Hey HN! I built this free UCP Store Checker after Google and Shopify launched Universal Commerce Protocol in January 2026.
The problem: AI shopping agents (ChatGPT, Gemini, Perplexity) are starting to browse and buy from online stores. But 99% of stores are invisible to them. It's like the early 2000s web before robots.txt existed.
What is UCP? Think robots.txt for AI commerce. It's Google & Shopify's open standard that makes your store machine-readable so AI agents can discover products, check availability, and complete purchases.
What I built:
The tool instantly checks if your store:
- Exposes machine-readable product data
- Has protocol-compliant endpoints
- Can be discovered by AI shopping agents
- Is ready for agentic commerce
No signup. Just paste your URL and hit enter.
Try it: https://ucphub.ai/ucp-store-check/
I tested 500+ stores before launch. Only 0.1% are UCP-ready. Most merchants don't even know this standard exists yet, but AI commerce traffic is already starting to flow.
The check runs in ~2 seconds and shows you exactly what's missing. Built this because I kept seeing merchants confused about why their products weren't showing up in AI agent results.
Technical details: Next.js frontend, validates UCP endpoints, checks for structured data schemas, analyzes protocol compliance. Open to feedback on what else to check for.
Curious what HN thinks. Is this the beginning of a major shift in e-commerce, or will AI agents never really take off for shopping?
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