> For the complete documentation index, see [llms.txt](https://docs.sfox.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sfox.com/websocket-api.md).

# WebSocket API

- [Introduction](https://docs.sfox.com/websocket-api/introduction.md)
- [Connecting](https://docs.sfox.com/websocket-api/connecting.md): Connecting to the WebSocket API
- [Rate Limits](https://docs.sfox.com/websocket-api/rate-limits.md): Connecting to the WebSocket API
- [Authentication](https://docs.sfox.com/websocket-api/authentication.md): Authenticating to the WebSocket API
- [Subscribing & Unsubscribing](https://docs.sfox.com/websocket-api/subscribing-and-unsubscribing.md): Subscribing or unsubscribing to WebSocket feeds
- [Message Format](https://docs.sfox.com/websocket-api/message-format.md): WebSocket API message format
- [Market Data](https://docs.sfox.com/websocket-api/market-data.md): Receive real-time streaming market data from the sFOX WebSocket API
- [Order Book](https://docs.sfox.com/websocket-api/market-data/order-book.md): Real-time streaming order book data
- [Trades](https://docs.sfox.com/websocket-api/market-data/trades.md): Real-time streaming tick data of publicly executed trades
- [Ticker](https://docs.sfox.com/websocket-api/market-data/ticker.md): Real-time streaming day OHLCV data and last trade
- [Order Book Delta WebSocket API](https://docs.sfox.com/websocket-api/market-data/order-book-delta-websocket-api.md): Pre-release note: The delta feed and this documentation are subject to change before launch.
- [Orders & Account Data](https://docs.sfox.com/websocket-api/orders-and-account-data.md): Receive real-time streaming account updates from the sFOX WebSocket API
- [Orders](https://docs.sfox.com/websocket-api/orders-and-account-data/orders.md): Real-time streaming updates to your open orders
- [Trades](https://docs.sfox.com/websocket-api/orders-and-account-data/trades.md): Real-time streaming updates of completed trades.
- [Balances](https://docs.sfox.com/websocket-api/orders-and-account-data/balances.md): Real-time streaming updates to your account balances
- [Post-Trade Settlement](https://docs.sfox.com/websocket-api/orders-and-account-data/post-trade-settlement.md): Real-time streaming account post-trade settlement credit and risk updates


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