Authnkey

Passkey credential provider for hardware security keys
AppID:pl.lebihan.authnkey
Author:Michel Le Bihan
License:MIT
Donation:
InRepoSince:2025-12-14
LastRepoUpdate:2026-08-05
LastAppUpdate:Unknown
LastVersion:1.2.5
Categories:Password & 2FA, Security, System
APK source:
icon 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.

WhatsNew:

- Sort passkeys by domain in credential management
- Show a hint with a shortcut to system settings when NFC is turned off
- Adapt key connection instructions to the methods the device can use
- Update privileged apps list, adding Waterfox among others

New translations:
- Polish
- Spanish by Cyant

Download Source Issues Translation
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While you can download the APKs here directly, you should preferably use an F-Droid client so the app stays up-to-date on your device.

Packages

Version 1.2.5 (2026-08-05) no RB details available help icon

Android Versions:
  • Target: 17.0
  • MinVer: 14.0

Download (2.7 M)

Version 1.2.4 (2026-06-18) no RB details available help icon

Version 1.2.3 (2026-04-14) no RB details available help icon