Welcome to Passage Passkey Flex Docs
What is Passkey Flex?
Passkey Flex provides passkey authentication support to existing authentication systems. It handles the hard parts of incorporating the WebAuthn API (opens in a new tab) and provides a simple, clean solution to take your authentication to the next level.
Utilize Passkey Flex during login and registration or as added security on secure user actions. Passkey Flex is supported in all languages, frameworks, and platforms.
Install Passkey Flex
Use cases
Passkey Flex SDKs
Web & Mobile Clients
Passkey Flex client SDKs communicate with the WebAuthn API (opens in a new tab). This allows you to make use of platform authenticators built into user devices.
Backend
Passkey Flex backend SDKs communicate with the WebAuthn API and Passage API. The Passage API only stores the external identifiers you create for your users. Passage uses these to create WebAuthn credentials to authenticate and register passkeys. Passage does not store any sensitive user data.