Comment by codenstuff
19 days ago
Quite interested in this space - good idea and I think agent commerce will grow.
If I understand correctly, at least for Shopify I can already find products using: https://shopify.dev/docs/agents/catalog/mcp
and if I want to checkout I can use https://shopify.dev/docs/agents/checkout/mcp.
Although I think at least currently I need to request approval from Shopify to even use the checkout API - I believe they are rolling it out slowly (?)
Is it correct to say that your tool looks allows me to skip Shopify APIs and create my own AI agent to speak UCP directly to merchants?
Great question! Let me clarify the difference between Shopify's MCP endpoints and UCP: Shopify MCP vs UCP are solving different problems:
Shopify MCP (what you linked): - Shopify's proprietary API for AI agents to talk to Shopify stores - Requires Shopify authentication/approval - Only works with Shopify stores - Agent → Shopify API → Store
UCP (Universal Commerce Protocol): - Open standard by Google + Shopify + 25+ partners - Works across ALL ecommerce platforms (WooCommerce, BigCommerce, Magento, custom stores, etc.) - No approval needed - it's an open protocol - Agent → UCP endpoint → Any store
Think of it this way: MCP is like building an app that only works with iOS. UCP is like building for the open web.
What our checker does: It validates if ANY store (not just Shopify) has UCP implemented correctly. So an AI agent can discover and interact with that store without needing platform-specific integrations. For example:
A WooCommerce store with UCP - can be discovered by AI agents A custom-built store with UCP - can be discovered by AI agents A Shopify store without UCP - is only accessible through Shopify's MCP (if approved)
The bet is that AI agents won't want to integrate with 50 different platform APIs. They'll want one standard (UCP) that works everywhere - just like they use robots.txt instead of platform-specific crawling rules.
Does that help clarify?