Keycard Shell
@Keycard_
The most secure, modular hardware wallet for your crypto. One shell, many keycards.
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Here's what air-gapped self-custody actually looks like.
QR signing. Replaceable battery. Fully open source.
Works with the wallets you already use.
Your hardware wallet locks you in. Ours sets you free.
Keycard is the only open-source wallet with airgap, clear signing, and 10+ wallet support - all in one.
Your hardware wallet locks you in. Ours set you free.
Keycard is the only open-source wallet with airgap, clear signing, , and 10+ wallet support - all in one.
Your wallet says it's secure. Can you prove it?
Keycard Shell is the first fully modular and open-source hardware wallet: every line of code is public.
No black boxes. No trust required.
EAL6+ security. Works with MetaMask, Sparrow & more.
Get your starter kit today.
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Tired of juggling multiple hardware wallets?
Get the modular Keycard Shell + 2 Keycards with 10% off today - limited time only!
BTC + ETH ready. Air-gapped. Open-source. Self-custody done right.
Meet Keycard Shell: the first modular, fully open-source hardware wallet.
Non-upgradable EAL6+ security.
Works with MetaMask, Ambire, Rabby, Sparrow & more.
Your keys. Your rules.
Get your starter kit ( shell + 2 Keycards) with 10% off today!
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