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Passchain

Name: Passchain
Author: S1m

S1m

Use security key with Bluetooth, NFC, USB or your phone secure element

Security & privacy
FOSS
Free
No ads
No tracking

Android only

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Passchain is a credential provider that allows you to use your USB/NFC security key or your phone secure element for passkeys/fido2/u2f authentication. Bluetooth keys aren't supported yet. This app doesn't need the Play Services. Once installed, go to your system settings > Passwords, passkeys and accounts, then enable Passchain.

Developer: S1m
Source code: codeberg.org/s1m/hw-fido2-provider
Added to AppCosmos: 10 October 2026
License: Apache-2.0