Foundation, a bitcoin hardware wallet maker, raised $6.4 million in a funding round led by Fulgur Ventures.

According to a recent report by The Block, Foundation is expanding beyond bitcoin self-custody wallets into identity authentication, two-factor authentication (2FA) and approvals for AI agents.

Oleg Mikhalsky (올레그 미칼스키), a partner at Fulgur Ventures, said Foundation is extending its principles of self-custody, open-source software, dedicated hardware and explicit user approval beyond bitcoin to identity authentication, 2FA and AI agent approval.

Foundation has also begun selling its flagship device, Passport Prime. Passport Prime provides a bitcoin hardware wallet, a FIDO security key, a 2FA vault, a secret vault and 50GB of encrypted storage. It is made in the United States and is designed to always require human approval for sensitive tasks.

Jack Herbert (잭 허버트), Foundation's co-founder and CEO, said the core challenge in the bitcoin era was self-custody. He said the core challenge in the era of AI agents is who actually approves the decisions agents make on a user's behalf. He said the answer must come not from the same computer that runs the agent, but from dedicated hardware with a trusted screen and a verifiable operating system.

Foundation also expanded its developer platform KeyOS. Through an SDK, it enabled developers to build security apps on Passport Prime. It plans to launch a KeyOS app store by the end of the second quarter.