Verify users with SMS, voice, flash-calls, and data

Java SDK

Learn how to use the Verification SDK for Java

API Reference

Read the full API specification


Sinch offers a platform for phone number verification. It consists of different software development kits (the Sinch SDKs) that you integrate with your smartphone or web application and cloud based back-end services. Together, they enable SMS, Flashcall, Callout and Data verification in your application.