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.

Twilio's Verify API validates users over popular channels
Twilio Verify Logo

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.

New Feature

Verify now includes Fraud Guard

Verify now includes Fraud Guard, a powerful solution that boosts SMS 2FA conversion rates by avoiding artificially inflated traffic attacks before they happen, lowering per-user costs. Fraud Guard has been important in protecting Verify users from SMS pumping fraud, saving our customers over $26 million in fraud charges.

Learn more about Fraud Guard

Laptop computer with security lock

Reduce fraud at scale without the workload

Diagram of how the Twilio Verify API works

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


Security password form field

Seamless user authentication for your whole customer journey

 

Onboarding and signup

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

Verify identifiying your logging credential

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

Transacting

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

Fraud Guard

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

Capabilities


Lightbulb idea

A simple solution to passwordless verification at scale

Scalable

Skip the challenges of scaling with an API that validates over 3.5 billion users per year—including for Black Friday and the Super Bowl.

  • Send personalized messages globally using a certified pool of high-capacity numbers pre-provisioned for Verify API.

  • Improve delivery rates with carrier-approved messages templates that automatically translate across 42 languages.

  • Optimize customer experience, conversions, and security using built-in tools for compliance, analytics, and reporting.

Verify is your simple solution to validate users at-scale
Silent Network Authentication confirms phone number possession without interrupting the user flow.

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

“With Twilio Verify, our customers reach the next level of protection for their financial transactions, with a frictionless user experience.”

Dominic Heyden Cofounder and CTO

“Integration [with Verify API] was extremely fast, it was a nice surprise. We aren’t used to being able to integrate with a third party so easily.”

Pablo Abad Head of Site Security

Pricing


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.