The keys

Heirloom uses standard FIDO2 hardware keys. You buy your own.

YubiKey 5C NFC

$55

Works with phone and laptop. The safe default.

$50

Same key, USB-A. For older laptops.

$60

Open-source firmware. For the technically curious.

$28

Cheaper, PIN-protected, made in the EU.

$70

Open hardware and open firmware. Audited.

Any FIDO2-compliant key with USB-C, USB-A, or NFC will work. These are the ones we trust.