# UCP Check

Is your brand UCP compliant?

A completely free validator for Universal Commerce Protocol.

No email or signup required, results in seconds.

## What this site is

UCP Check is an independent, free validator for Universal Commerce Protocol. Validate UCP manifest discovery, schema, capabilities, and endpoint conformance. It validates against spec version 2026-04-08.

## What it checks

- Discovery
- Schema
- Capabilities
- Endpoints

## How to use it

Submit the full URL where your UCP surface lives — not a bare domain — at https://www.ucpcheck.org/check?url=<your-url>. We fetch that single endpoint plus any endpoints your manifest declares. There is no signup and no account.

## More pages

- [About UCP](https://www.ucpcheck.org/about.md) — What Universal Commerce Protocol is and why it matters.
- [Methodology](https://www.ucpcheck.org/methodology.md) — How UCP Check validates UCP endpoints.
- [FAQ](https://www.ucpcheck.org/faq.md) — Common questions about UCP and this validator.
- [Resources](https://www.ucpcheck.org/resources.md) — UCP spec links and related tools.
- [For site admins](https://www.ucpcheck.org/bot.md) — Bot identification, credentials handling, and what we retain.
- [Glossary](https://www.ucpcheck.org/glossary.md) — Definitions of UCP and agentic commerce terms.
- [Site map](https://www.ucpcheck.org/sitemap.md) — Every UCP Check page available as Markdown.