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Posted by vladeta 2 hours ago

Show HN: I built a free UCP checker – see if AI agents can find your store(ucphub.ai)
2 points | 1 comments
vladeta 2 hours ago
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?