​

Declared webhook events

• sms.otp Successful OTP send. Uses the message payload shape plus data.otp.
• message.sent SMS accepted by the provider after dispatch.
• message.batch Batch summary emitted when no batch messages remain pending and at least one stored message row reached SENT.
• message.queued Immediate SMS persisted in queue before provider dispatch.
• message.failed SMS or OTP send failed. Includes data.error.
• message.canceled Cancelable future-delivery SMS was canceled.
• message.delivered Provider confirmed the final delivery of the message.
• message.received Inbound message received and normalized by Rewrite.
• message.scheduled Message accepted with a future scheduledAt.

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Shared envelope

{
  "id": "748395130237498900",
  "createdAt": "2026-03-19T18:42:11.000Z",
  "sandbox": false,
  "type": "message.sent",
  "data": {}
}

• id: webhook event snowflake
• createdAt: event creation timestamp
• sandbox: whether the event originated from a sandbox project
• type: event name
• data: event-specific payload