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.

Illustration showing how a business can use Verify to authenticate a user’s identity as an account security measure.

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.

Introducing Silent Network Authentication

Now you can confirm phone number possession without interrupting the user flow. Protect end users, accounts, and transactions with secure authentication that doesn’t require users to wait or leave your app.

How Silent Network Authentication makes onboarding painless

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

Onboarding and signup

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

Logging in

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

Transacting

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

Managing accounts

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

Confirming number and email owners

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

Fraud Guard

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

Capabilities

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.

Explore Verify API docs

Twilio helping on making your product safer

Secure

Mitigate fraud at any scale with native anti-fraud tools and insights backed by the peerless protection of the Twilio Super Network.

Prevent SMS fraud with automatic traffic monitoring that detects and blocks suspected fraud.
Customize rate limits, geo-permissions, and other fraud controls in your Twilio Console dashboard.
Enhance security and user insights with up-to-date phone data intelligence from Twilio’s Lookup API.

Explore the Lookup API

Simple

Easily integrate Verify into your app with its developer-first APIs and client libraries for a quick and confident deployment.

Implement in as little as one sprint using sample code and best practice tutorials.
Customize code generation, message templates, sender IDs, and more.
Monitor delivery rates, conversions, and latency via Twilio Console and APIs.

Explore Code Exchange quick deploy

Verify integration into your app with its APIs

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.

See pricing Talk to sales