Free checker

UCP checker

Reads your commerce profile the way an agent would and reports what breaks, checked against the specification's own requirements rather than whether a file happens to exist.

No account needed. 10 checks per day.

What this checks

Discovery
Whether your profile is reachable at the well known location, and reachable without a redirect. Agents are told not to follow redirects here, so a profile behind one is invisible even though it looks fine in a browser.
Transport
Content type, HTTPS, and the caching header the specification requires. Missing caching is the single most common finding, including on profiles served by large platforms.
Document
Required fields, version format, and whether declared capabilities point at schemas on a domain you control rather than someone else's.
Safety
Whether the profile contains anything that should never be public, such as private key material pasted into a config by mistake.

New to this? Start with what UCP is, or read why agent readiness matters.