Easily verify users at signup by confirming phone number ownership, reducing fraudulent accounts and speeding up account onboarding.
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. Authy phone verification stops accounts from being created by bots, and can reduce fraud and associated costs by blocking Premium, and Toll-Free numbers.
Authy 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 country code, or you can override and choose the language.
Delivered as a modern REST API, you can implement the Authy 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. Authy enables us to move quicker and focus on building the best experience for our users.
Sometimes you want to add in an extra piece of information into the authentication SMS message or just add your name for clearer branding. Authy allows you to fully customize the message to your needs.
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.
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. (Note: only available in certain geographies.)
Delivery to 205 countries. The Authy service is built on a world class communications platform, allowing for high rates of SMS and voice delivery around the world. Works with both landlines and mobile devices.
Pay only for verifications
With Authy 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.
We comply with changing carrier and country regulations and use multiple short and long codes and registered sender IDs to ensure your verification messages are not filtered out.
Authy 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
Authy 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.
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.
Program in the language you already use with libraries available from Twilio and its community.
Manage user permissions with unique access roles for admins, developers, support and billing.
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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.
Use the same platform you know for voice, messaging, video, chat, two-factor authentication, and more.
Get to market faster with pay-as-you-go pricing, free support, and the freedom to scale up or down without contracts.