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Twilio Verify API

Simplify authentication at scale with Verify API

Validate users over SMS and popular channels to reduce fraud with a fully-managed API that does the heavy lifting for you.

User receiveing code to his phone to unlock his laptop

A multi-channel user verification solution
in one turnkey API

Add seamless two-factor authentication to your onboarding and login flow with a single API that does the work of a full one-time password (OTP) delivery solution.

Reduce fraud at scale
without the workload


Build with out-of-the-box convenience

Quickly integrate a ready-use solution that handles all your connectivity, channels, code generation, fraud monitoring, and more using native software—so you don’t have to.

Mitigate fraud seamlessly

Reduce fraud across your multi-channel user experience with phone number verification that uses one API endpoint to validate users and detect fraud with minimal friction.

Optimize OTP conversions

Ensure global deliverability via preferred channels like SMS, voice, email, WhatsApp, push, silent device approval, and time-based one-time password (TOTP).

Use cases

Seamless user authentication
for your whole customer journey

Verify providing secure user experience

Onboarding and signup

Offer a seamless, secure experience across channels that prevents fake account creation and drives conversions.

Verify identifiying your logging credentials

Logging in

Protect your authentication flows to prevent account takeovers, and bolster end-user trust and loyalty.

Verify securing all the trasactions that are made


Protect high-value transactions and purchases to reduce payments fraud globally.

Verify validating password resets

Managing accounts

Validate password resets, device changes, user reactivation, and other account changes to boost retention.

Verify confirming that your number is the right one

Confirming number and email owners

Confirm possession of phone numbers and emails to ensure reliable end-user communication at scale.

Verify preventing fraud

Preventing fraud

Block fraud by detecting artificially-inflated SMS traffic with automated, built-in fraud detection tools.


A simple solution to
passwordless verification at scale

illustration of how Authy can validate your credentials

Offer users a convenient security experience with Twilio Authy

Simplify your users’ verification process with the top consumer authentication app, Twilio Authy. Works with Verify API to support multi-device syncing, cloud backups, and fast account recovery across channels, including push and TOTP.

Download for Android, iOS, and desktop.

Twilio Verify greatly reduces our own support costs, over other verification methods. It’s a no brainer ... having Twilio as the backend for our authentication just allows us to keep growing without any concern

Suhas Joshi, Engineering Manager, Stripe


Reduce fraud and overhead with
a fully-managed verification API

Sign up for free to start building without commitments. Only pay for each successful verification with Twilio’s flexible pay as you go pricing.