Cerebelly UCP Commerce MCP
A live, anonymously reachable Model Context Protocol endpoint on Cerebelly's own storefront host. An unauthenticated POST of {"jsonrpc":"2.0","id":1,"method":"tools/list"} returns HTTP 200 with 13 tools, each carrying a complete JSON Schema draft 2020-12 inputSchema. This is Shopify's Universal Commerce Protocol implementation as deployed on cerebelly.com — Cerebelly does not author it, but it is served from Cerebelly's host under Cerebelly's domain and it transacts against Cerebelly's catalog.
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Endpoint
Hosted endpoint · transport streamable-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 for products from the online store, hosted on Shopify.lookup_catalog— Look up multiple products or variants by identifier. Accepts 1–10 ids.get_product— Retrieve complete product detail by identifier, optionally for selected variant options.get_cart— Get the cart contents.create_cart— Creates a new cart from line items keyed on product-variant id.update_cart— Perform updates to a cart.cancel_cart— Cancels a cart.get_checkout— Returns checkout detail including line items, totals, discounts and taxes.create_checkout— Creates a checkout and returns its line items, totals, discounts and taxes.update_checkout— Updates a checkout — shipping address, delivery method, discounts, payment instruments.complete_checkout— Completes a checkout and returns the result. The ONLY tool that requires meta.idempotency-key, and the only one gated on explicit buyer approval.cancel_checkout— Cancels a checkout.get_order— Get the details of an order by gid://shopify/Order/{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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