Nexmo Verification API allows developers to integrate their applications with the Nexmo Verification services, enabling their users to verify phone numbers directly from their applications. Nexmo is one of the companies that provides customers a way to communicate with one another domestically and internationally.
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A cornerstone feature of any Web application is the login page. This article take you step by step through the process of adding phone number powered second factor authentication (2FA) to a Web application by taking advantage of Nexmo's Verify API. This tutorial requires knowledge of PHP.