AsyncAPI channel · Runway · Runway Characters Realtime Events

/session/audio

Bidirectional audio channel for real-time voice communication between the user and the avatar. The user sends microphone audio, and the avatar responds with synthesized speech audio.

Open source AsyncAPI → All Runway channels Runway provider profile
Provider: Runway AsyncAPI: v2.6.0 Spec: Runway Characters Realtime Events Operations: 2 Messages: 1

Channel address

/session/audio

Operations

publish
sendUserAudio
Send user audio to avatar
receiveAvatarAudio
Receive avatar audio response

Messages

AudioStream
Real-time audio data for bidirectional voice communication.
Content-Type: audio/opus

About AsyncAPI

The AsyncAPI specification describes event-driven APIs the way OpenAPI describes request/response APIs. A channel is the named pipe — a webhook URL, a Kafka topic, a WebSocket route, an MQTT subject — that producers and consumers publish or subscribe to. Each channel carries one or more messages with structured payloads, and an operation declares whether a given party sends or receives on that channel.

Browse every event-driven channel on the APIs.io network or compare with the broader Agent Skill and MCP server surfaces of the same providers.