UCP Core Summary: A deep dive into the Universal Commerce Protocol framework designed for Agentic Shopping.
The Front Door for AI
The /.well-known/ucp endpoint is the most critical piece of the Universal Commerce Protocol. It is a simple JSON manifest that tells an AI agent exactly what your store is capable of.
What’s Inside?
The manifest contains your Merchant ID, supported checkout flows (Native vs. Embedded), and the exact API routes for your product catalog and cart systems.
Security and CORS
It is vital that this endpoint has properly configured CORS headers. Without Access-Control-Allow-Origin: *, browser-based agents will fail to read your manifest, causing immediate transaction failure.
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