Node.js & JavaScript SDK for Binance REST APIs & WebSockets

Updated & performant JavaScript & Node.js SDK for the Binance REST APIs and WebSockets:

• Professional, robust & performant Binance SDK with leading trading volume in production (livenet).
• Extensive integration with Binance REST APIs, WebSockets & WebSocket APIs.
• Complete TypeScript support (with type declarations for all API requests & responses).
• Supports Binance REST APIs for Binance Spot, Margin, Isolated Margin, Options, USDM & CoinM Futures.
  • Strongly typed requests and responses.
  • Automated end-to-end tests on most API calls, ensuring no breaking changes are released to npm.
• Actively maintained with a modern, promise-driven interface.
• Support for all authentication mechanisms available on Binance:
  • HMAC
  • RSA
  • Ed25519 (required for WS API).
  • Passing a private key as a secret will automatically detect whether to switch to RSA or Ed25519 authentication.
• Supports WebSockets for all available product groups on Binance including Spot, Margin, Isolated Margin, Portfolio, Options, USDM & CoinM Futures.
  • Event driven messaging.
  • Smart WebSocket persistence
    • Automatically handle silent WebSocket disconnections through timed heartbeats, including the scheduled 24hr disconnect.
    • Automatically handle listenKey persistence and expiration/refresh.
    • Emit reconnected event when dropped connection is restored.
  • Strongly typed on most WebSocket events, with typeguards available for TypeScript users.
  • Optional:
    • Automatic beautification of WebSocket events (from one-letter keys to descriptive words, and strings with floats to numbers).
    • Automatic beautification of REST responses (parsing numbers in strings to numbers).
• Supports WebSocket API on all available product groups, including Spot & Futures:
  • Use the WebsocketClient's event-driven sendWSAPIRequest() method, or;
  • Use the WebsocketAPIClient for a REST-like experience. Use the WebSocket API like a REST API! See examples/ws-api-client.ts for a demonstration.
• Heavy automated end-to-end testing with real API calls.
  • End-to-end testing before any release.
  • Real API calls in e2e tests.
• Proxy support via axios integration.
• Active community support & collaboration in telegram: Node.js Algo Traders.

Table of Contents

• Installation
• Examples
  • REST API Examples
  • WebSocket Examples
    • WebSocket Consumers
    • WebSocket API
• Issues & Discussion
• Related Projects
• Documentation Links
• Usage
  • REST API Clients
    • REST Main Client
    • REST USD-M Futures
    • REST COIN-M Futures
  • WebSockets
    • WebSocket Consumers
    • WebSocket API
      • Event Driven API
      • Promise Driven API
  • Customise Logging
  • Frontend Usage
    • Import
    • Webpack
• LLMs & AI
• Contributions & Thanks

Installation

npm install binance --save

Examples

Refer to the examples folder for implementation demos.

Issues & Discussion

• Issues? Check the issues tab.
• Discuss & collaborate with other node devs? Join our Node.js Algo Traders engineering community on telegram.
• Questions about Binance APIs & WebSockets? Ask in the official Binance API group on telegram.
• Follow our announcement channel for real-time updates on X/Twitter

Related projects

Check out my related JavaScript/TypeScript/Node.js projects:

• Try my REST API & WebSocket SDKs:
  • Bybit-api Node.js SDK
  • Okx-api Node.js SDK
  • Binance Node.js SDK
  • Gateio-api Node.js SDK
  • Bitget-api Node.js SDK
  • Kucoin-api Node.js SDK
  • Coinbase-api Node.js SDK
  • Bitmart-api Node.js SDK
• Try my misc utilities:
  • OrderBooks Node.js
  • Crypto Exchange Account State Cache
• Check out my examples:
  • awesome-crypto-examples Node.js

Documentation

Most methods accept JS objects. These can be populated using parameters specified by Binance's API documentation.

• Binance API Documentation
  • Spot
  • Derivatives
  • Margin
  • Wallet
• Find all products here
• REST Endpoint Function List
• TSDoc Documentation (autogenerated using typedoc)

Structure

This project uses typescript. Resources are stored in 3 key structures:

• src - the whole connector written in typescript
• lib - the javascript version of the project (compiled from typescript). This should not be edited directly, as it will be overwritten with each release.
• dist - the packed bundle of the project for use in browser environments.

---

Usage

Create API credentials at Binance

• Livenet
• Testnet.
• Testnet Futures.

REST API Clients

There are several REST API modules as there are some differences in each API group.

1. MainClient for most APIs, including: spot, margin, isolated margin, mining, BLVT, BSwap, Fiat & sub-account management.
2. USDMClient for USD-M futures APIs.
3. CoinMClient for COIN-M futures APIs.
4. PortfolioClient for Portfolio Margin APIs.

Vanilla Options is not yet available. Please get in touch if you're looking for this.

REST Main Client

The MainClient covers all endpoints under the main "api*.binance.com" subdomains, including but not limited to endpoints in the following product groups:

• Spot
• Cross & isolated margin
• Convert
• Wallet
• Futures management (transfers & history)
• Sub account management
• Misc transfers
• Auto & dual invest
• Staking
• Mining
• Loans & VIP loans
• Simple Earn
• NFTs
• C2C
• Exchange Link

Refer to the following links for a complete list of available endpoints:

• Binance Node.js & JavaScript SDK Endpoint Map
• Binance Spot API Docs

Start by importing the MainClient class. API credentials are optional, unless you plan on making private API calls. More Node.js & JavaScript examples for Binance's REST APIs & WebSockets can be found in the examples folder on GitHub.

1import { MainClient } from 'binance';
2
3// or, if you prefer `require()`:
4// const { MainClient } = require('binance');
5
6const API_KEY = 'xxx';
7const API_SECRET = 'yyy';
8
9const client = new MainClient({
10  api_key: API_KEY,
11  api_secret: API_SECRET,
12  // Connect to testnet environment
13  // testnet: true,
14});
15
16client
17  .getAccountTradeList({ symbol: 'BTCUSDT' })
18  .then((result) => {
19    console.log('getAccountTradeList result: ', result);
20  })
21  .catch((err) => {
22    console.error('getAccountTradeList error: ', err);
23  });
24
25client
26  .getExchangeInfo()
27  .then((result) => {
28    console.log('getExchangeInfo inverse result: ', result);
29  })
30  .catch((err) => {
31    console.error('getExchangeInfo inverse error: ', err);
32  });

See main-client.ts for further information on the available REST API endpoints for spot/margin/etc.

REST USD-M Futures

Start by importing the USDM client. API credentials are optional, unless you plan on making private API calls.

1import { USDMClient } from 'binance';
2
3// or, if you prefer `require()`:
4// const { USDMClient } = require('binance');
5
6const API_KEY = 'xxx';
7const API_SECRET = 'yyy';
8
9const client = new USDMClient({
10  api_key: API_KEY,
11  api_secret: API_SECRET,
12  // Connect to testnet environment
13  // testnet: true,
14});
15
16client
17  .getBalance()
18  .then((result) => {
19    console.log('getBalance result: ', result);
20  })
21  .catch((err) => {
22    console.error('getBalance error: ', err);
23  });
24
25client
26  .submitNewOrder({
27    side: 'SELL',
28    symbol: 'BTCUSDT',
29    type: 'MARKET',
30    quantity: 0.001,
31  })
32  .then((result) => {
33    console.log('submitNewOrder result: ', result);
34  })
35  .catch((err) => {
36    console.error('submitNewOrder error: ', err);
37  });
38

See usdm-client.ts for further information.

REST COIN-M Futures

Start by importing the coin-m client. API credentials are optional, though an error is thrown when attempting any private API calls without credentials.

1import { CoinMClient } from 'binance';
2
3// or, if you prefer `require()`:
4// const { CoinMClient } = require('binance');
5
6const API_KEY = 'xxx';
7const API_SECRET = 'yyy';
8
9const client = new CoinMClient({
10  api_key: API_KEY,
11  api_secret: API_SECRET,
12  // Connect to testnet environment
13  // testnet: true,
14});
15
16client
17  .getSymbolOrderBookTicker()
18  .then((result) => {
19    console.log('getSymbolOrderBookTicker result: ', result);
20  })
21  .catch((err) => {
22    console.error('getSymbolOrderBookTicker error: ', err);
23  });

See coinm-client.ts for further information.

WebSockets

WebSocket Consumers

All websockets are accessible via the shared WebsocketClient. As before, API credentials are optional unless the user data stream is required.

The below example demonstrates connecting as a consumer, to receive WebSocket events from Binance:

1import { WebsocketClient } from 'binance';
2
3// or, if you prefer `require()`:
4// const { WebsocketClient } = require('binance');
5
6const API_KEY = 'xxx';
7const API_SECRET = 'yyy';
8
9/**
10 * The WebsocketClient will manage individual connections for you, under the hood.
11 * Just make an instance of the WS Client and subscribe to topics. It'll handle the rest.
12 */
13const wsClient = new WebsocketClient(
14  {
15    api_key: key,
16    api_secret: secret,
17    // Optional: when enabled, the SDK will try to format incoming data into more readable objects.
18    // Beautified data is emitted via the "formattedMessage" event
19    beautify: true,
20    // Disable ping/pong ws heartbeat mechanism (not recommended)
21    // disableHeartbeat: true,
22    // Connect to testnet environment
23    // testnet: true,
24  },
25);
26
27// receive raw events
28wsClient.on('message', (data) => {
29  console.log('raw message received ', JSON.stringify(data, null, 2));
30});
31
32// notification when a connection is opened
33wsClient.on('open', (data) => {
34  console.log('connection opened open:', data.wsKey, data.wsUrl);
35});
36
37// receive formatted events with beautified keys. Any "known" floats stored in strings as parsed as floats.
38wsClient.on('formattedMessage', (data) => {
39  console.log('formattedMessage: ', data);
40});
41
42// read response to command sent via WS stream (e.g LIST_SUBSCRIPTIONS)
43wsClient.on('response', (data) => {
44  console.log('log response: ', JSON.stringify(data, null, 2));
45});
46
47// receive notification when a ws connection is reconnecting automatically
48wsClient.on('reconnecting', (data) => {
49  console.log('ws automatically reconnecting.... ', data?.wsKey);
50});
51
52// receive notification that a reconnection completed successfully (e.g use REST to check for missing data)
53wsClient.on('reconnected', (data) => {
54  console.log('ws has reconnected ', data?.wsKey);
55});
56
57// Recommended: receive error events (e.g. first reconnection failed)
58wsClient.on('exception', (data) => {
59  console.log('ws saw error ', data?.wsKey);
60});
61
62/**
63 * Subscribe to public topics either one at a time or many in an array
64 */
65
66// E.g. one at a time, routed to the coinm futures websockets:
67wsClient.subscribe('btcusd@indexPrice', 'coinm');
68wsClient.subscribe('btcusd@miniTicker', 'coinm');
69
70// Or send many topics at once to a stream, e.g. the usdm futures stream:
71wsClient.subscribe(
72  [
73    'btcusdt@aggTrade',
74    'btcusdt@markPrice',
75    '!ticker@arr',
76    '!miniTicker@arr',
77  ],
78  'usdm',
79);
80
81// spot & margin topics should go to "main"
82// (similar how the MainClient is for REST APIs in that product group)
83wsClient.subscribe(
84  [
85    // All Market Rolling Window Statistics Streams
86    // https://developers.binance.com/docs/binance-spot-api-docs/web-socket-streams#all-market-rolling-window-statistics-streams
87    '!ticker_1h@arr',
88    // Individual Symbol Book Ticker Streams
89    // https://developers.binance.com/docs/binance-spot-api-docs/web-socket-streams#individual-symbol-book-ticker-streams
90    'btcusdt@bookTicker',
91    // Average Price
92    // https://developers.binance.com/docs/binance-spot-api-docs/web-socket-streams#average-price
93    'btcusdt@avgPrice',
94    // Partial Book Depth Streams
95    // https://developers.binance.com/docs/binance-spot-api-docs/web-socket-streams#partial-book-depth-streams
96    'btcusdt@depth10@100ms',
97    // Diff. Depth Stream
98    // https://developers.binance.com/docs/binance-spot-api-docs/web-socket-streams#diff-depth-stream
99    'btcusdt@depth',
100  ],
101  // Look at the `WS_KEY_URL_MAP` for a list of values here:
102  // https://github.com/tiagosiebler/binance/blob/master/src/util/websockets/websocket-util.ts
103  // "main" connects to wss://stream.binance.com:9443/stream
104  // https://developers.binance.com/docs/binance-spot-api-docs/web-socket-streams
105  'main',
106);
107
108/**
109 * For the user data stream, these convenient subscribe methods open a dedicated
110 * connection with the listen key workflow:
111 */
112
113wsClient.subscribeSpotUserDataStream();
114wsClient.subscribeMarginUserDataStream();
115wsClient.subscribeIsolatedMarginUserDataStream('BTCUSDT');
116wsClient.subscribeUsdFuturesUserDataStream();

See websocket-client.ts for further information. Also see ws-userdata.ts for user data examples.

WebSocket API

Some of the product groups available on Binance also support sending requests (commands) over an active WebSocket connection. This is called the WebSocket API.

Note: the WebSocket API requires the use of Ed25519 keys. HMAC & RSA keys are not supported by Binance for the WebSocket API (as of Apr 2025).

Event Driven API

The WebSocket API is available in the WebsocketClient via the sendWSAPIRequest(wsKey, command, commandParameters) method.

Each call to this method is wrapped in a promise, which you can async await for a response, or handle it in a raw event-driven design.

Async Await API

The WebSocket API is also available in a promise-wrapped REST-like format. Either, as above, await any calls to sendWSAPIRequest(...), or directly use the convenient WebsocketAPIClient. This class is very similar to existing REST API classes (such as the MainClient or USDMClient).

It provides one function per endpoint, feels like a REST API and will automatically route your request via an automatically persisted, authenticated and health-checked WebSocket API connection.

Below is an example showing how easy it is to use the WebSocket API without any concern for the complexity of managing WebSockets.

1import { WebsocketAPIClient } from 'binance';
2
3// or, if you prefer `require()`:
4// const { WebsocketAPIClient } = require('binance');
5
6/**
7 * The WS API only works with an Ed25519 API key.
8 *
9 * Check the rest-private-ed25519.md in this folder for more guidance
10 * on preparing this Ed25519 API key.
11 */
12
13const publicKey = `-----BEGIN PUBLIC KEY-----
14MCexampleQTxwLU9o=
15-----END PUBLIC KEY-----
16`;
17
18const privateKey = `-----BEGIN PRIVATE KEY-----
19MC4CAQAexamplewqj5CzUuTy1
20-----END PRIVATE KEY-----
21`;
22
23// API Key returned by binance, generated using the publicKey (above) via Binance's website
24const apiKey = 'TQpJexamplerobdG';
25
26// Make an instance of the WS API Client
27const wsClient = new WebsocketAPIClient({
28  api_key: apiKey,
29  api_secret: privateKey,
30  beautify: true,
31
32  // Enforce testnet ws connections, regardless of supplied wsKey
33  // testnet: true,
34});
35
36// Optional, if you see RECV Window errors, you can use this to manage time issues. However, make sure you sync your system clock first!
37// https://github.com/tiagosiebler/awesome-crypto-examples/wiki/Timestamp-for-this-request-is-outside-of-the-recvWindow
38// wsClient.setTimeOffsetMs(-5000);
39
40// Optional, see above. Can be used to prepare a connection before sending commands
41// await wsClient.connectWSAPI(WS_KEY_MAP.mainWSAPI);
42
43// Make WebSocket API calls, very similar to a REST API:
44
45wsClient
46  .getFuturesAccountBalanceV2({
47    timestamp: Date.now(),
48    recvWindow: 5000,
49  })
50  .then((result) => {
51    console.log('getFuturesAccountBalanceV2 result: ', result);
52  })
53  .catch((err) => {
54    console.error('getFuturesAccountBalanceV2 error: ', err);
55  });
56
57wsClient
58  .submitNewFuturesOrder('usdm', {
59    side: 'SELL',
60    symbol: 'BTCUSDT',
61    type: 'MARKET',
62    quantity: 0.001,
63    timestamp: Date.now(),
64    // recvWindow: 5000,
65  })
66  .then((result) => {
67    console.log('getFuturesAccountBalanceV2 result: ', result);
68  })
69  .catch((err) => {
70    console.error('getFuturesAccountBalanceV2 error: ', err);
71  });

---

Customise Logging

Pass a custom logger which supports the log methods trace, info and error, or override methods from the default logger as desired.

1import { WebsocketClient, DefaultLogger } from 'binance';
2
3// or, if you prefer `require()`:
4// const { WebsocketClient, DefaultLogger } = require('binance');
5
6// Enable all logging on the trace level (disabled by default)
7DefaultLogger.trace = (...params) => {
8  console.trace('trace: ', params);
9};
10
11// Pass the updated logger as the 2nd parameter
12const ws = new WebsocketClient(
13  {
14    api_key: key,
15    api_secret: secret,
16    beautify: true,
17  },
18  DefaultLogger
19);
20
21// Or, create a completely custom logger with the 3 available functions
22const customLogger = {
23  trace: (...params: LogParams): void => {
24    console.trace(new Date(), params);
25  },
26  info: (...params: LogParams): void => {
27    console.info(new Date(), params);
28  },
29  error: (...params: LogParams): void => {
30    console.error(new Date(), params);
31  },
32}
33
34// Pass the custom logger as the 2nd parameter
35const ws = new WebsocketClient(
36  {
37    api_key: key,
38    api_secret: secret,
39    beautify: true,
40  },
41  customLogger
42);

Browser/Frontend Usage

Import

This is the "modern" way, allowing the package to be directly imported into frontend projects with full typescript support.

1. Install these dependencies

   1npm install crypto-browserify stream-browserify

2. Add this to your tsconfig.json

   1{
   2  "compilerOptions": {
   3    "paths": {
   4      "crypto": [
   5        "./node_modules/crypto-browserify"
   6      ],
   7      "stream": [
   8        "./node_modules/stream-browserify"
   9      ]
   10}

3. Declare this in the global context of your application (ex: in polyfills for angular)

   1(window as any).global = window;

Webpack

This is the "old" way of using this package on webpages. This will build a minified js bundle that can be pulled in using a script tag on a website.

Build a bundle using webpack:

• npm install
• npm build
• npm pack

The bundle can be found in dist/. Altough usage should be largely consistent, smaller differences will exist. Documentation is still TODO.

Use with LLMs & AI

This SDK includes a bundled llms.txt file in the root of the repository. If you're developing with LLMs, use the included llms.txt with your LLM - it will significantly improve the LLMs understanding of how to correctly use this SDK.

This file contains AI optimised structure of all the functions in this package, and their parameters for easier use with any learning models or artificial intelligence.

---

Contributions & Thanks

Have my projects helped you? Share the love, there are many ways you can show your thanks:

• Star & share my projects.
• Are my projects useful? Sponsor me on Github and support my effort to maintain & improve them: https://github.com/sponsors/tiagosiebler
• Have an interesting project? Get in touch & invite me to it.
• Or buy me all the coffee:
  • ETH(ERC20): 0xA3Bda8BecaB4DCdA539Dc16F9C54a592553Be06C

Contributions & Pull Requests

Contributions are encouraged, I will review any incoming pull requests. See the issues tab for todo items.

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