Authnkey - FIDO Bridge
TOKEN2 Productivity
Full passkey support for FIDO2 keys
- Rating
- 4.9
- 22 ratings
- Downloads
- 1K+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Aug 25
- 2026 · v1.2.6
Screenshots
About Authnkey - FIDO Bridge
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
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
What’s new
Version 1.2.6 · Updated August 25, 2026
- Show progress and errors while loading passkeys in credential management - Add a button to copy device info to the clipboard - Show clearer errors when NFC or USB communication fails - Report the transports advertised by the key when creating a passkey - Detect when the security key is unplugged - Fix sign-in on accounts with many passkeys
User reviews
my yubikey was crashing my Samsung s25. this app solved my struggles using yubikey USB c with samsung
This app that shall be in android. There are no ads and it even works with feitian keys. The registration and auth flow are the missing things in android. Hats off for the dev.
This works great, thank you so much!
Works great
bridges a gap android hasnt fixed in 3 major releases now
Very easy to use and made my YubiKeys work great for everything over NFC. It would be nice to see Material You theming added.
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| App | Rating | Price | Installs | Last updated | Compare |
|---|---|---|---|---|---|
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