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Verify features

Easily verify users at signup by confirming phone number ownership, reducing fraudulent accounts and speeding up account onboarding.

  • Increased conversions

    Collect just a phone number and quickly verify account ownership, leading to quicker and easier signups.

  • Prevent fraud and spam

    Verify a real person is registering by leveraging the phone in their hand. Not verifying users at sign up can lead to bad actors in your system. Twilio Verify stops accounts from being created by bots, and can reduce fraud and associated costs by blocking premium and toll-free numbers.

  • Multi-language

    Verify translates both SMS and voice verifications into 29 languages, allowing for increased global usability. The service automatically selects the right translation based on the phone number locale code, or you can override and choose the language.

  • Fast implementation

    Delivered as a modern REST API, you can implement the Verify solution in a single sprint without worrying about availability, reliability or service security. We handle that for you. Just sign up and get started within minutes. Everything can be accessed immediately; we don’t hide our API behind a sales person.

The less complexity we have to manage, the faster we can move. Twilio enables us to move quicker and focus on building the best experience for our users.

  • Privacy

    Verifying a number doesn’t require us to persistently store information about your customers, therefore we ensure our platform doesn’t maintain personally identifiable information.

  • Customizable code length

    Choose the right level of security for your application and increase usability by specifying between 4 - 10 digits for the verification code.

  • Device-only delivery

    We ensure that the SMS only goes to a real handset and not to web portals, reducing the risk of compromised desktops in the authentication chain.

  • Global delivery

    Delivery to 195 locales. The Verify service is built on a world class communications platform, allowing for high rates of SMS and voice deliveryaround the world. Works with both landlines and mobile devices.

  • Pay only for verifications

    With Verify you only pay for verified requests. We use a high quality SMS platform and automatically select the right route across our network of aggregators and carriers, giving us confidence to only charge you when the verification is complete.

  • Carrier-proof

    We comply with changing carrier and locale regulations and use multiple short and long codes and registered sender IDs to ensure your verification messages are not filtered out.

  • High performance

    Twilio performance dynamically scales up and down as volume requires. We typically handle hundreds of verification requests per second. We also use positive feedback to replace failing routes on the fly.

  • Millions and billions

    Twilio services applications with millions of users, for customers such as Twitch, Coinbase and SendGrid. We handle billions of API calls with a solution designed to scale as you do.

  • Documentation

    We have all the information you need to start building. Get unstuck quickly with tutorials, sample code, and extensive API documentation. Plus, we provide example cURL commands and POSTMAN samples to accelerate your engineering efforts.

  • Helper libraries

    Program in the language you already use with libraries available from Twilio and its community.

  • Access roles

    Manage user permissions with unique access roles for admins, developers, support and billing.

Large companies rely on Twilio Verify
  • SmarterKey opens doors by simply sending a text message with Twilio

    Guests use the SmarterKey app on their phone along with SMS verification to access rental properties.

    More about SmarterKey
  • IS goes places with phone verification from Twilio

    Cross-platform location-based IS app uses Twilio’s Verify for trust and privacy, so friends and family can easily meet up and keep up.

    More about IS
  • Gaming forum uses Verify to pwn scammers and rogues

    EpicNPC, leading online game marketplace home to 495,000 members, uses Twilio’s Verify to protect site and members from unwanted visitors.

    More about EpicNPC

The Twilio advantage

Communicate reliably

Experience a 99.95% uptime SLA made possible with automated failover and zero maintenance windows.

Operate at scale

Extend the same app you write once to new markets with configurable features for localization and compliance.

Many channels

Use the same platform you know for voice, SMS, video, chat, two-factor authentication, and more.

No shenanigans

Get to market faster with pay‑as‑you‑go pricing, free support, and the freedom to scale up or down without contracts.