Proof Launches x401, the Open Protocol for Verifying the Authority Behind AI Agents

AI agents are transacting on behalf of real people, on real payment rails, right now. The fraud ecosystem built around that fact is already operational, and this month's headlines show exactly how the attack surface is forming.

Ray Hayes

July 13, 2026

Digital identity is a persistent, cryptographically secured credential that represents a verified person. Once established, it does not expire with a session or reset between transactions. It travels with the user across interactions, and it gets stronger and more useful with every use.

Anna Scionti

July 10, 2026

What companies bringing interviews back in person have concluded is that they cannot verify who is sitting on the other end of a video call with enough confidence to make the hire. However, the remote-first format alone wasn’t the issue. What was missing underneath it was an identity layer reliable enough to make remote interviews trustworthy.

Lauren Furey

July 8, 2026

Every auto refinance starts the same way: the borrower agrees to the new terms, the deal is approved, and then someone has to get a power of attorney signed so the lender can handle the title transfer without the borrower standing at the DMV counter in person. The lenders who are fixing this are funding faster, cutting operational costs, and closing a fraud vulnerability that paper processes leave wide open.

Emmy Leitzell

July 6, 2026

If one bad actor is successfully hired, they can act as a reference for others, using their insider knowledge of the employer's hiring process to coach additional fraudulent candidates through. That changes the threat model significantly. A single fraudulent hire inside a large remote workforce represents a vulnerability that has already been exploited to map the organization's defenses, and that map is being shared.

Trisha Sood

July 1, 2026

The internet needs an identity layer that cryptographically proves who you are, what you've done, and which agents are operating in your name. To solve these challenges, we're releasing x401, an open, issuer-neutral protocol for the identity and authorization challenges created by agents, along with Proof digital ID, the first live implementation on x401, to bring a verified human identity and authorization to every agent action.

Pat Kinsel

June 29, 2026