# LiveKit Signaling Protocol (WebSocket)

**Canonical:** https://apis.io/apis/livekit/signaling-api/  
**Provider:** LiveKit — https://apis.io/providers/livekit/  
**Base URL:** wss://your-project.livekit.cloud/rtc  
**Documentation:** https://docs.livekit.io/reference/internals/client-protocol/

LiveKit Signaling Protocol (WebSocket) is one of 6 APIs that [LiveKit](https://apis.io/providers/livekit/) publishes on the [APIs.io](https://apis.io/) network, described by an AsyncAPI event-driven specification. Tagged areas include WebSocket, Signaling, WebRTC, Protobuf, and AsyncAPI. The published artifact set on APIs.io includes API documentation and an AsyncAPI specification.

Bi-directional WebSocket signaling protocol used by LiveKit clients to coordinate WebRTC sessions with the SFU. Clients send `SignalRequest` protobuf messages and receive `SignalResponse` protobuf messages over a single `/rtc` WebSocket connection.

## Machine-readable artifacts (3)

- **Documentation** — https://docs.livekit.io/reference/internals/client-protocol/
- **GitHub** — https://github.com/livekit/protocol
- **AsyncAPI** — https://raw.githubusercontent.com/api-evangelist/livekit/refs/heads/main/asyncapi/livekit-asyncapi.yml

## Other LiveKit APIs (5)

- [LiveKit RoomService API](https://apis.io/apis/livekit/room-service-api/)
- [LiveKit Egress API](https://apis.io/apis/livekit/egress-api/)
- [LiveKit Ingress API](https://apis.io/apis/livekit/ingress-api/)
- [LiveKit SIP (Telephony) API](https://apis.io/apis/livekit/sip-api/)
- [LiveKit Agents API](https://apis.io/apis/livekit/agents-api/)

## Tags

WebSocket, Signaling, WebRTC, Protobuf, AsyncAPI

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