OTP

Sender IDs

The sender IDs your account can send from. Registering one happens in the console, where we review it.

GEThttps://api.siellabs.com/v1/senders

GEThttps://api.siellabs.com/v1/senders/{id}

GET /v1/senders takes status: pending, approved or rejected.

200 OK

{
  "data": [
    {
      "id": "1a7c4e02-55b3-4f8e-a2d1-90c3b6e7f412",
      "sender": "YourBrand",
      "status": "approved",
      "use_case": "Sign-up codes",
      "countries": ["GB", "DE"],
      "review_note": null,
      "fee_micros": 25000000,
      "created_at": "2026-11-02T09:15:02Z",
      "reviewed_at": "2026-11-02T11:40:10Z"
    }
  ]
}

See Sender IDs for what makes a good one, and register yours on Sender IDs in the console.