Get More Out of Your 2FA Solution With Verify V2
Customers all over the globe are using phone numbers to quickly establish identity and provide security to their applications and platforms. Vonage has made it even easier — and you can now access this powerful tool!

Simplifying Two-Factor Authentication
At Vonage, we help hundreds of businesses send millions of 2FA requests in all major regions, including North and South America, Europe, and Asia.
Our customers tell us they’re aware of the multitude of authentication options available — from less expensive options like email to more expensive (and more complex) soft tokens, SDKs, and even hard tokens like physical key fobs.
But there’s one simple, easy-to-use API that removes the complexity of 2FA at a global scale. Our turnkey Verify API can be tested in a matter of minutes and scaled globally in just hours.
We’re excited to announce Verify V2 is now available! We’ve been working hard to enhance Verify V2, making it an even more powerful two-factor authentication tool for developers and businesses. To get started, simply refer to the developer documentation.
New Channels for Authentication
Verify V2 offers both a streamlined user experience and superior fraud protection. There are new paths to user authentication, in addition to the current SMS and voice (TTS) channels.
With more than 2.2 billion active users, WhatsApp is a popular channel all over the world, connecting people over a basic internet connection and serving as a great primary or secondary channel to SMS. WhatsApp has also proven itself to be a secure way to authenticate end-users, which is why we have added WhatsApp as a channel for Verify V2.
The WhatsApp channel integrates seamlessly into our channel lineup for delivering one-time passwords (OTPs). WhatsApp differentiates the end-user experience because it can work on both cellular data or wi-fi. This improves your application’s conversion rate since you don’t have to worry about network congestion like you normally would with SMS. Verify V2 automates the WhatsApp Business Account (WABA) setup process by offering a shared Vonage account. Or if you already have your own WABA, then you can configure Verify V2 to use it — which improves your brand recognition over WhatsApp.
You can also take a step beyond and allow users to authenticate over WhatsApp without the need of an OTP. With WhatsApp Interactive, users don’t need to memorize a code, they simply press "yes" or "no" within WhatsApp to verify their identity.
Email is available as an additional verification channel to supplement SMS, voice, and WhatsApp. Whenever a user is unable to verify using their phone, an OTP can be sent to their email address in order to authenticate, providing even more flexibility. Customers have the option to integrate their own email domain within the email channel as part of Verify V2.
Fraud Protection
The threat of fraudulent traffic is a constant issue, but the new Verify V2 Anti-Fraud System protects customers using the latest security features. The system runs semi-autonomously by monitoring customers' networks and takes action when it detects unusual traffic, protecting businesses from toll fraud. If a network block occurs and SMS or voice is not available, the additional Verify V2 authentication channels, such as WhatsApp or email, will function as normal. When safe, customers can easily use self-service to restore their networks using the Network Unblock API.
Improved Product Flexibility
Developers can now control how one-time passcodes are delivered using the "type" and "number" strings within the "to" array of Verify V2. This means applications can deploy 2FA in a manner that best suits end-users' preferences.
Event and summary callbacks have been added, allowing for a multitude of integration and customization opportunities. Webhooks can be configured using applications from the customer dashboard related to Verify requests, which will display information such as failed, completed, or expired. In addition, when fraudulent activity is detected and a network block occurs, a callback provides information on the blocked status and the reason.
Pricing
Verify V2 is available for use with the Verify Conversion pricing model. This model only changes for successful verifications, plus messaging and voice rates. You will also have the option to generate and manage your own PIN code. The simplified Verify Success pricing model provides you with 1 all-in charge for successful verifications.
Start using Verify V2 and our new authentication channels by clicking on the link below!
Verify V1 vs. V2
Feature
Verify V1
Verify V2
One-time passcode generation
Yes
Yes
Bring your own code
Yes
Yes
SMS Sender ID management
Yes
Yes
Voice Sender ID management
Yes
Yes
Workflows
Yes
Yes
Channel failover
Yes
Yes
Fraud management
Yes
Yes
Callbacks
No
Yes
SMS integration
Yes
Yes
Voice integration
Yes
Yes
WhatsApp integration
No
Yes
WhatsApp_Interactive integration
No
Yes
Email integration
No
Yes