What Is Verify API and Why Is It Helpful?

The Verify API is Vonage’s next-generation two-factor authentication (2FA) solution. It expands on traditional authentication methods by supporting a wider range of channels, including over-the-top (OTT) channels like WhatsApp, as well as SMS, Voice, and Email.

Verify introduces event callbacks and summary callbacks that enable deeper integrations and greater customization. For example:

• You can configure a webhook to receive summary callbacks, providing detailed insights into which channels successfully converted and which ones did not.
• Event callbacks enable advanced user experiences, such as the WhatsApp Codeless flow. In this case, an end-user can simply tap a button within a WhatsApp message to authenticate, triggering an event callback to your backend to continue the verification flow.

To see more how our Vonage Verify API can be used in real life, refer to these articles and use cases:

• Verify Users with Vonage APIs
• Customer Verification APIs Made Clear: A Full Guide to Benefits and How They Work
• OTP-Based (JWT) Authentication in Spring Boot With Vonage Verify API
• Improve Your Multifactor Auth With Vonage APIs and Firebase
• Add Strong PSD2 Authentication to Your Application