Stream thread events

Stream events scoped to one Session thread.

GET /api/v1/cloud/sessions/{session_id}/threads/{thread_id}/stream

Streams public events for one thread as Server-Sent Events.

Path parameters

Parameter	Type	Description
session_id	string	Session ID with the sess_ prefix
thread_id	string	Thread ID with the sthr_ prefix

Headers

Header	Required	Description
Authorization	Yes	Bearer $QODER_PAT
Accept	No	Use text/event-stream
Last-Event-ID	No	If provided, the stream resumes after the specified event ID. Returns 400 if the event ID does not exist, has been archived, refers to a non-public internal event, or is not part of this thread.

Example request

curl -N -X GET "https://api.qoder.com/api/v1/cloud/sessions/sess_019f00000000000000000000000000aa/threads/sthr_019f00000000000000000000000002bb/stream" \
  -H "Authorization: Bearer $QODER_PAT" \
  -H "Accept: text/event-stream"

Stream format

id: evt_019f00000000000000000000000003cc
event: agent.message
data: {"id":"evt_019f00000000000000000000000003cc","type":"agent.message","content":[{"type":"text","text":"Thread response"}],"processed_at":"2026-06-15T08:02:00.000Z"}

id: evt_c3d4e5f6a7b8c9d0
event: session.thread_status_idle
data: {"agent_name":"my-agent","id":"evt_c3d4e5f6a7b8c9d0","processed_at":"2026-06-15T08:02:01.000Z","session_thread_id":"sthr_019f00000000000000000000000002bb","stop_reason":{"type":"end_turn"},"type":"session.thread_status_idle"}

The server sends : heartbeat comment lines periodically to keep the connection alive.

Errors

HTTP	Type	Trigger
400	invalid_request_error	Last-Event-ID does not identify a valid public event in this session/thread (the event does not exist, has been archived, is a non-public internal event, or is not part of this thread)
401	authentication_error	PAT invalid or expired
404	not_found_error	Session or thread does not exist

HTTP 404 Not Found

{
  "type": "error",
  "request_id": "cb80235f-76a2-4ff3-9e28-5aa2da12dc14",
  "error": {
    "type": "not_found_error",
    "message": "Session thread 'sthr_fakefakefake_xxxxxxxxxxxxxxxx' was not found."
  },
  "request_id": "b5822072-f264-48da-9d61-6d48ffb07551"
}

See Errors for the full error envelope.

Related

Managed Agents

Understand thread event semantics in multi-agent collaboration.

List Thread Events

Page through a thread’s historical events.

List Session Threads

View all threads in a session.