
Keystone
Keystone is an air-gapped hardware wallet for self-custody of Bitcoin, Ethereum, Solana, and many other crypto assets.

What is Keystone?
Keystone (formerly Cobo Vault) is a line of air-gapped hardware wallets that sign transactions over QR codes instead of USB or Bluetooth. Users generate seeds inside multiple secure elements, pair the device with software wallets like MetaMask and Phantom, and approve transfers, swaps, and dApp interactions across Bitcoin, Ethereum, Solana, BNB Chain, TRON, and other supported networks.
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App store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.

