FOX Commerce API (UCP over MCP)
The FOX storefront's Universal Commerce Protocol service, transported over the Model Context Protocol at https://ridefox.com/api/ucp/mcp. Anonymous JSON-RPC; every tool call carries a UCP agent profile URI. Thirteen tools: search_catalog, lookup_catalog, get_product, get_cart, create_cart, update_cart, cancel_cart, get_checkout, create_checkout, update_checkout, complete_checkout, cancel_checkout and get_order. Checkout completion requires explicit, contemporaneous buyer approval and is the only operation that accepts an idempotency key. The server runtime is Shopify's UCP implementation; the catalog, pricing, inventory and orders are Fox Factory's.