AsyncAPI channel · Contextual AI · Contextual AI Agent Query Streaming (HTTP + SSE)

/agents/{agent_id}/query

Agent query SSE stream. The client opens this channel by issuing `POST /agents/{agent_id}/query` with `Content-Type: application/json` and a JSON body containing `stream: true`. The server responds with `Content-Type: text/event-stream` and emits a sequence of `data:` lines carrying grounded response token deltas, optional attribution and retrieval events, and a final completion event.

Open source AsyncAPI → All Contextual AI channels Contextual AI provider profile
Provider: Contextual AI AsyncAPI: v2.6.0 Spec: Contextual AI Agent Query Streaming (HTTP + SSE) Operations: 1 Messages: 3

Channel address

/agents/{agent_id}/query

Parameters

Operations

streamAgentQueryEvents
Subscribe to streamed agent query events (SSE).

Messages

MessageDelta
A single SSE `data:` event carrying one delta of the grounded agent response. Many of these are emitted per request, in order.
Content-Type: application/json
AttributionEvent
SSE event carrying inline attribution or retrieval-content metadata for the grounded response.
Content-Type: application/json
QueryComplete
Terminal SSE event marking the end of the grounded response stream, carrying the final message identifiers and groundedness scores.
Content-Type: application/json

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.

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