</> Web Validators

auth.md Checker

Look for an auth.md document describing how an agent registers and authenticates.

Checks /.well-known/auth.md and /auth.md for a human- and agent-readable description of how to obtain access. auth.md is an informal documentation convention used by some agent-facing projects, not a formal standard, so most sites do not publish one.

This is one of the checks the AI Agent Readiness Checker scores under API, Auth, MCP & Skill Discovery, and it can also be run on its own for any URL.

Experimental · Based on: RFC 8615 — Well-Known Uniform Resource Identifiers (URIs)

About this validation

Experimental / emerging convention

Probes for an auth.md document describing how an agent registers and authenticates. auth.md is an informal documentation convention used by some agent-facing projects, not a formal standard or a registered well-known URI.

Rules reviewed:
Nov 11, 2026

Standards and vendor-documented behavior can change. This reflects the source as last reviewed above, not a permanent guarantee.