OTC™ – Digital Trading Contract Library

A JavaScript / Python / PHP library for digital contract trading and e-commerce payments.

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The OTC™ library is used to connect and trade with digital contract and payment processing services worldwide.

Supported Cryptocurrency Exchange Markets

The OTC™ library currently is fork of CCXT and supports the following 133 cryptocurrency exchange markets and trading APIs:

	id	name	certified	ver	doc	countries
	_1btcxe	1BTCXE		*	API	Panama
	acx	ACX		2	API	Australia
	allcoin	Allcoin		1	API	Canada
	anxpro	ANXPro		2	API	Japan, Singapore, Hong Kong, New Zealand
	anybits	Anybits		*	API	Ireland
	bcex	BCEX		1	API	China, Canada
	bibox	Bibox		1	API	China, US, South Korea
	bigone	BigONE		2	API	UK
	binance	Binance		*	API	Japan
	bit2c	Bit2C		*	API	Israel
	bitbank	bitbank		1	API	Japan
	bitbay	BitBay		*	API	Malta, EU
	bitfinex	Bitfinex		1	API	British Virgin Islands
	bitfinex2	Bitfinex v2		2	API	British Virgin Islands
	bitflyer	bitFlyer		1	API	Japan
	bitforex	Bitforex		1	API	China
	bithumb	Bithumb		*	API	South Korea
	bitibu	Bitibu		2	API	Cyprus
	bitkk	bitkk		1	API	China
	bitlish	Bitlish		1	API	UK, EU, Russia
	bitmarket	BitMarket		*	API	Poland, EU
	bitmex	BitMEX		1	API	Seychelles
	bitsane	Bitsane		*	API	Ireland
	bitso	Bitso		3	API	Mexico
	bitstamp	Bitstamp		2	API	UK
	bitstamp1	Bitstamp v1		1	API	UK
	bittrex	Bittrex		1.1	API	US
	bitz	Bit-Z		2	API	Hong Kong
	bl3p	BL3P		1	API	Netherlands, EU
	bleutrade	Bleutrade		2	API	Brazil
	braziliex	Braziliex		*	API	Brazil
	btcalpha	BTC-Alpha		1	API	US
	btcbox	BtcBox		1	API	Japan
	btcchina	BTCChina		1	API	China
	btcexchange	BTCExchange		*	API	Philippines
	btcmarkets	BTC Markets		*	API	Australia
	btctradeim	BtcTrade.im		*	API	Hong Kong
	btctradeua	BTC Trade UA		*	API	Ukraine
	btcturk	BTCTurk		*	API	Turkey
	buda	Buda		2	API	Argentina, Chile, Colombia, Peru
	bxinth	BX.in.th		*	API	Thailand
	ccex	C-CEX		*	API	Germany, EU
	cex	CEX.IO		*	API	UK, EU, Cyprus, Russia
	chbtc	CHBTC		1	API	China
	chilebit	ChileBit		1	API	Chile
	cobinhood	COBINHOOD		1	API	Taiwan
	coinbase	Coinbase		2	API	US
	coinbaseprime	Coinbase Prime		*	API	US
	coinbasepro	Coinbase Pro		*	API	US
	coincheck	coincheck		*	API	Japan, Indonesia
	coinegg	CoinEgg		*	API	China, UK
	coinex	CoinEx		1	API	China
	coinexchange	CoinExchange		*	API	India, Japan, South Korea, Vietnam, US
	coinfalcon	CoinFalcon		1	API	UK
	coinfloor	coinfloor		*	API	UK
	coingi	Coingi		*	API	Panama, Bulgaria, China, US
	coinmarketcap	CoinMarketCap		1	API	US
	coinmate	CoinMate		*	API	UK, Czech Republic, EU
	coinnest	coinnest		*	API	South Korea
	coinone	CoinOne		2	API	South Korea
	coinspot	CoinSpot		*	API	Australia
	cointiger	CoinTiger		1	API	China
	coolcoin	CoolCoin		*	API	Hong Kong
	crex24	CREX24		2	API	Estonia
	crypton	Crypton		1	API	EU
	cryptopia	Cryptopia		*	API	New Zealand
	deribit	Deribit		1	API	Netherlands
	dsx	DSX		2	API	UK
	ethfinex	Ethfinex		1	API	British Virgin Islands
	exmo	EXMO		1	API	Spain, Russia
	exx	EXX		*	API	China
	fcoin	FCoin		2	API	China
	flowbtc	flowBTC		1	API	Brazil
	foxbit	FoxBit		1	API	Brazil
	fybse	FYB-SE		*	API	Sweden
	fybsg	FYB-SG		*	API	Singapore
	gatecoin	Gatecoin		*	API	Hong Kong
	gateio	Gate.io		2	API	China
	gdax	GDAX		*	API	US
	gemini	Gemini		1	API	US
	getbtc	GetBTC		*	API	St. Vincent & Grenadines, Russia
	hadax	HADAX		1	API	China
	hitbtc	HitBTC		1	API	Hong Kong
	hitbtc2	HitBTC v2		2	API	Hong Kong
	huobi	Huobi		3	API	China
	huobicny	Huobi CNY		1	API	China
	huobipro	Huobi Pro		1	API	China
	ice3x	ICE3X		1	API	South Africa
	independentreserve	Independent Reserve		*	API	Australia, New Zealand
	indodax	INDODAX		1.8	API	Indonesia
	itbit	itBit		1	API	US
	jubi	jubi.com		1	API	China
	kkex	KKEX		2	API	China, US, Japan
	kraken	Kraken		0	API	US
	kucoin	Kucoin		1	API	Hong Kong
	kuna	Kuna		2	API	Ukraine
	lakebtc	LakeBTC		2	API	US
	lbank	LBank		1	API	China
	liqui	Liqui		3	API	Ukraine
	liquid	Liquid		2	API	Japan, China, Taiwan
	livecoin	LiveCoin		*	API	US, UK, Russia
	luno	luno		1	API	UK, Singapore, South Africa
	lykke	Lykke		1	API	Switzerland
	mercado	Mercado Bitcoin		3	API	Brazil
	mixcoins	MixCoins		1	API	UK, Hong Kong
	negociecoins	NegocieCoins		3	API	Brazil
	nova	Novaexchange		2	API	Tanzania
	okcoincny	OKCoin CNY		1	API	China
	okcoinusd	OKCoin USD		1	API	China, US
	okex	OKEX		1	API	China, US
	paymium	Paymium		1	API	France, EU
	poloniex	Poloniex		*	API	US
	qryptos	QRYPTOS		2	API	Japan, China, Taiwan
	quadrigacx	QuadrigaCX		2	API	Canada
	quoinex	QUOINEX		2	API	Japan, China, Taiwan
	rightbtc	RightBTC		*	API	United Arab Emirates
	southxchange	SouthXchange		*	API	Argentina
	surbitcoin	SurBitcoin		1	API	Venezuela
	theocean	The Ocean		0	API	US
	therock	TheRockTrading		1	API	Malta
	tidebit	TideBit		2	API	Hong Kong
	tidex	Tidex		3	API	UK
	uex	UEX		1.0.3	API	Singapore, US
	urdubit	UrduBit		1	API	Pakistan
	vaultoro	Vaultoro		1	API	Switzerland
	vbtc	VBTC		1	API	Vietnam
	virwox	VirWoX		*	API	Austria, EU
	wex	WEX		3	API	New Zealand
	xbtce	xBTCe		1	API	Russia
	yobit	YoBit		3	API	Russia
	yunbi	YUNBI		2	API	China
	zaif	Zaif		1	API	Japan
	zb	ZB		1	API	China

The list above is updated frequently, new crypto markets, altcoin exchanges, bug fixes, API endpoints are introduced and added on a regular basis. See the Manual for details. If you don't find a cryptocurrency exchange market in the list above and/or want another exchange to be added, post or send us a link to it by opening an issue here on GitHub or via email.

The library is under MIT license, that means it's absolutely free for any developer to build commercial and opensource software on top of it, but use it at your own risk with no warranties, as is.

Install

The easiest way to install the otc library is to use builtin package managers:

• otc in NPM (JavaScript / Node v7.6+)
• otc in PyPI (Python 2 and 3.5.3+)
• otc in Packagist/Composer (PHP 5.4+)

This library is shipped as an all-in-one module implementation with minimalistic dependencies and requirements:

• js/ in JavaScript
• python/ in Python (generated from JS)
• php/ in PHP (generated from JS)

You can also clone it into your project directory from otc GitHub repository:

git clone https://github.com/otctechnology/otc.git

An alternative way of installing this library into your code is to copy a single file manually into your working directory with language extension appropriate for your environment.

JavaScript (NPM)

JavaScript version of OTCX works both in Node and web browsers. Requires ES6 and async/await syntax support (Node 7.6.0+). When compiling with Webpack and Babel, make sure it is not excluded in your babel-loader config.

otc in NPM

npm install otc

var otc = require ('otc')

console.log (otc.exchanges) // print all available exchanges

JavaScript (for use with the <script> tag):

All-in-one browser bundle (dependencies included), served from unpkg CDN, which is a fast, global content delivery network for everything on NPM.

<script type="text/javascript" src="https://unpkg.com/otc"></script>

Creates a global otc object:

console.log (otc.exchanges) // print all available exchanges

Python

otc in PyPI

pip install otc

import otc
print(otc.exchanges) # print a list of all available exchange classes

The library supports concurrent asynchronous mode with asyncio and async/await in Python 3.5.3+

import otc.async_support as otc # link against the asynchronous version of otc

PHP

otc in PHP with Packagist/Composer (PHP 5.4+)

It requires common PHP modules:

• cURL
• mbstring (using UTF-8 is highly recommended)
• PCRE
• iconv
• gmp (this is a built-in extension as of PHP 7.2+)

include "otc.php";
var_dump (\otc\Exchange::$exchanges); // print a list of all available exchange classes

Documentation

Read the Manual for more details.

Usage

Intro

The otc library consists of a public part and a private part. Anyone can use the public part out-of-the-box immediately after installation. Public APIs open access to public information from all exchange markets without registering user accounts and without having API keys.

For trading with private APIs you need to obtain API keys from/to exchange markets. It often means registering with exchanges and creating API keys with your account. Most exchanges require personal info or identification. Some kind of verification may be necessary as well. If you want to trade you need to register yourself, this library will not create accounts or API keys for you. Some exchange APIs expose interface methods for registering an account from within the code itself, but most of exchanges don't. You have to sign up and create API keys with their websites.

Private APIs allow the following:

• manage personal account info
• query account balances
• trade by making market and limit orders
• deposit and withdraw fiat and crypto funds
• query personal orders
• get ledger history
• transfer funds between accounts
• use merchant services

This library implements full public and private REST APIs for all exchanges. WebSocket and FIX implementations in JavaScript, PHP, Python and other languages coming soon.

The otc library supports both camelcase notation (preferred in JavaScript) and underscore notation (preferred in Python and PHP), therefore all methods can be called in either notation or coding style in any language.

// both of these notations work in JavaScript/Python/PHP
exchange.methodName ()  // camelcase pseudocode
exchange.method_name () // underscore pseudocode

Read the Manual for more details.

Feed - CryptoCompare

We are getting free cryptocurrency live pricing data, OHLC historical data, volume data, tick data or block explorer data from multiple exchanges and blockchains. We have integrated with over 90 exchanges, 1800 coins and have over 22,000 trading pairs listed. Whether you are looking for live streaming data or historical tick data we are the one-stop shop for the whole cryptocurrency space.

JavaScript

'use strict';
const otc = require ('otc');

(async function () {
    let kraken    = new otc.kraken ()
    let bitfinex  = new otc.bitfinex ({ verbose: true })
    let huobi     = new otc.huobi ()
    let okcoinusd = new otc.okcoinusd ({
        apiKey: 'YOUR_PUBLIC_API_KEY',
        secret: 'YOUR_SECRET_PRIVATE_KEY',
    })

    const exchangeId = 'binance'
        , exchangeClass = otc[exchangeId]
        , exchange = new exchangeClass ({
            'apiKey': 'YOUR_API_KEY',
            'secret': 'YOUR_SECRET',
            'timeout': 30000,
            'enableRateLimit': true,
        })

    console.log (kraken.id,    await kraken.loadMarkets ())
    console.log (bitfinex.id,  await bitfinex.loadMarkets  ())
    console.log (huobi.id,     await huobi.loadMarkets ())

    console.log (kraken.id,    await kraken.fetchOrderBook (kraken.symbols[0]))
    console.log (bitfinex.id,  await bitfinex.fetchTicker ('BTC/USD'))
    console.log (huobi.id,     await huobi.fetchTrades ('ETH/CNY'))

    console.log (okcoinusd.id, await okcoinusd.fetchBalance ())

    // sell 1 BTC/USD for market price, sell a bitcoin for dollars immediately
    console.log (okcoinusd.id, await okcoinusd.createMarketSellOrder ('BTC/USD', 1))

    // buy 1 BTC/USD for $2500, you pay $2500 and receive ฿1 when the order is closed
    console.log (okcoinusd.id, await okcoinusd.createLimitBuyOrder ('BTC/USD', 1, 2500.00))

    // pass/redefine custom exchange-specific order params: type, amount, price or whatever
    // use a custom order type
    bitfinex.createLimitSellOrder ('BTC/USD', 1, 10, { 'type': 'trailing-stop' })

}) ();

Python

# coding=utf-8

import otc

hitbtc = otc.hitbtc({'verbose': True})
bitmex = otc.bitmex()
huobi  = otc.huobi()
exmo   = otc.exmo({
    'apiKey': 'YOUR_PUBLIC_API_KEY',
    'secret': 'YOUR_SECRET_PRIVATE_KEY',
})
kraken = otc.kraken({
    'apiKey': 'YOUR_PUBLIC_API_KEY',
    'secret': 'YOUR_SECRET_PRIVATE_KEY',
})

exchange_id = 'binance'
exchange_class = getattr(otc, exchange_id)
exchange = exchange_class({
    'apiKey': 'YOUR_API_KEY',
    'secret': 'YOUR_SECRET',
    'timeout': 30000,
    'enableRateLimit': True,
})

hitbtc_markets = hitbtc.load_markets()

print(hitbtc.id, hitbtc_markets)
print(bitmex.id, bitmex.load_markets())
print(huobi.id, huobi.load_markets())

print(hitbtc.fetch_order_book(hitbtc.symbols[0]))
print(bitmex.fetch_ticker('BTC/USD'))
print(huobi.fetch_trades('LTC/CNY'))

print(exmo.fetch_balance())

# sell one ฿ for market price and receive $ right now
print(exmo.id, exmo.create_market_sell_order('BTC/USD', 1))

# limit buy BTC/EUR, you pay €2500 and receive ฿1  when the order is closed
print(exmo.id, exmo.create_limit_buy_order('BTC/EUR', 1, 2500.00))

# pass/redefine custom exchange-specific order params: type, amount, price, flags, etc...
kraken.create_market_buy_order('BTC/USD', 1, {'trading_agreement': 'agree'})

PHP

include 'otc.php';

$poloniex = new \otc\poloniex ();
$bittrex  = new \otc\bittrex  (array ('verbose' => true));
$quoinex  = new \otc\quoinex   ();
$zaif     = new \otc\zaif     (array (
    'apiKey' => 'YOUR_PUBLIC_API_KEY',
    'secret' => 'YOUR_SECRET_PRIVATE_KEY',
));
$hitbtc   = new \otc\hitbtc   (array (
    'apiKey' => 'YOUR_PUBLIC_API_KEY',
    'secret' => 'YOUR_SECRET_PRIVATE_KEY',
));

$exchange_id = 'binance';
$exchange_class = "\\otc\\$exchange_id";
$exchange = new $exchange_class (array (
    'apiKey' => 'YOUR_API_KEY',
    'secret' => 'YOUR_SECRET',
    'timeout' => 30000,
    'enableRateLimit' => true,
));

$poloniex_markets = $poloniex->load_markets ();

var_dump ($poloniex_markets);
var_dump ($bittrex->load_markets ());
var_dump ($quoinex->load_markets ());

var_dump ($poloniex->fetch_order_book ($poloniex->symbols[0]));
var_dump ($bittrex->fetch_trades ('BTC/USD'));
var_dump ($quoinex->fetch_ticker ('ETH/EUR'));
var_dump ($zaif->fetch_ticker ('BTC/JPY'));

var_dump ($zaif->fetch_balance ());

// sell 1 BTC/JPY for market price, you pay ¥ and receive ฿ immediately
var_dump ($zaif->id, $zaif->create_market_sell_order ('BTC/JPY', 1));

// buy BTC/JPY, you receive ฿1 for ¥285000 when the order closes
var_dump ($zaif->id, $zaif->create_limit_buy_order ('BTC/JPY', 1, 285000));

// set a custom user-defined id to your order
$hitbtc->create_order ('BTC/USD', 'limit', 'buy', 1, 3000, array ('clientOrderId' => '123'));

Contributing

Please read the CONTRIBUTING document before making changes that you would like adopted in the code. Also, read the Manual for more details.