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Clef API - How To

The Clef API allows developers to integrate Clef's two-factor authentication service into their applications. This authentication service uses no passwords or tokens. Instead, the end user simply holds their smartphone in front of their computer screen to authenticate. Clef also uses Apple's Touch ID technology to identify the user's fingerprints. If the user's device doesn't support Touch ID, a PIN can be substituted, so there's always a second authentication factor.