Legacy Device API
Cloud vs Device
Choose the channel that matches your product needs. Prefer API v1 for either path.
| Feature | Cloud API | Device API This API |
|---|---|---|
| Connection | Meta Business / Cloud number | QR scan with WhatsApp app |
| Identifier | from_number / account id |
instance_id required on every call |
| Templates | Meta-approved templates outside 24h | Free-form messaging (no Meta template approval) |
| Best for | Production SaaS, OTP, campaigns | Fast QR setup / personal business lines |