Discoverable credentials (also called resident keys or passkeys) are stored directly on the authenticator, such as a security key, smartphone, or a laptop's built-in authenticator. They allow users to sign in without needing to remember or enter a username, since the authenticator can identify the account. This makes them ideal for fully passwordless authentication experiences.

This page demonstrates the use of discoverable credentials. You'll need to type a username and a display name during sign-up. For subsequent sign-ins, neither your username nor any other identifier will be required, as the authenticator will provide the necessary information.