lemon-perfect-ucp
Lemon Perfect publishes a live, hosted MCP endpoint on its own apex domain as the transport for the Universal Commerce Protocol (UCP) shopping service. The endpoint is advertised in three places the company serves itself — robots.txt, /agents.md, /llms.txt — and formally described by the UCP merchant profile at /.well-known/ucp. This is an agentic-commerce surface (search, cart, checkout, order), not a developer platform API.
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Endpoint
Hosted endpoint · transport http
Connect
This is a remote MCP server — point an MCP client at the endpoint URL. Clients with native remote support (Claude, Cursor, VS Code, …):
For stdio-only clients (older Claude Desktop, etc.), bridge with mcp-remote:
If the server requires authentication, add the provider's token/header (e.g. an X-API-Key) per its docs. A quick reachability check:
Tools
search_catalog— Search the store catalog for products matching a buyer's intent.lookup_catalog— Look up specific catalog entries by identifier.get_product— Retrieve a single product record.create_cart— Create a cart and add the desired items.get_cart— Retrieve an existing cart by id.update_cart— Update the contents of an existing cart.cancel_cart— Cancel/abandon a cart.create_checkout— Start the purchase flow from a cart.get_checkout— Retrieve a checkout by id.update_checkout— Set shipping address and delivery method on a checkout.complete_checkout— Finalize the purchase. The buyer must explicitly approve payment — the store forbids agent-completed checkout without contemporaneous human approval.cancel_checkout— Cancel an in-flight checkout.get_order— Retrieve an order by id.
About MCP
The Model Context Protocol (MCP) is an open protocol Anthropic introduced for connecting LLM-based agents to external tools and data sources. Providers publish MCP servers that expose their API surface as structured, discoverable tools — an MCP-compatible client (Claude Desktop, Cursor, Cline, Continue, etc.) can connect to the server and call its tools without any per-provider integration code.
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