List messages
Beta

get https://api.openai.com/v1/threads/{thread_id}/messages

Returns a list of messages for a given thread.source

Path parameters

The ID of the thread the messages belong to.source

Query parameters

A limit on the number of objects to be returned. Limit can range between 1 and 100, and the default is 20.source

Sort order by the created_at timestamp of the objects. asc for ascending order and desc for descending order.source

A cursor for use in pagination. after is an object ID that defines your place in the list. For instance, if you make a list request and receive 100 objects, ending with obj_foo, your subsequent call can include after=obj_foo in order to fetch the next page of the list.source

A cursor for use in pagination. before is an object ID that defines your place in the list. For instance, if you make a list request and receive 100 objects, starting with obj_foo, your subsequent call can include before=obj_foo in order to fetch the previous page of the list.source

Filter messages by the run ID that generated them.source

Returns

A list of message objects.source

Example request
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curl https://api.openai.com/v1/threads/thread_abc123/messages \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -H "OpenAI-Beta: assistants=v2"
Response
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{
  "object": "list",
  "data": [
    {
      "id": "msg_abc123",
      "object": "thread.message",
      "created_at": 1699016383,
      "assistant_id": null,
      "thread_id": "thread_abc123",
      "run_id": null,
      "role": "user",
      "content": [
        {
          "type": "text",
          "text": {
            "value": "How does AI work? Explain it in simple terms.",
            "annotations": []
          }
        }
      ],
      "attachments": [],
      "metadata": {}
    },
    {
      "id": "msg_abc456",
      "object": "thread.message",
      "created_at": 1699016383,
      "assistant_id": null,
      "thread_id": "thread_abc123",
      "run_id": null,
      "role": "user",
      "content": [
        {
          "type": "text",
          "text": {
            "value": "Hello, what is AI?",
            "annotations": []
          }
        }
      ],
      "attachments": [],
      "metadata": {}
    }
  ],
  "first_id": "msg_abc123",
  "last_id": "msg_abc456",
  "has_more": false
}