generated: '2026-08-27'
method: probed
source: https://carmd.com/api/ucp/mcp
provider: CarMD
providerId: carmd
name: CarMD Universal Commerce (UCP) MCP Server
description: >-
  CarMD serves a live, anonymous Model Context Protocol endpoint on its own domain at
  https://carmd.com/api/ucp/mcp. It is the Shopify-provided Universal Commerce Protocol (UCP) commerce
  server for the CarMD store — it sells CarMD Connect hardware, not the CarMD Vehicle API. It was probed
  directly: `initialize` returned serverInfo {"name":"universal-commerce","version":"0.1.0"} with
  protocolVersion 2024-11-05, and `tools/list` returned 13 tools with full JSON Schema 2020-12 inputSchemas,
  saved verbatim to mcp/carmd-ucp-tools-list.json. No CarMD Vehicle API MCP server exists; the developer API
  host api.carmd.com refused connections at probe time.
status: live
ownership: >-
  The endpoint is on carmd.com, the company's own primary domain, and an anonymous Storefront GraphQL query
  against the same host returns shop.name "CarMD" with primaryDomain https://carmd.com. The UCP profile's
  Google Pay handler carries merchant_name "CarMD" and merchant_origin carmd.com. The server software is
  Shopify's platform UCP implementation; the merchant, catalog and endpoint are CarMD's.
deployment:
  mode: remote
  endpoint: https://carmd.com/api/ucp/mcp
  auth: none
  verified: probed
  note: >-
    Anonymous. tools/list returned 200 with no credential. Tools require a `meta.ucp-agent.profile` URI in
    every call; a call without one returns JSON-RPC error -32001 "UCP discovery failed"
    (data.code invalid_profile_url) with HTTP 422. The UCP discovery document names an equivalent canonical
    endpoint at https://wayps3-ui.myshopify.com/api/ucp/mcp (the same store's myshopify alias).
protocol:
  jsonrpc: '2.0'
  mcp_protocol_version: '2024-11-05'
  transport: streamable-http
  server_info:
    name: universal-commerce
    version: 0.1.0
  capabilities:
    tools:
      listChanged: true
    prompts:
      listChanged: true
    resources:
      listChanged: true
    logging: {}
discovery:
  llms_txt: https://carmd.com/llms.txt
  agents_md: https://carmd.com/agents.md
  ucp_profile: https://carmd.com/.well-known/ucp
  ucp_versions:
    - '2026-04-08'
    - '2026-01-23'
tool_count: 13
tools:
  - name: get_checkout
    category: checkout
    description: Returns details about the checkout, including line items, totals, and any applicable discounts or taxes.
  - name: create_checkout
    category: checkout
    description: Creates a checkout. Returns checkout details, including line items, totals, and any applicable discounts or taxes.
  - name: update_checkout
    category: checkout
    description: Updates a checkout. Returns checkout details, including line items, totals, and any applicable discounts or taxes.
  - name: complete_checkout
    category: checkout
    description: Completes a checkout and returns the checkout result. Buyer approval is required before payment.
  - name: cancel_checkout
    category: checkout
    description: Cancels a checkout.
  - name: get_cart
    category: cart
    description: Get the cart contents.
  - name: create_cart
    category: cart
    description: Creates a new cart.
  - name: update_cart
    category: cart
    description: Perform updates to a cart.
  - name: cancel_cart
    category: cart
    description: Cancels a cart.
  - name: get_order
    category: order
    description: Get the details of an order.
  - name: search_catalog
    category: catalog
    description: Search for products from the online store, hosted on Shopify.
  - name: lookup_catalog
    category: catalog
    description: Look up multiple products or variants by identifier.
  - name: get_product
    category: catalog
    description: Retrieve complete product detail by identifier. Returns a singular product.
raw_tools_list: mcp/carmd-ucp-tools-list.json
constraints:
  - Checkout requires contemporaneous human approval; agents must not complete payment without explicit buyer consent (stated in llms.txt).
  - The MCP endpoint is rate-limited per IP; back off on 429 (stated in llms.txt).
  - Prices are integers in ISO 4217 minor units paired with a currency code.
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com