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

Proof Launches x401, an Open Protocol for Verified Identity in the Agentic Economy

TLDR Proof launched x401, an open protocol that verifies the human authority behind AI agent actions online. x401 pairs with x402 to cover the two core questions in agentic transactions: identity and payment. Proof Digital ID uses zero-knowledge proofs,...

Tech Firms Begin to Tackle the AI Fraud Question

The growing prominence of agentic commerce has raised questions about the potential for fraud in these transactions, and in particular the problem of verifying who is behind the agents. Now, technology is emerging to address that question. In one example, Boston-based Notarize Inc., which does business as Proof, introduced on Thursday technology called x401. The protocol, which Proof says is open and issuer-neutral, allows Web sites and APIs to …

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

Open the article to view the coverage from MarTech Series