AsyncAPI channel · Perplexity · Perplexity Streaming API (HTTP + Server-Sent Events)

`/v1/agent`

Agent API (Responses/Agentic Research). When `stream: true`, returns `text/event-stream` with typed events. Each event carries a `type` and `sequence_number`. Event types documented by Perplexity: - response.created - response.in_progress - response.completed - response.failed - response.output_item.added - response.output_item.done - response.output_text.delta - response.output_te

Open source AsyncAPI → All Perplexity channels Perplexity provider profile

Provider: Perplexity AsyncAPI: v2.6.0 Spec: Perplexity Streaming API (HTTP + Server-Sent Events) Operations: 2 Messages: 15

Channel address

/v1/agent

Operations

publish

openAgentStream

Open an SSE stream for the Agent API

receiveAgentStreamEvents

Receive Agent API SSE events

Messages

AgentStreamRequest

Agent API request with stream=true

Content-Type: application/json

AgentResponseCreated

Agent SSE event response.created

Content-Type: application/json

AgentResponseInProgress

Agent SSE event response.in_progress

Content-Type: application/json

AgentResponseCompleted

Agent SSE event response.completed

Content-Type: application/json

AgentResponseFailed

Agent SSE event response.failed

Content-Type: application/json

AgentOutputItemAdded

Agent SSE event response.output_item.added

Content-Type: application/json

AgentOutputItemDone

Agent SSE event response.output_item.done

Content-Type: application/json

AgentOutputTextDelta

Agent SSE event response.output_text.delta

Content-Type: application/json

AgentOutputTextDone

Agent SSE event response.output_text.done

Content-Type: application/json

AgentReasoningStarted

Agent SSE event response.reasoning.started

Content-Type: application/json

AgentReasoningSearchQueries

Agent SSE event response.reasoning.search_queries

Content-Type: application/json

AgentReasoningSearchResults

Agent SSE event response.reasoning.search_results

Content-Type: application/json

AgentReasoningFetchUrlQueries

Agent SSE event response.reasoning.fetch_url_queries

Content-Type: application/json

AgentReasoningFetchUrlResults

Agent SSE event response.reasoning.fetch_url_results

Content-Type: application/json

AgentReasoningStopped

Agent SSE event response.reasoning.stopped

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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