906"

The above command returns JSON structured like this:

{
    "result": [
      {
        "subAccountId": 7988906,
        "isPayoutEnabled": true,
        "description": ""
      }
    ]
}

Error response example:

Insufficient permissions:

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

Sub-account is frozen or disabled:

{
  "result": []
}

GET /api/2/sub-acc/acl

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

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type	Description
subAccountIds	Array	Sub-accounts' userIds separated by commas (,). Those could be obtained by `GET /api/2/sub-acc` request.

Responses:

Name	Type	Description
subAccountId	Number	Unique identifier of a sub-account.
isPayoutEnabled	Boolean	Value indicating, whether withdrawals are enabled (true) or not (false).
description	String	Textual description. Normally left empty.

Change withdrawal settings

curl -X PUT -u "publicKey:secretKey" "https://api.cryptoexchange.mycelium.com/api/2/sub-acc/acl/7988900"
    -d "isPayoutEnabled=false&description=spam"

The above command returns JSON structured like this:

{
  "result": [
    {
      "id": 7988900,
      "isPayoutEnabled": true,
      "description": "spam"
    }
  ]
}

Error response example:

Sub-account is frozen or disabled:

{
  "error": {
    "code": 10021,
    "message": "user disabled"
  }
}

Insufficient permissions:

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

PUT /api/2/sub-acc/acl/{subAccountUserId}

Disables or enables withdrawals for a sub-account.

Requires the "Payment information" API key Access Right.

Parameters:

Name	Type.	Description
isPayoutEnabled	Boolean	Value indicating the desired state of withdrawals.
description	String	Textual description.

Responses:

Name	Type	Description
subAccountId	Number	Unique identifier of a sub-account.
isPayoutEnabled	Boolean	Value indicating, whether withdrawals are enabled (true) or not (false). It must be equal to the value in a request.
description	String	Textual description. It duplicates the value in a request.

Get sub-account balance

curl -X GET -u "publicKey:secretKey" "https://api.cryptoexchange.mycelium.com/api/2/sub-acc/balance/7988900"

The above command returns JSON structured like this:

{
  "result": {
    "main": [
      {
        "currency": "1ST",
        "available": "0.0",
        "reserved": "0.0"
      }
    ],
    "trading": [
      {
        "currency": "1ST",
        "available": "0",
        "reserved": "0"
      }
    ]
  }
}

Error response example:

Insufficient permissions:

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

GET /api/2/sub-acc/balance/{subAccountUserID}

Returns balance values by sub-account ID specified. Report will include main account and Trading balances for each currency. It is functional with no regard to the state of a sub-account.

Requires the "Payment information" API key Access Right.

Get sub-account crypto address

curl -X GET -u "publicKey:secretKey" \
    "https://api.cryptoexchange.mycelium.com/api/2/sub-acc/deposit-address/7988900/NXT"

The above command returns JSON structured like this:

{
    "result": {
        "address": "NXT-G22U-BYF7-H8D9-3J27W",
        "publicKey": "f79779a3a0c7acc75a62afe8125de53106c6a19c1ebdf92a3598676e58773df0"
    }
}

GET /api/2/sub-acc/deposit-address/{subAccountUserId}/{currency}

Returns sub-account crypto address for currency.

Requires no API key Access Rights.

Parameters:

Name	Type	Description
networkCode	String	Optional parameter Network code

Responses:

Name	Type	Description
address	String	Address for deposit
paymentId	String	Optional parameter If this parameter is set, it is required for deposit.
publicKey	String	Optional parameter If this parameter is set, it is required for deposit.
networkCode	String	Optional parameter Network code

Errors

Error code	HTTP Status Code	Message	Note
10021	400	user disabled	Sub-account is frozen or disabled
500	500	Internal Server Error	Cannot find sub account `subAccountId`

Following errors are conventional:

Error code	HTTP Status Code	Message	Note
10001	400	Validation error	Param 'ids' required.
1003	403	Action is forbidden for this API key	Check Access Rights for API key.
20001	400	Insufficient funds	Insufficient funds for creating order or any account operation
1002	401	Authorization failed
504	504	Gateway Timeout	Check the result of your request later
503	503	Service Unavailable	Try it again later
1001	401	Authorization required
2001	400	Symbol not found
2002	400	Currency not found
600	400	Action is not allowed

Socket API Reference

Use JSON-RPC 2.0 over WebSocket connection as transport.

Request object

{
  "method": "newOrder",
  "params": {
    "clientOrderId": "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

{
  "jsonrpc": "2.0",
  "method": "updateTrades",
  "params": {
    "data": [
      {
        "id": 54469813,
        "price": "0.054670",
        "quantity": "0.183",
        "side": "buy",
        "timestamp": "2017-10-19T16:34:25.041Z"
      }
    ],
    "symbol": "ETHBTC"
  }
}

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

Server responses for each request. Response on success subscription is true. Example:

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

Response error

{
  "jsonrpc": "2.0",
  "error": {
    "code": 2001,
    "message": "Symbol not found",
    "description": "Try get /api/2/public/symbol, to get list of all available symbols."
  },
  "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

The parameters of requests, responses, and errors correspond to REST, but have different usage procedures.
First, you should subscribe for the required data. Then the Server will send a full snapshot of the data. After that, the Server sends an update notification.

Get Currencies

wscat -c wss://api.cryptoexchange.mycelium.com/api/2/ws

{
  "method": "getCurrency",
  "params": {
    "currency": "ETH"
  },
  "id": 123
}

Response

{
  "jsonrpc": "2.0",
  "result": {
    "id": "ETH",
    "fullName": "Ethereum",
    "crypto": true,
    "payinEnabled": true,
    "payinPaymentId": false,
    "payinConfirmations": 2,
    "payoutEnabled": true,
    "payoutIsPaymentId": false,
    "transferEnabled": true,
    "delisted": false,
    "payoutFee": "0.001",
    "payoutMinimalAmount": "0.00958",
    "precisionPayout": 10,
    "precisionTransfer": 10
  },
  "id": 123
}

Request:

wscat -c wss://api.cryptoexchange.mycelium.com/api/2/ws

{
  "method": "getCurrency",
  "params": {
    "currency": "ETH",
    "extended": true
  },
  "id": 123
}

Response

{
  "jsonrpc":"2.0",
  "id":123,
  "result": {
    "id":"ETH",
    "fullName":"Ethereum TST",
    "crypto":true,
    "payinEnabled":true,
    "payinPaymentId":false,
    "payinConfirmations":2,
    "payoutEnabled":true,
    "payoutIsPaymentId":false,
    "transferEnabled":true,
    "delisted":false,
    "payoutFee":"0.003783645118",
    "sign":"E",
    "cryptoPaymentIdName":"",
    "cryptoType":"crypto_address",
    "qrPrefix":"ethereum:",
    "cryptoExplorer":"https://www.etherchain.org/tx/{tx}",
    "isInstrumentsStable":false
  }
}

Request methods: getCurrencies,getCurrency

Parameters:

Name	Type	Description
currency	String	Currency code (for `getCurrency`) or currencies' codes separated by commas (for `getCurrencies`).
extended	Boolean	Value indicating whether the extented currency details are requested.

Get Symbols

wscat -c wss://api.cryptoexchange.mycelium.com/api/2/ws

{
  "method": "getSymbol",
  "params": {
    "symbol": "ETHBTC"
  },
  "id": 123
}

Response

{
  "jsonrpc": "2.0",
  "result": {
    "id": "ETHBTC",
    "baseCurrency": "ETH",
    "quoteCurrency": "BTC",
    "quantityIncrement": "0.001",
    "tickSize": "0.000001",
    "takeLiquidityRate": "0.001",
    "provideLiquidityRate": "-0.0001",
    "feeCurrency": "BTC"
  },
  "id": 123
}

Request methods: getSymbols,getSymbol

wscat -c wss://api.cryptoexchange.mycelium.com/api/2/ws

{
  "method": "subscribeTicker",
  "params": {
    "symbol": "ETHBTC"
  },
  "id": 123
}

Notification ticker

{
  "jsonrpc": "2.0",
  "method": "ticker",
  "params": {
    "ask": "0.054464",
    "bid": "0.054463",
    "last": "0.054463",
    "open": "0.057133",
    "low": "0.053615",
    "high": "0.057559",
    "volume": "33068.346",
    "volumeQuote": "1832.687530809",
    "timestamp": "2017-10-19T15:45:44.941Z",
    "symbol": "ETHBTC"
  }
}

Request methods: subscribeTicker, unsubscribeTicker

Notification method: ticker

wscat -c wss://api.cryptoexchange.mycelium.com/api/2/ws

{
  "method": "subscribeOrderbook",
  "params": {
    "symbol": "ETHBTC"
  },
  "id": 123
}

Notification snapshot

{
  "jsonrpc": "2.0",
  "method": "snapshotOrderbook",
  "params": {
    "ask": [
      {
        "price": "0.054588",
        "size": "0.245"
      },
      {
        "price": "0.054590",
        "size": "0.000"
      },
      {
        "price": "0.054591",
        "size": "2.784"
      }
    ],
    "bid": [
      {
        "price": "0.054558",
        "size": "0.500"
      },
      {
        "price": "0.054557",
        "size": "0.076"
      },
      {
        "price": "0.054524",
        "size": "7.725"
      }
    ],
    "symbol": "ETHBTC",
    "sequence": 8073827,    
    "timestamp": "2018-11-19T05:00:28.193Z"
  }
}

Notification update

{
  "jsonrpc": "2.0",
  "method": "updateOrderbook",
  "params": {    
    "ask": [
      {
        "price": "0.054590",
        "size": "0.000"
      },
      {
        "price": "0.054591",
        "size": "0.000"
      }
    ],
    "bid": [
      {
        "price": "0.054504",
         "size": "0.000"
      }
    ],
    "symbol": "ETHBTC",
    "sequence": 8073830,
    "timestamp": "2018-11-19T05:00:28.700Z"
  }
}

Request methods: subscribeOrderbook, unsubscribeOrderbook

Notification snapshot

Message contains a full snapshot of the Order Book.

sequence - same as updateOrderbook sequence field Notification method: snapshotOrderbook

Notification update

Message contains incremental changes.
size = 0 means that level has been deleted.
sequence is monotonically increased for each update, each symbol has its own sequence.
Notification method: updateOrderbook

wscat -c wss://api.cryptoexchange.mycelium.com/api/2/ws

{
  "method": "subscribeTrades",
  "params": {
    "symbol": "ETHBTC",
    "limit": 100
  },
  "id": 123
}

Request methods: subscribeTrades, unsubscribeTrades

Notification snapshot

{
  "jsonrpc": "2.0",
  "method": "snapshotTrades",
  "params": {
    "data": [
      {
        "id": 54469456,
        "price": "0.054656",
        "quantity": "0.057",
        "side": "buy",
        "timestamp": "2017-10-19T16:33:42.821Z"
      },
      {
        "id": 54469497,
        "price": "0.054656",
        "quantity": "0.092",
        "side": "buy",
        "timestamp": "2017-10-19T16:33:48.754Z"
      },
      {
        "id": 54469697,
        "price": "0.054669",
        "quantity": "0.002",
        "side": "buy",
        "timestamp": "2017-10-19T16:34:13.288Z"
      }
    ],
    "symbol": "ETHBTC"
  }
}

Notification method: snapshotTrades

Notification update

{
  "jsonrpc": "2.0",
  "method": "updateTrades",
  "params": {
    "data": [
      {
        "id": 54469813,
        "price": "0.054670",
        "quantity": "0.183",
        "side": "buy",
        "timestamp": "2017-10-19T16:34:25.041Z"
      }
    ],
    "symbol": "ETHBTC"
  }
}

Notification method: updateTrades

Get Trades

wscat -c wss://api.cryptoexchange.mycelium.com/api/2/ws

{
  "method": "getTrades",
  "params": {
    "symbol": "ETHBTC",
    "limit": 3,
    "sort": "DESC",
    "by": "id"
  },
  "id": 123
}

Response

{
  "jsonrpc": "2.0",
  "result": {
    "data": [
      {
        "id": 54472171,
        "price": "0.054443",
        "quantity": "2.213",
        "side": "sell",
        "timestamp": "2017-10-19T16:39:20.796Z"
      },
      {
        "id": 54472170,
        "price": "0.054453",
        "quantity": "0.030",
        "side": "sell",
        "timestamp": "2017-10-19T16:39:20.796Z"
      },
      {
        "id": 54472169,
        "price": "0.054454",
        "quantity": "0.052",
        "side": "sell",
        "timestamp": "2017-10-19T16:39:20.796Z"
      }
    ],
    "symbol": "ETHBTC"
  },
  "id": 123
}

Request method: getTrades

Parameters:

Name	Type	Description
symbol	String	Optional parameter to filter active orders by symbol
sort	String	Sort direction Accepted values: `DESC` or `ASC` Default value `DESC`
by	String	Defines filter type Accepted values: `timestamp` or `id` Default value: `timestamp`
from	Datetime or Number	Interval initial value (optional parameter) If sorting by `timestamp` is used, then `Datetime`, otherwise `Number` of index value.
till	Datetime or Number	Interval end value (optional parameter) If sorting by `timestamp` is used, then `Datetime`, otherwise `Number` of index value.
limit	Number	Default value: 100 Max value: 1000
offset	Number	Default value: 0 Max value: 100000

Request methods: subscribeCandles, unsubscribeCandles

wscat -c wss://api.cryptoexchange.mycelium.com/api/2/ws

{
  "method": "subscribeCandles",
  "params": {
    "symbol": "ETHBTC",
    "period": "M30",
    "limit": 100
  },
  "id": 123
}

Notification snapshot

{
  "jsonrpc": "2.0",
  "method": "snapshotCandles",
  "params": {
    "data": [
      {
        "timestamp": "2017-10-19T15:00:00.000Z",
        "open": "0.054801",
        "close": "0.054625",
        "min": "0.054601",
        "max": "0.054894",
        "volume": "380.750",
        "volumeQuote": "20.844237223"
      },
      {
        "timestamp": "2017-10-19T15:30:00.000Z",
        "open": "0.054616",
        "close": "0.054618",
        "min": "0.054420",
        "max": "0.054724",
        "volume": "348.527",
        "volumeQuote": "19.011854364"
      },
      {
        "timestamp": "2017-10-19T16:00:00.000Z",
        "open": "0.054587",
        "close": "0.054626",
        "min": "0.054408",
        "max": "0.054768",
        "volume": "194.014",
        "volumeQuote": "10.595416973"
      },
      {
        "timestamp": "2017-10-19T16:30:00.000Z",
        "open": "0.054614",
        "close": "0.054443",
        "min": "0.054339",
        "max": "0.054724",
        "volume": "141.213",
        "volumeQuote": "7.706358298"
      }
    ],
    "symbol": "ETHBTC",
    "period": "M30"
  }
}

Notification method: snapshotCandles

Notification update

{
  "jsonrpc": "2.0",
  "method": "updateCandles",
  "params": {
    "data": [
      {
        "timestamp": "2017-10-19T16:30:00.000Z",
        "open": "0.054614",
        "close": "0.054465",
        "min": "0.054339",
        "max": "0.054724",
        "volume": "141.268",
        "volumeQuote": "7.709353873"
      }
    ],
    "symbol": "ETHBTC",
    "period": "M30"
  }
}

Notification method: updateCandles

Socket Session Authentication

Example with BASIC algo:


wscat -c wss://api.cryptoexchange.mycelium.com/api/2/ws

{
  "method": "login",
  "params": {
    "algo": "BASIC",
    "pKey": "3ef4a9f8c8bf04bd8f09884b98403eae",
    "sKey": "2deb570ab58fd553a4ed3ee249fd2d51"
  }
}

Example with HS256 algo:


wscat -c wss://api.cryptoexchange.mycelium.com/api/2/ws

{
  "method": "login",
  "params": {
    "algo": "HS256",
    "pKey": "3ef4a9f8c8bf04bd8f09884b98403eae",
    "nonce": "N1g287gL8YOwDZr",
    "signature": "b1c0ae399c2d341866a214f7d3ed755b821c1c36fc6f17083ef05fbb55b7f986"
  }
}

Example with BEARER algo:


wscat -c wss://api.cryptoexchange.mycelium.com/api/2/ws

{
    "method": "login",
    "params": {
        "algo": "BEARER",
        "pKey": "3ef4a9f8c8bf04bd8f09884b98403eae",
        "jwt": "JWT"
    }
}

Request method: login

Params:

Name	Type	Description
algo	String	Encryption algorithm Accepted values: `BASIC`, `HS256`, or `BEARER`
pKey	String	API public key
sKey	String	API secret key, required on `BASIC` algo
nonce	String	Random string, required on `HS256` algo
signature	String	HMAC SHA256 sign nonce with API secret key, required on `HS256` algo
jwt	String	JWT bearer token. Credentials necessary to form the token are acquired through the Authentication Service, required on `BEARER` algo

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.

wscat -c wss://api.cryptoexchange.mycelium.com/api/2/ws

{
  "method": "subscribeReports",
  "params": {}
}

Notification with currently active orders

{
  "jsonrpc": "2.0",
  "method": "activeOrders",
  "params": [
    {
      "id": "4345613661",
      "clientOrderId": "57d5525562c945448e3cbd559bd068c3",
      "symbol": "BCCBTC",
      "side": "sell",
      "status": "new",
      "type": "limit",
      "timeInForce": "GTC",
      "quantity": "0.013",
      "price": "0.100000",
      "cumQuantity": "0.000",
      "postOnly": false,
      "createdAt": "2017-10-20T12:17:12.245Z",
      "updatedAt": "2017-10-20T12:17:12.245Z",
      "reportType": "status"
    }
  ]
}

Method: subscribeReports

Method: activeOrders

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

Notification report

{
  "jsonrpc": "2.0",
  "method": "report",
  "params": {
    "id": "4345697765",
    "clientOrderId": "53b7cf917963464a811a4af426102c19",
    "symbol": "ETHBTC",
    "side": "sell",
    "status": "filled",
    "type": "limit",
    "timeInForce": "GTC",
    "quantity": "0.001",
    "price": "0.053868",
    "cumQuantity": "0.001",
    "postOnly": false,
    "createdAt": "2017-10-20T12:20:05.952Z",
    "updatedAt": "2017-10-20T12:20:38.708Z",
    "reportType": "trade",
    "tradeQuantity": "0.001",
    "tradePrice": "0.053868",
    "tradeId": 55051694,
    "tradeFee": "-0.000000005"
  }
}

Method: report

Params:

Name	Type	Description
id	Number	Order unique identifier as assigned by exchange
clientOrderId	String	Order unique identifier as assigned by trader
symbol	String	Trading symbol
side	String	Trade side Accepted values: `sell`, `buy`
status	String	Accepted values: `new`, `suspended`, `partiallyFilled`, `filled`, `canceled`, `expired`
type	String	Accepted values: `limit`, `market`, `stopLimit`, `stopMarket`
timeInForce	String	Time in Force is a special instruction used when placing a trade to indicate how long an order will remain active before it is executed or expired. GTC - ''Good-Till-Cancel'' order won't close 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 cancelled. FOK - ''Fill-Or-Kill'' is a type of ''Time in Force'' designation used in securities trading that instructs a brokerage to execute a transaction immediately and completely or not execute it at all. Day - keeps the order active until the end of the trading day (UTC). GTD - ''Good-Till-Date''. The date is specified in `expireTime`.
quantity	Number	Order quantity
price	Number	Order price
cumQuantity	Number	Cumulative executed quantity
postOnly	Boolean	A post-only order is an order that does not remove liquidity. If your post-only order causes a match with a pre-existing order as a taker, then the order will be cancelled.
createdAt	Datetime	Report creation date
updatedAt	Datetime	Date of the report's last update
stopPrice	Number	Required for stop-limit and stop-market orders
expireTime	Datetime	Date of order expiration for `timeInForce` = `GTD`
reportType	String	Accepted values: `status`, `new`, `canceled`, `expired`, `suspended`, `trade`, `replaced`
tradeId	Number	Trade identifier. Required for `reportType` = `trade`
tradeQuantity	Number	Quantity of trade. Required for `reportType` = `trade`
tradePrice	Number	Trade price. Required for `reportType` = `trade`
tradeFee	Number	Fee paid for trade. Required for `reportType` = `trade`
originalRequestClientOrderId	String	Identifier of replaced order

Place new order

Request:

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

Success response:

{
  "jsonrpc": "2.0",
  "result": {
    "id": "4345947689",
    "clientOrderId": "57d5525562c945448e3cbd559bd068c4",
    "symbol": "ETHBTC",
    "side": "sell",
    "status": "new",
    "type": "limit",
    "timeInForce": "GTC",
    "quantity": "0.001",
    "price": "0.093837",
    "cumQuantity": "0.000",
    "postOnly": false,
    "createdAt": "2017-10-20T12:29:43.166Z",
    "updatedAt": "2017-10-20T12:29:43.166Z",
    "reportType": "new"
  },
  "id": 123
}

Example error response:

{
  "jsonrpc": "2.0",
  "error": {
    "code": 20001,
    "message": "Insufficient funds",
    "description": "Check that the funds are sufficient, given commissions"
  },
  "id": 123
}

Method: newOrder

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

Params:

Name	Type	Description
clientOrderId	String	Required parameter. Uniqueness must be guaranteed within a single trading day, including all active orders.
symbol	String	Trading symbol
side	String	Trade side. Accepted values: `sell`, `buy`
type	String	Optional parameter Accepted values: `limit`, `market`, `stopLimit`, `stopMarket` Default value: `limit`
timeInForce	String	Optional parameter Accepted values: `GTC`, `IOC`, `FOK`, `Day`, `GTD` Default value: `GTC`
quantity	Number	Order quantity
price	Number	Order price. Required for limit types
stopPrice	Number	Required for stop-limit and stop-market orders
expireTime	Datetime	Required for `timeInForce` = `GTD`
strictValidate	Boolean	Price and quantity will be checked for incrementation within the symbol's tick size and quantity step. See the symbol's `tickSize` and `quantityIncrement`
postOnly	Boolean	A post-only order is an order that does not remove liquidity. If your post-only order causes a match with a pre-existing order as a taker, then order will be cancelled.
closePosition	Boolean	Flag indicating a stop market order must close a margin position when executed or be canceled otherwise. Default: `false` Conditions: `quantity` is omitted.
takeLiquidityMarkup	Number	Optional liquidity taker fee, a fraction of order volume, such as 0.001 (for 0.1% fee)
provideLiquidityMarkup	Number	Optional liquidity provider fee, a fraction of order volume, such as 0.001 (for 0.1% fee)

Cancel order

Request:

{
  "method": "cancelOrder",
  "params": {
    "clientOrderId": "57d5525562c945448e3cbd559bd068c4"
  },
  "id": 123
}

Response:

{
  "jsonrpc": "2.0",
  "result": {
    "id": "4345947689",
    "clientOrderId": "57d5525562c945448e3cbd559bd068c4",
    "symbol": "ETHBTC",
    "side": "sell",
    "status": "canceled",
    "type": "limit",
    "timeInForce": "GTC",
    "quantity": "0.001",
    "price": "0.093837",
    "cumQuantity": "0.000",
    "postOnly": false,
    "createdAt": "2017-10-20T12:29:43.166Z",
    "updatedAt": "2017-10-20T12:31:26.174Z",
    "reportType": "canceled"
  },
  "id": 123
}

Method: cancelOrder

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

Cancel/Replace order

Request:

{
  "method": "cancelReplaceOrder",
  "params": {
    "clientOrderId": "9cbe79cb6f864b71a811402a48d4b5b1",
    "requestClientId": "9cbe79cb6f864b71a811402a48d4b5b2",
    "quantity": "0.002",
    "price": "0.083837"
  },
  "id": 123
}

Response:

{
  "jsonrpc": "2.0",
  "result": {
    "id": "4346371528",
    "clientOrderId": "9cbe79cb6f864b71a811402a48d4b5b2",
    "symbol": "ETHBTC",
    "side": "sell",
    "status": "new",
    "type": "limit",
    "timeInForce": "GTC",
    "quantity": "0.002",
    "price": "0.083837",
    "cumQuantity": "0.000",
    "postOnly": false,
    "createdAt": "2017-10-20T12:47:07.942Z",
    "updatedAt": "2017-10-20T12:50:34.488Z",
    "reportType": "replaced",
    "originalRequestClientOrderId": "9cbe79cb6f864b71a811402a48d4b5b1"
  },
  "id": 123
}

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: cancelReplaceOrder

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

Params:

Name	Type	Description
clientOrderId	String	Replaced order (required parameter)
requestClientId	String	`clientOrderId` for new order (required parameter) Uniqueness must be guaranteed within a single trading day, including all active orders.
quantity	Number	New order quantity
price	Number	New order price
strictValidate	Boolean	Price and quantity will be checked for the incrementation within tick size and quantity step. See symbol's `tickSize` and `quantityIncrement`

Get active orders

Request:

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

Response:

{
  "jsonrpc": "2.0",
  "result": [
    {
      "id": "4346371528",
      "clientOrderId": "9cbe79cb6f864b71a811402a48d4b5b2",
      "symbol": "ETHBTC",
      "side": "sell",
      "status": "new",
      "type": "limit",
      "timeInForce": "GTC",
      "quantity": "0.002",
      "price": "0.083837",
      "cumQuantity": "0.000",
      "postOnly": false,
      "createdAt": "2017-10-20T12:47:07.942Z",
      "updatedAt": "2017-10-20T12:50:34.488Z",
      "reportType": "replaced",
      "originalRequestClientOrderId": "9cbe79cb6f864b71a811402a48d4b5b1"
    }
  ],
  "id": 123
}

Method: getOrders

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

Get trading balance

Request:

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

Response:

{
  "jsonrpc": "2.0",
  "result": [
    {
      "currency": "BCN",
      "available": "100.000000000",
      "reserved": "0"
    },
    {
      "currency": "BTC",
      "available": "0.013634021",
      "reserved": "0"
    },
    {
      "currency": "ETH",
      "available": "0",
      "reserved": "0.00200000"
    }
  ],
  "id": 123
}

Method: getTradingBalance

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

Socket Account 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.

Subscription to the transactions

Method: subscribeTransactions and the corresponding unsubscription method: unsubscribeTransactions

Income method: updateTransaction

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 transaction polling.

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

A combination of the recovery mechanism and transaction subscription provides reliable and consistent information regarding transactions. For that, you should store the latest processed index and requested possible gap using a "loadTransactions" method after connecting or reconnecting the Websocket.

Subscription request:

{"method": "subscribeTransactions", "jsonrpc": "2.0", "params": {}, "id": 7652}

Subscription result:

{"jsonrpc":"2.0","result":true,"id": 7652}

Notification. Updated Transaction:

{
  "jsonrpc": "2.0",
  "method": "updateTransaction",
  "params": {
    "id": "76b70d1c-3dd7-423e-976e-902e516aae0e",
    "index": 7173627250,
    "type": "bankToExchange",
    "status": "success",
    "currency": "BTG",
    "amount": "0.00001000",
    "createdAt": "2021-01-31T08:19:33.892Z",
    "updatedAt": "2021-01-31T08:19:33.967Z"
  }
}

Subscription to the balance

Method: subscribeBalance and the corresponding unsubscription method: unsubscribeBalance

Income method: balance

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 "balance" event will come with the actual state. Please be aware that only non-zero values present.

Event "balance" arrives after each successful subscription.

Subscription request:

{"method": "subscribeBalance", "jsonrpc": "2.0", "params": {}, "id": 7653}

Subscription result:

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

Notification. Updated Transaction:

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

Request Balance

Request:

{
  "method": "getBalance",
  "jsonrpc": "2.0",
  "params": {},
  "id": 5543
}

Response:

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

Method: getBalance

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

Find transactions

Request:

{
  "method": "findTransactions",
  "jsonrpc": "2.0",
  "params": {
    "limit": 10,
    "offset": 0,
    "currency": "BTG",
    "showSenders": true,
    "order": "DESC",
    "from": "2021-01-31T00:00:00.000Z",
    "till": "2021-01-31T22:33:00.555Z"
  },
  "id": 7655
}

Response:

{
  "jsonrpc": "2.0",
  "result": [
    {
      "id": "d91b8caa-ebaa-4254-b50c-8ac717016734",
      "index": 7173628127,
      "type": "exchangeToBank",
      "status": "success",
      "currency": "BTG",
      "amount": "0.00001000",
      "createdAt": "2021-01-31T08:19:48.140Z",
      "updatedAt": "2021-01-31T08:19:48.211Z"
    },
    {
      "id": "76b70d1c-3dd7-423e-976e-902e516aae0e",
      "index": 7173627250,
      "type": "bankToExchange",
      "status": "success",
      "currency": "BTG",
      "amount": "0.00001000",
      "createdAt": "2021-01-31T08:19:33.892Z",
      "updatedAt": "2021-01-31T08:19:33.967Z"
    }
  ],
  "id": 7655
}

Method: findTransactions

All parameters are optional.

Parameters:

Name	Type	Description
from	DateTime	Optional filter by time range
till	DateTime	Optional filter by time range
currency	String	Optional filter by currency
order	String	Sort order, can be one of DESC or ASC. Default - DESC
limit	Number	Pagination. Default 100
offset	Number	Pagination. Default 0
showSenders	Boolean	Include senders addresses. Default - false

Load transactions

Request:

{
  "method": "loadTransactions",
  "jsonrpc": "2.0",
  "params": {
    "limit": 10,
    "offset": 0,
    "currency": "BTG",
    "showSenders": true,
    "from": 7173627250
  },
  "id": 7656
}

Response:

{
  "jsonrpc": "2.0",
  "result": [
    {
      "id": "76b70d1c-3dd7-423e-976e-902e516aae0e",
      "index": 7173627250,
      "type": "bankToExchange",
      "status": "success",
      "currency": "BTG",
      "amount": "0.00001000",
      "createdAt": "2021-01-31T08:19:33.892Z",
      "updatedAt": "2021-01-31T08:19:33.967Z"
    },
    {
      "id": "d91b8caa-ebaa-4254-b50c-8ac717016734",
      "index": 7173628127,
      "type": "exchangeToBank",
      "status": "success",
      "currency": "BTG",
      "amount": "0.00001000",
      "createdAt": "2021-01-31T08:19:48.140Z",
      "updatedAt": "2021-01-31T08:19:48.211Z"
    }
  ],
  "id": 7656
}

Method: loadTransactions

The main difference between the method "loadTransactions" and "findTransactions":

Default sort order is ASC
Filter by index is used instead of the timestamp
The method is used for recovery transactions state

All parameters are optional.

Parameters:

Name	Type	Description
from	Number	Optional filter by index value range (Included)
till	Number	Optional filter by index value range (Excluded)
currency	String	Optional filter by currency
order	String	Sort order, can be one of DESC or ASC. Default - ASC
limit	Number	Pagination. Default 100
offset	Number	Pagination. Default 0
showSenders	Boolean	Include senders addresses. Default - false

Errors

The Mycelium API uses the following error codes:

Error code	HTTP Status Code	Message	Note
403	401	Action is forbidden for account
429	429	Too many requests	Action is being rate limited for account
500	500	Internal Server Error
503	503	Service Unavailable	Try it again later
504	504	Gateway Timeout	Check the result of your request later
1001	401	Authorization required
1002	401	Authorization required or has been failed	Check that authorization data provided
1003	403	Action forbidden for this API key	Check permissions for API key
1004	401	Unsupported authorization method	Use Basic authentication
2001	400	Symbol not found
2002	400	Currency not found
2010	400	Quantity not a valid number
2011	400	Quantity too low
2012	400	Bad quantity	More details in description
2020	400	Price not a valid number
2021	400	Price too low
2022	400	Bad price	More details in description
20001	400	Insufficient funds	Insufficient funds for creating order or any account operation
20002	400	Order not found	Attempt to get active order that not existing, filled, canceled or expired. Attempt to cancel not existing order. Attempt to cancel already filled or expired order.
20003	400	Limit exceeded	Withdrawal limit exceeded
20004	400	Transaction not found	Requested transaction not found
20005	400	Payout not found
20006	400	Payout already committed
20007	400	Payout already rolled back
20008	400	Duplicate clientOrderId
20009	400	Price and quantity not changed
20010	400	Exchange temporary closed	Exchange market temporary closed on symbol
20011	400	Payout address is invalid
20014	400	Offchain for this payout is unavailable	Address do not belong to exchange or belongs to same user or unavailable for currency
20032	400	Margin account or position not found	Create margin account before place orders or account for requested symbol not found
20033	400	Position not changed	Existed marginBalance equal requested value
20034	400	Position in close only state
20040	400	Margin trading forbidden
20080	400	Internal order execution deadline exceeded	Order not placed.
10001	400	Validation error	Input not valid, see more in `message` field
10021	400	User disabled	Sub-Account API. User cant be changed

Guide & Code Samples

Fetch all public trades

Fetch all trades history for a symbol and keep it updated.

General idea: the fetch trades are sorted by ASC from latest id.

import requests
import time
session = requests.session()


def get_trades(symbol_code, from_id):
    return session.get("https://api.cryptoexchange.mycelium.com/api/2/public/trades/%s?sort=ASC&by=id&from=%d&limit=1000" % (symbol_code, from_id)).json()


symbol = 'ETHDAI'
from_trade_id = 1

while True:
    trades = get_trades(symbol, from_trade_id)
    if len(trades) > 0:
        from_trade_id = trades[-1]['id'] + 1
        print('Loaded trades till', trades[-1]['id'], trades[-1]['timestamp'])
        if len(trades) < 1000:
            time.sleep(5)
    else:
        time.sleep(30)

Get trades updated

First version

The fastest way is use the socket API. Subscribe for reports (method subscribeReports) and handle reportType == trade.

Second version

Fetch trades as in the example above but with small changes.

import requests
import time
session = requests.session()
session.auth = ("publicKey", "secretKey")

def get_my_trades(from_id):
    return session.get("https://api.cryptoexchange.mycelium.com/api/2/history/trades?sort=ASC&by=id&limit=100&from=%d" % (from_id)).json()

def get_recent_my_trades():
    return session.get("https://api.cryptoexchange.mycelium.com/api/2/history/trades?sort=DESC&by=id&limit=10").json()

from_trade_id = 0

while True:
    if from_trade_id == 0:
        recent_trades = get_recent_my_trades()
        if len(recent_trades) > 0:
            from_trade_id = recent_trades[0]['id'] + 1
            print('Last recent trade', recent_trades[0])
        else:
            print('You do not have any trades')
    else:
        trades = get_my_trades(from_trade_id)
        if len(trades) > 0:
            from_trade_id = trades[-1]['id'] + 1
            print('new trades', trades)
        else:
            print('No new trades')
    time.sleep(30)

Getting new transactions

The code in the example allows you to get all of your new deposits, withdrawals and transfers.

The index is a 64-bit integer, that increases on any transaction update. To get all new updates of transactions you will need to request transactions with an index value which is greater than the latest one.

For example, if you have created a withdrawal, then you get an update with a transaction hash and committed status after receiving the required number of confirmations.

import requests
import time
session = requests.session()
session.auth = ("publicKey", "secretKey")

def get_my_transactions(from_index):
    return session.get("https://api.cryptoexchange.mycelium.com/api/2/account/transactions?sort=ASC&by=index&limit=100&from=%d" % (from_index)).json()

def get_recent_my_transactions():
    return session.get("https://api.cryptoexchange.mycelium.com/api/2/account/transactions?sort=DESC&by=index&limit=100").json()

from_index = 0

while True:
    if from_index == 0:
        recent_transactions = get_recent_my_transactions()
        if len(recent_transactions) > 0:
            from_index = recent_transactions[0]['index'] + 1
            print('Last recent trade', recent_transactions[0])
        else:
            print('You do not have any transactions')
    else:
        transactions = get_my_transactions(from_index)
        if len(transactions) > 0:
            from_index = transactions[-1]['index'] + 1
            print('New and Updated transactions', transactions)
        else:
            print('No new updates')
    time.sleep(60)