Universal Commerce Protocol Playground

Explore Universal Commerce Protocol (UCP) with live Shopify catalog search, Cart MCP, Checkout MCP, product lookup, and raw JSON-RPC inspection.

• UCP API workbook — Discover a business and run editable UCP requests from catalog search through carts, checkout, and order lookup.
• UCP profile validator — Validate a complete UCP business or platform profile, its schemas, references, and published URLs.
• UCP negotiation explorer — See which UCP capabilities an agent and merchant can use together.
• UCP permalink generator — Build and validate a shareable link with selected products and shopping context.
• UCP version comparison — Compare releases with complete release-note, repository-file, and JSON Schema path coverage.
• WebMCP inspector — Check whether a website supports WebMCP, grade the tools it exposes to AI agents, and export them for your own agent.