# BigONE WebSocket API

**Canonical:** https://apis.io/apis/bigone/bigone-websocket-api/  
**Provider:** BigONE — https://apis.io/providers/bigone/  
**Base URL:** https://api.big.one/ws/v2  
**Documentation:** https://open.big.one/docs/guides/websocket/spot

BigONE WebSocket API is one of 16 APIs that [BigONE](https://apis.io/providers/bigone/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include WebSocket, Streaming, and Market Data. The published artifact set on APIs.io includes API documentation.

Real-time spot market data and private order/account streams at wss://api.big.one/ws/v2 (JSON or protobuf messages, defined in the published websocket.proto), plus contract streams at wss://api.big.one/ws/contract/v2.

## Machine-readable artifacts (4)

- **Protobuf** — https://artifacts.apis.io/bigone/grpc/bigone-websocket.proto
- **Documentation** — https://open.big.one/docs/guides/websocket/spot
- **Documentation** — https://open.big.one/docs/guides/websocket/contract
- **APIsJSON** — https://artifacts.apis.io/bigone/apis.yml

## Other BigONE APIs (12)

- [BigONE Account API](https://apis.io/apis/bigone/bigone-account-api/)
- [BigONE Asset API](https://apis.io/apis/bigone/bigone-asset-api/)
- [BigONE Assets API](https://apis.io/apis/bigone/bigone-assets-api/)
- [BigONE Deposit API](https://apis.io/apis/bigone/bigone-deposit-api/)
- [BigONE Funding Account API](https://apis.io/apis/bigone/bigone-funding-account-api/)
- [BigONE Market Data API](https://apis.io/apis/bigone/bigone-market-data-api/)
- [BigONE Order API](https://apis.io/apis/bigone/bigone-order-api/)
- [BigONE Ping API](https://apis.io/apis/bigone/bigone-ping-api/)
- [BigONE Position API](https://apis.io/apis/bigone/bigone-position-api/)
- [BigONE Quote API](https://apis.io/apis/bigone/bigone-quote-api/)
- [BigONE Ranges API](https://apis.io/apis/bigone/bigone-ranges-api/)
- [BigONE Trade API](https://apis.io/apis/bigone/bigone-trade-api/)

## Tags

WebSocket, Streaming, Market Data

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/bigone/bigone-websocket-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/bigone/.