Message status, history & resend

Get a single message

curl https://api.wezend.com/v1/messages/msg_01H8... \
  -H "X-API-Key: $WEZEND_API_KEY"

{
  "message_id": "msg_01H8...",
  "status": "delivered",
  "channel": "sms",
  "to": "+4512345678",
  "fallback_used": false,
  "sent_at": "2026-07-08T10:00:01.000Z",
  "delivered_at": "2026-07-08T10:00:04.000Z",
  "cost": 0.045,
  "currency": "EUR"
}

Search history

GET /v1/messages/history supports search (matches recipient, body or vendor message ID), status, channel, page and limit (max 100/page) query parameters.

Resend

POST /v1/messages/:id/resend creates a new message to the same recipient with the same content — it runs through the same balance, suppression and budget checks as a fresh send.

Cancel a scheduled message

DELETE /v1/messages/:id cancels a message that's still queued (i.e. scheduled ahead via scheduled_at and not yet dispatched). Returns 409 if it has already been sent.