# Proof’s x401 establishes an open protocol for AI agent identity and authorization

> Source: <https://www.helpnetsecurity.com/2026/06/26/proofs-x401-establishes-an-open-protocol-for-ai-agent-identity-and-authorization/>
> Published: 2026-06-26 12:08:46+00:00

Proof has launched x401, an open, issuer-neutral protocol that lets any website or API ask for and verify the identity behind agents. With x401, a service can ask for the proof it requires: verified identity, age, membership, organizational affiliation, signing authority, proof of humanness, orf another trusted claim. The agent presents a compatible credential and authorization. The service verifies the issuer, claim, scope and action before proceeding. Identity establishes who or what an agent represents. … [More ](https://www.helpnetsecurity.com/2026/06/26/proofs-x401-establishes-an-open-protocol-for-ai-agent-identity-and-authorization/)

The post [Proof’s x401 establishes an open protocol for AI agent identity and authorization](https://www.helpnetsecurity.com/2026/06/26/proofs-x401-establishes-an-open-protocol-for-ai-agent-identity-and-authorization/) appeared first on [Help Net Security](https://www.helpnetsecurity.com).