## Send a voice memo to a chat

**post** `/v3/chats/{chatId}/voicememo`

Send an audio file as an **iMessage voice memo bubble** to all participants in a chat.
Voice memos appear with iMessage's native inline playback UI, unlike regular audio
attachments sent via media parts which appear as downloadable files.

**Supported audio formats:**

- MP3 (audio/mpeg)
- M4A (audio/x-m4a, audio/mp4)
- AAC (audio/aac)
- CAF (audio/x-caf) - Core Audio Format
- WAV (audio/wav)
- AIFF (audio/aiff, audio/x-aiff)
- AMR (audio/amr)

### Path Parameters

- `chatId: string`

### Body Parameters

- `attachment_id: optional string`

  Reference to a voice memo file pre-uploaded via `POST /v3/attachments`.
  The file is already stored, so sends using this ID skip the download step.

  Either `voice_memo_url` or `attachment_id` must be provided, but not both.

- `voice_memo_url: optional string`

  URL of the voice memo audio file. Must be a publicly accessible HTTPS URL.

  Either `voice_memo_url` or `attachment_id` must be provided, but not both.

### Returns

- `voice_memo: object { id, chat, created_at, 5 more }`

  - `id: string`

    Message identifier

  - `chat: object { id, handles, is_active, 2 more }`

    - `id: string`

      Chat identifier

    - `handles: array of ChatHandle`

      Chat participants

      - `id: string`

        Unique identifier for this handle

      - `handle: string`

        Phone number (E.164) or email address of the participant

      - `joined_at: string`

        When this participant joined the chat

      - `service: ServiceType`

        Messaging service type

        - `"iMessage"`

        - `"SMS"`

        - `"RCS"`

      - `is_me: optional boolean`

        Whether this handle belongs to the sender (your phone number)

      - `left_at: optional string`

        When they left (if applicable)

      - `status: optional "active" or "left" or "removed"`

        Participant status

        - `"active"`

        - `"left"`

        - `"removed"`

    - `is_active: boolean`

      Whether the chat is active

    - `is_group: boolean`

      Whether this is a group chat

    - `service: ServiceType`

      Messaging service type

  - `created_at: string`

    When the voice memo was created

  - `from: string`

    Sender phone number

  - `status: string`

    Current delivery status

  - `to: array of string`

    Recipient handles (phone numbers or email addresses)

  - `voice_memo: object { id, filename, mime_type, 3 more }`

    - `id: string`

      Attachment identifier

    - `filename: string`

      Original filename

    - `mime_type: string`

      Audio MIME type

    - `size_bytes: number`

      File size in bytes

    - `url: string`

      CDN URL for downloading the voice memo

    - `duration_ms: optional number`

      Duration in milliseconds

  - `service: optional ServiceType`

    Messaging service type

### Example

```http
curl https://api.linqapp.com/api/partner/v3/chats/$CHAT_ID/voicememo \
    -H 'Content-Type: application/json' \
    -H "Authorization: Bearer $LINQ_API_V3_API_KEY" \
    -d '{
          "voice_memo_url": "https://example.com/voice-memo.m4a"
        }'
```

#### Response

```json
{
  "voice_memo": {
    "id": "69a37c7d-af4f-4b5e-af42-e28e98ce873a",
    "chat": {
      "id": "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e",
      "handles": [
        {
          "id": "550e8400-e29b-41d4-a716-446655440000",
          "handle": "+15551234567",
          "joined_at": "2025-05-21T15:30:00.000-05:00",
          "service": "iMessage",
          "is_me": false,
          "left_at": "2019-12-27T18:11:19.117Z",
          "status": "active"
        }
      ],
      "is_active": true,
      "is_group": true,
      "service": "iMessage"
    },
    "created_at": "2019-12-27T18:11:19.117Z",
    "from": "+12052535597",
    "status": "queued",
    "to": [
      "+12052532136"
    ],
    "voice_memo": {
      "id": "550e8400-e29b-41d4-a716-446655440000",
      "filename": "voice-memo.m4a",
      "mime_type": "audio/x-m4a",
      "size_bytes": 524288,
      "url": "https://cdn.linqapp.com/voice-memos/abc123.m4a",
      "duration_ms": 15000
    },
    "service": "iMessage"
  }
}
```