UCPHub Readiness Checker
LiveFree API-first UCP readiness checker that grades storefronts A-F and validates UCP documents against current schemas.
UCPHub Readiness Checker is a free API-first validation service for UCP storefronts. It probes /.well-known/ucp, robots.txt, llms.txt, and agents.md, returns an A-F readiness grade, and exposes a separate /validate endpoint for checking UCP documents against current schemas while building integrations.
Why This Matters for UCP
UCPHub Readiness Checker gives merchants and developers a lightweight API gate for validating whether a storefront is discoverable and aligned with the current UCP schema before agents rely on it.
UCP Capabilities
UCP Endpoint
Live — Endpoint not yet publicly available
Integration Example
const result = await fetch('https://checker.ucphub.ai/check', {
method: 'POST',
headers: { 'content-type': 'application/json' },
body: JSON.stringify({ url: 'https://your-store.example' }),
}).then((response) => response.json());
console.log(result.grade, result.score, result.checks);Category
ValidatorsUCP Status
LiveTags
Pricing
free
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Reviews
★★★★★4.7 (3 reviews)These are illustrative examples to show what reviews will look like. Submit your own experience below.
G. Patel
Platform Engineer · Mar 6, 2026
Accurate validator. The error output is clear enough to act on without reading the spec every time. Does what it says.
L. Hansen
Developer · Jan 20, 2026
Ran this against 12 different UCP endpoints as a benchmarking exercise. Results were consistent and matched manual inspection.
W. Anderson
QA Engineer · Feb 16, 2026
This is what we run in CI on every deploy. Catches schema drift early. False positive rate is basically zero in our experience.
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