Foundation Devices, known for its Passport Bitcoin hardware wallet, has raised $6.4 million to venture into AI agent authorization infrastructure. This move aims to address the growing need for secure authorization as AI agents evolve from simple demos to tools capable of financial transactions and service bookings. The company plans to leverage its expertise in secure key management to create a policy layer that defines and enforces rules for AI agents, ensuring user-controlled permissions. Founded in 2020 by Zach Herbert, Foundation Devices has built its reputation on secure Bitcoin key management. The new funding will help the company expand from hardware wallets to developing infrastructure that protects decisions made by AI agents. This initiative comes as AI agents increasingly integrate into crypto wallets, executing trades and managing portfolios, highlighting the need for robust authorization systems to prevent unauthorized transactions.