Keycard Shell

@Keycard_

The most secure, modular hardware wallet for your crypto. One shell, many keycards. Join our community:

Keycard Shell @Keycard_ · 2026-05-11

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.

Keycard Shell @Keycard_ · 2026-04-29

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.

Keycard Shell @Keycard_ · 2026-04-29

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!