AsyncAPI channel · Vapi · Vapi Realtime API (WebSocket Transport + Server URL Events)

server-url/assistant-request

Vapi requests dynamic assistant configuration for an inbound call. Customer endpoint must respond within 7.5 seconds end-to-end with `{ assistantId }`, `{ assistant }`, `{ destination }`, or `{ error }`.

Open source AsyncAPI → All Vapi channels Vapi provider profile
Provider: Vapi AsyncAPI: v2.6.0 Spec: Vapi Realtime API (WebSocket Transport + Server URL Events) Operations: 2 Messages: 2

Channel address

server-url/assistant-request

Operations

publish
publish server-url/assistant-request
subscribe server-url/assistant-request

Messages

AssistantRequestResponse
assistant-request response
Content-Type:
AssistantRequest
assistant-request
Content-Type:

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 Naftiko capability, Agent Skill, and MCP server surfaces of the same providers.