---
title: "Observe Async Chat Stream Events"
method: GET
path: "/v1/messages/async/{message_id}/stream"
tags: ["asyncMessages"]
---

# Observe Async Chat Stream Events

`GET /v1/messages/async/{message_id}/stream`

Observe an asynchronous chat stream via Server-Sent Events.

This endpoint provides a Server-Sent Events stream that delivers
chat completion events in real-time. The events follow
the same format as synchronous chat streaming responses.

Stream Lifecycle:
1. Stream initiated via POST /v1/messages/async
2. Events begin flowing when processing starts
3. Stream automatically closes when message completes
4. Stream can be cancelled via POST /v1/messages/async/{message_id}/cancel

Notes:
* Stream remains active until message completion or cancellation
* Events are delivered in chronological order
* Connection will automatically close when stream ends
* Use appropriate SSE client libraries for robust event handling

## Path parameters

- `message_id` string, required

## Response `200`

Server-sent events stream with chat completion data

- unknown

## Other responses

- `401` — Unauthorized
- `404` — Stream not found
- `422` — Validation Error

---

[API](https://skmtc.dev/privategpt/apis/api-reference.md) · [All operations](https://skmtc.dev/privategpt/apis/api-reference/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/privategpt/api-reference/revisions/15d9ccfd68da/schema)