UCP Protocol: The Internet Has 100M Shops and No Front Door

Looks interesting. I was somewhat skeptical, but it appears to be a legitimate open protocol. You can use it to build a search engine for products across many smaller stores, and facilitate ordering from within your app, which appears to be what Google Shopping and the above website are both doing. Sort of a decentralized Amazon MFN.

It's also designed to be used by AI agents. This should enable any AI agent to discover products and purchase items from any UCP-enabled store, in a safe way.

Here's the spec: https://ucp.dev/latest/specification/overview/

Every Shopify store appears to already support it. Example: https://shop.spacex.com/.well-known/ucp