What problem does it solve?
Adding phone or email verification and two-factor authentication to an application requires managing code generation, delivery, expiry, rate limiting, and fraud protection. This Skill guides you through the Twilio Verify API so you can implement the full OTP lifecycle without building that infrastructure yourself.
Core Features & Use Cases
- Multi-channel OTP delivery: Send verification codes over SMS, voice, email, WhatsApp, or RCS by changing a single
channel parameter, with automatic WhatsApp-to-SMS fallback.
- Verification checks and service configuration: Check submitted codes against the Verify Service and configure code length, TTL, lookup validation, and single-use enforcement.
- Built-in fraud protection: Leverage Fraud Guard, rate limiting, and geo-permissions to defend against SMS pumping and international OTP fraud.
- Use Case: You are adding two-factor authentication to a web app. Use this Skill to create a Verify Service, send a code to the user's phone at login, and approve the session only when the verification check returns
approved.
Quick Start
Ask the AI to create a Twilio Verify Service and send an SMS verification code to a phone number, then check the code the user submits.
