## Generate Session Title

**post** `/api/v1/chat/{session_id}/title`

Generate a title for a session from its first user message.

### Path Parameters

- `session_id: string`

### Query Parameters

- `organization_id: optional string`

- `project_id: optional string`

### Cookie Parameters

- `session: optional string`

### Body Parameters

- `first_message: string`

  First user message of the session, used to infer a short title.

### Returns

- `last_updated_at: string`

  ISO-format timestamp showing when the session was last updated.

- `session_id: string`

  Unique session identifier.

- `generated_title: optional string`

  Auto-generated title derived from the first user message.

- `index_ids: optional array of string`

  Indexes this session is bound to. Null on unbound sessions.

- `job_metadata: optional object { duration_ms, error, export_config_ids, 4 more }`

  Token usage and status from the most recent run. Null if the session has not been run yet.

  - `duration_ms: optional number`

  - `error: optional string`

  - `export_config_ids: optional array of string`

  - `is_error: optional boolean`

  - `total_input_tokens: optional number`

  - `total_output_tokens: optional number`

  - `turns: optional number`

### Example

```http
curl https://api.cloud.llamaindex.ai/api/v1/chat/$SESSION_ID/title \
    -H 'Content-Type: application/json' \
    -H "Authorization: Bearer $LLAMA_CLOUD_API_KEY" \
    -d '{
          "first_message": "What were the main findings in Q3?"
        }'
```

#### Response

```json
{
  "last_updated_at": "2026-04-22T12:34:41.342245",
  "session_id": "ses-abc123",
  "generated_title": "What were the main findings in Q3?...",
  "index_ids": [
    "idx-abc123",
    "idx-def456"
  ],
  "job_metadata": {
    "duration_ms": 0,
    "error": "error",
    "export_config_ids": [
      "string"
    ],
    "is_error": true,
    "total_input_tokens": 0,
    "total_output_tokens": 0,
    "turns": 0
  }
}
```