Show HN: Approve an AI agent's wire with Face ID,then watch a forged one fail

EMILIA, a new protocol for human-in-the-loop AI agent approvals, launched a demonstration allowing users to approve an $82,000 wire transfer using Face ID via WebAuthn, then watch the verification process fail when a forged approval is attempted. The demo runs entirely in the browser with no data uploaded, using an open-source verification package to confirm each approval ceremony. The project aims to solve the problem of AI agents executing high-value transactions without human oversight.

Be the human in the loop An AI agent is about to wire $82,000. In most systems it just happens. In EMILIA it can’t — not until a named human approves it on their own device. Be that human. You’ll approve with your device, then watch the approval verify — every check — right here in your browser, with nothing uploaded. 1Enroll as the approver This is not a video. The approval is a real WebAuthn https://www.w3.org/TR/webauthn-2/ ceremony on your device, and the verification is the open-source @emilia-protocol/verify package running in this tab. Open your network tab — nothing is uploaded. The simulated option uses an ephemeral key generated in your browser and discarded on reload; it exists only so the demo works where a platform authenticator isn’t available.