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[ARTICLE · art-40765] src=helpnetsecurity.com ↗ pub= topic=ai-agents verified=true sentiment=↑ positive

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

Proof launched x401, an open protocol enabling websites and APIs to request and verify AI agent identity, authorization, and claims like age or membership. The protocol allows services to verify issuers, claims, and actions before granting access, establishing trust in agent interactions.

read1 min views1 publishedJun 26, 2026

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

The post Proof’s x401 establishes an open protocol for AI agent identity and authorization appeared first on Help Net Security.

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