Documentation
Guides for OTP issuance, validation, and phone intelligence checks.
Issue one-time passcodes for login, transaction approval, and account recovery.
Check SIM activity and risk signals before approving an account or transaction.
Deliver OTP codes via SMS with configurable expiry and attempt limits.
Fall back to spoken OTP delivery when SMS is unavailable or filtered.
Send OTP codes through WhatsApp for higher delivery rates in supported markets.
Combine OTP with phone intelligence to block high-risk accounts at onboarding.
Receive verification outcomes pushed to your endpoint in real time.
Understand throughput limits and how to handle 429 responses.