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Binance.US WebSocket API

The Binance.US WebSocket API is a request/response API delivered over a persistent WebSocket connection at wss://ws-api.binance.us/ws-api/v3. It is functionally equivalent to the REST API — the same parameters, the same status and error codes — but offers lower latency for time-sensitive trading. It covers general requests, market data requests, trading requests (place/test/query/cancel/replace orders and OCO), account requests, and user data stream lifecycle requests. SIGNED (TRADE and USER_DATA) requests use the same HMAC SHA-256 signature and timing rules as the REST API.

Binance.US WebSocket API is one of 3 APIs that Binance.US publishes on the APIs.io network, described by an AsyncAPI event-driven specification.

Tagged areas include Cryptocurrency, Exchange, Trading, Real-Time, and WebSocket. The published artifact set on APIs.io includes API documentation and an AsyncAPI specification.

This event API exposes 2 operations across 1 channel, and defines 4 schemas. It is described by AsyncAPI 2.6.0, at version 3.

The API connects through a single server, ws-api.binance.us:443/ws-api/v3 (wss).

2 operations 1 channels 4 schemas

Metadata

The identity and technical contract details declared by the specification.

Specification
AsyncAPI 2.6.0
API Version
3
Base URL
wss://ws-api.binance.us/ws-api/v3
Resource Areas
1

Channels & Operations 2

Across 1 channel, the API surfaces 2 operations. Each is listed below with its action, channel, parameters, and response codes.

Channels 2
SUB
/ws-api/v3
Receive the matching WebSocket API response.
receiveResponse body
PUB
/ws-api/v3
Send a WebSocket API request.
sendRequest body

Messages & Schemas 4

The contract defines 4 schemas that model the data carried by its messages. Each schema is shown below with its type and property counts.

Request
message
SuccessResponse
message
ErrorResponse
message
RateLimits
array
Rate limiting status returned alongside the response.

Specification

The full machine-readable AsyncAPI contract behind this narrative.

Source

binance.us-websocket-api-asyncapi.yml Raw ↑

Other APIs Binance.US publishes across the network.

Binance.US REST API
Binance.US WebSocket Streams
Where this information came from

This is an independent, third-party profile of Binance.US WebSocket API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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