Message sent

Incoming webhook deliveries are authenticated with HMAC signature headers (X-Chatway-Signature and X-Chatway-Timestamp), not your Chatway API key.

An agent sent a new message.

Triggered when an agent sends a message from the dashboard or API (including POST /messages).

Internal notes, reminders, and system messages are not included.

data.agent is always present on this event. Dashboard sends use the signed-in agent. API sends use the agent_id on the stored message (include agent_id in POST /messages for agent-originated replies).

Use message.sent to add agent replies to an external transcript or record response activity. Match the message with data.message.id, the conversation with data.conversation.id, and the sender with data.agent.id. Your own agent-originated API reply can generate this event. To avoid a reply loop, start automatic visitor replies from Message received. Use Get Agent when you need the sending agent's details.

For signature verification and retries, see Webhooks overview.

POST webhook: message.sent

Parameters

Request body

Signed JSON envelope for this event.

application/json

• id (string, required) — Stable event ID (`evt_…`). Same across HTTP retries for this notification.
• event (string, required) — Event name. For this webhook, always `message.sent`.
• data (object, required) — Payload for message.sent.
  • message (object, required)
    • id (string (uuid), required) — Message ID.
    • content (string) — Message text. May be omitted when attachments are present.
    • attachments (array<object>, required) — Zero or more attachment objects. Each item has `content` (URL), optional `type`, `mime`, `original_file_name`, and `size` (bytes)—see Webhooks overview → Field reference → Attachment.
      • content (string, required) — Public URL of the file (up to 2048 characters).
      • type (string) — Logical type (for example image, file, video).
      • mime (string) — MIME type when known.
      • original_file_name (string) — Original filename when available.
      • size (integer|null) — Size in bytes when known.
    • created_at (string (date-time), required) — When the message was created.
  • conversation (object, required)
    • id (string (uuid), required) — Conversation ID.
    • channel (string, required) — Normalized channel.
    • status (string, required) — Conversation status.
    • widget_name (string) — Present when the conversation is tied to a website widget.
    • identifier (string) — Widget identifier when widget_name is present.
  • visitor (object, required)
    • id (string (uuid), required) — Visitor/contact ID.
    • name (string) — Visitor name. Omitted when empty.
    • email (string|null, required) — Visitor email. Always present; null when unknown.
    • phone (string|null, required) — Visitor phone. Always present; null when unknown.
  • agent (object, required) — Agent who sent the message. Always present on message.sent (dashboard agent or POST /messages `agent_id`).
    • id (string (uuid), required) — Agent ID.
    • name (string, required) — Agent display name.
    • email (string) — Agent email when available.
• occurred_at (string (date-time), required) — When the business event occurred.
• version (string, required) — Payload schema version.

Responses

200

Return any 2xx status to acknowledge receipt.

410

Optional HTTP 410 Gone to signal the endpoint is permanently unavailable. Like every non-2xx response below 500 (including 408 and 429), it is not retried. It does not disable the subscription; turn the webhook off in Chatway Settings if you want deliveries to stop.

Examples

Request body example

{
    "id": "evt_1234567890abcdef1234567890abcdef",
    "event": "message.sent",
    "data": {
        "message": {
            "id": "a1b2c3d4-e5f6-4789-a012-3456789abcde",
            "content": "Happy to help! Let me look into that for you.",
            "attachments": [],
            "created_at": "2026-02-04T10:32:00Z"
        },
        "conversation": {
            "id": "0f46c0a1-8938-40e3-b2b5-bb56f569fcab",
            "channel": "website",
            "status": "open",
            "widget_name": "Main site widget",
            "identifier": "eouqtiupanm6uvglwshy"
        },
        "visitor": {
            "id": "9b0c5fe6-35ad-459d-b6ba-4288191f84f1",
            "name": "John Doe",
            "email": "[email protected]",
            "phone": "+1XXXXXXXXXX"
        },
        "agent": {
            "id": "26fa75f2-7ac1-47b4-84e1-b943491ba4da",
            "name": "Sarah Chen",
            "email": "[email protected]"
        }
    },
    "occurred_at": "2026-02-04T10:32:00Z",
    "version": "2026-09"
}