Check sender-ID compliance for a country
Compliance
Check sender-ID compliance for a country
Validates whether a given sender ID can be used to send SMS into a target country before you attempt delivery. Pass the sender_id and a 2-letter ISO country code; the response reports whether the sender is supported, the registration posture, any required documents, a suggested alternative when alphanumeric IDs are blocked, and human-readable notes. Use it in a sending UI to warn operators early instead of surfacing a carrier rejection after the fact.
GET
Check sender-ID compliance for a country
Authorizations
Dashboard JWT token from Clerk
Query Parameters
Alphanumeric or numeric sender ID to validate (max 15 GSM chars).
Maximum string length:
15ISO 3166-1 alpha-2 destination country code (e.g. GB, US).
Required string length:
2