Foundation raised $6.4 million in a Fulgur Ventures-led funding round to launch Passport Prime, a hardware device designed to enforce human authorization control over AI agents and digital transactions. The Boston-based company, which has now raised $16.5 million total, is shipping the device starting May 2026 at $349, positioning hardware-based security as the answer to AI agent execution risks across financial accounts and enterprise systems.
From Bitcoin Custody to AI Authorization
Foundation started in self-custody hardware for Bitcoin but has expanded into identity management, multi-factor authentication, and AI agent authorization. Passport Prime consolidates five functions: Bitcoin hardware wallet, FIDO authentication keys, 2FA storage, secrets vault, and encrypted storage with 50GB capacity. The shift reflects a market reality: as AI agents gain the ability to execute tasks autonomously across financial platforms, cloud systems, and enterprise tools, human authorization must move off software-based systems vulnerable to compromise. CEO Zach Herbert stated: “authorization must move to independent hardware with a verifiable display and operating system, rather than remain within software environments that can be compromised.” The device runs KeyOS, a Rust-based microkernel operating system that took three years to develop and uses post-quantum cryptographic standards including ML-KEM and ChaCha20-Poly1305 encryption.
KeyOS Platform and Developer Ecosystem
Foundation is opening KeyOS as a developer platform with SDK, documentation, CLI tools, and simulator. Cake Wallet, which serves over 1 million users, became the first external KeyOS partner. The company plans to launch a KeyOS app store by the end of Q2 2026. CTO Ken Carpenter emphasized that the shift “moves hardware from a static key storage tool into a programmable security layer.” This developer-first approach signals Foundation’s strategy to move beyond a single product into infrastructure. Passport Prime began shipping to pre-order customers in March 2026 and enters general availability in May 2026.
AI Security and Regulatory Timing
The funding and product launch arrive as regulators and enterprises confront AI agent risks. Unlike software-only authorization systems, hardware-based approval creates an external, tamper-resistant checkpoint for sensitive transactions. This addresses a specific vulnerability: malware or compromised software can execute unauthorized actions on behalf of users. Passport Prime’s dedicated Bluetooth chip and isolated operating system create separation that software architectures cannot. The device targets financial services, identity systems, and AI workflows—sectors where unauthorized execution poses direct liability and customer harm.
What Comes Next
Foundation expects further integrations across financial services and enterprise tools throughout 2026, though specific partners and timelines remain unannounced. The $6.4 million round closes a Series A for hardware shipping and live users, moving Foundation from development into market validation. Adoption metrics and pre-order customer numbers have not been disclosed. The KeyOS app store launch in Q2 2026 will indicate whether third-party developers adopt the platform at scale.
