Receive streamed responses

When to use streaming

Streaming improves perceived chat speed by delivering text fragments as generated.

POST /v1/agents/{AGENT_ID}/responses/stream
Accept: text/event-stream

It accepts the regular response body, including conversation_id.

Process events

• response.created: conversation identifier.
• response.output_text.delta: text fragment.
• response.completed: full text and public citations.
• error: terminates with code and message.

const events = client.responses.stream({ message: "Summarize this opportunity", conversationId, signal });
for await (const event of events) if (event.type === "response.output_text.delta") process.stdout.write(event.delta);

Use collectStream(...) for a normalized final response.

Do not automatically retry a started stream: the message may already have been accepted.