SafeKey FIDO Bridge is a credential provider that lets you use FIDO2 security keys for passkey authentication on Android via NFC.
Android has natively supports FIDO2 security keys over NFC, but its implementation can cause compatibility issues with some authenticators due to its use of extended APDU commands. Android also provides no native way to manage a security key's PIN or the passkeys stored on it, and no native way to use a passkey over NFC at all. SafeKey FIDO Bridge fixes that. It provides the full CTAP2 protocol directly, so your key gains:addresses these limitations by communicating directly with the security key using standard APDU commands, avoiding the extended APDU compatibility issues in Android's native implementation.
Install it, enable it as a passkey provider in your phone's settings, and use passkeys anywhere Android's Credential Manager is supported.
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