Vault Key Card

The Vault Key Card is Zypto's hardware key: a card-form-factor device that holds your private keys offline and signs transactions when you tap it to your phone. Posts here cover setup, pairing, how it differs from traditional USB hardware wallets, what gets signed where, the recovery flow, and the practical workflows: holding long-term, signing for swaps, moving between hot and cold custody without losing track. Written by the team that builds the card alongside the Zypto wallet app.

Most posts on vault key card live in our Zypto App category, so if you want to keep reading, that's the natural next click. The Zypto blog publishes new pieces every week, and the full archive is searchable from the icon at the top.

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