Introduction to the Frontend SDKs

Our Frontend SDKs are available for Android, iOS, Web, and React Native. They enable you to:

Collect device signals to strengthen verification and reduce fraud.
Perform silent verification to verify phone numbers without asking users to enter a code.

The Frontend SDKs currently can integrate with the Verify and Watch APIs.

How device signal collection works

Capture device signals

The Frontend SDK collects device signals and dispatches them to Prelude.

Dispatch ID creation

Prelude generates a Dispatch ID from those signals and returns it to the SDK.

Dispatch ID usage

Forward the Dispatch ID to your backend and include it in requests to Prelude’s Verify or Watch APIs.