Binance · AsyncAPI Specification

Binance Spot WebSocket API

Version 1.0.0

The Binance Spot WebSocket API provides an alternative way to access spot trading functionality through persistent WebSocket connections. It is functionally equivalent to the REST API, accepting the same parameters and returning the same status and error codes, but offers lower latency for time-sensitive trading operations. Developers can place orders, cancel orders, and query account information over a single WebSocket connection.

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Channels

publish receiveResponse

Receive API responses

Single WebSocket connection for sending trading requests and receiving responses. All requests and responses are JSON-formatted messages on this channel. Requests include a method name and parameters; responses include a matching id field.

Messages

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OrderRequest

Order Request

Request to place a new order via WebSocket.

✉

CancelOrderRequest

Cancel Order Request

Request to cancel an order via WebSocket.

✉

AccountRequest

Account Request

Request for account information via WebSocket.

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MarketDataRequest

Market Data Request

Request for market data via WebSocket.

✉

OrderResponse

Order Response

Response to an order request.

✉

AccountResponse

Account Response

Response to an account query.

✉

MarketDataResponse

Market Data Response

Response to a market data query.

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ErrorResponse

Error Response

Error response for failed requests.

Servers

wss

production wss://ws-api.binance.com:443/ws-api/v3

Production WebSocket API server for spot trading operations.

wss

testnet wss://testnet.binance.vision/ws-api/v3

Testnet WebSocket API server.