Authnkey - FIDO Bridge
Authnkey - FIDO Bridge Summary
Authnkey - FIDO Bridge is a free Android app in Productivity by TOKEN2. Released in Dec 2025 (7 months ago). It has about 1.5K+ installs and 20 ratings with a 4.88★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 182 monthly active users . Store last updated Aug 6, 2026
Recent activity: 47 installs this week (239 over 4 weeks) showing above average growth View trends →
Authnkey - FIDO Bridge SDKs Summary
App not yet scanned for SDKs.
4.88★
Ratings: 20
Screenshots
App Description
Full passkey support for FIDO2 keys
Authnkey is a credential provider that lets you use FIDO2 security keys (like YubiKey, SoloKey, Nitrokey, or Token2) for passkey authentication on Android.
Many security keys don't fully work on Android: no PIN entry, no passkeys, just basic tap-to-authenticate.
Authnkey fixes that.
Install it, enable it in your phone's settings, and your FIDO2 security key or smartcard gains full passkey support over NFC and USB, including PIN and fingerprint verification and stored passkeys.
You can also manage your key right from the app: view and delete stored passkeys, and set or change its PIN.
Requires Android 14+ and a FIDO2-compatible security key or smartcard.
GitHub Repo:
https://github.com/mimi89999/Authnkey