Foundation has completed a $6.4 million funding round led by Fulgur Ventures. The company has simultaneously launched Passport Prime, aiming to move critical operations such as transaction confirmation, identity verification, and AI agent authorization to a dedicated hardware device.
The company was previously known for its Bitcoin self-custody products. Following this funding round, its offerings will expand from hardware wallets to identity management, multi-factor authentication, and an authorization system for AI agents. Passport Prime began shipping to pre-order customers in March 2026 and is now available for public purchase.
Device targets AI agent authorization
Foundation positions Passport Prime as "human-authorized hardware." Its core idea is that, in a context where AI agents can access financial accounts, cloud services, and enterprise tools, critical digital actions still require personal confirmation by the user via a dedicated device.
The company believes that browser pop-ups or mobile notifications are no longer reliable verification points, as the same software environment may soon run automated agents and approval processes simultaneously, potentially exposing the authorization step itself to risks.
Integrated wallet and authentication features
Passport Prime integrates multiple functions into a single device, including a Bitcoin hardware wallet, FIDO authentication key, two-factor authentication storage, key vault, and 50GB of encrypted storage, serving as a unified approval layer.
- Supports Bitcoin transaction signing
- Support for credential invocation and data access control
- Starting price is $349.
The device runs on Foundation's proprietary KeyOS, a system built on a Rust-based microkernel architecture with a development cycle of approximately three years. The company states that KeyOS is open source and integrates the QuantumLink communication system, employing ML-KEM and ChaCha20-Poly1305 encryption schemes.
KeyOS is open to external developers.
The Foundation has opened the KeyOS development platform, providing a software development kit, documentation, command-line tools, and an emulator. Developers can test applications without physical devices and may apply for development machines for real-device testing.
The company plans to launch the KeyOS App Store by the end of the second quarter as a distribution channel for security-focused applications. Officially listed app categories include Bitcoin trading strategies, authentication tools, enterprise signing systems, and AI agent approval workflows.
Cake Wallet is the first external partner to integrate with KeyOS, providing cold storage solutions to its over one million users. The Foundation anticipates further integrations in financial services, identity systems, and AI workflows by 2026.