generated: '2026-08-25'
method: probed
source: 'Live unauthenticated MCP JSON-RPC probes on 2026-08-25 against https://www.maisonette.com/api/ucp/mcp
  and https://www.maisonette.com/api/mcp, both announced by the store''s own https://www.maisonette.com/llms.txt
  and https://www.maisonette.com/.well-known/ucp.'
ownership_note: 'Both endpoints are served from www.maisonette.com, Maisonette''s own
  storefront host, and the /.well-known/ucp merchant profile names Maisonette (merchant_name
  "Maisonette", merchant_origin "www.maisonette.com", Shopify shop id 58323238975).
  The MCP servers are Shopify platform capabilities exposed on the merchant''s domain
  — the software is Shopify''s, the merchant surface and catalog reached through it
  are Maisonette''s.'
deployment:
  mode: remote
  endpoint: https://www.maisonette.com/api/ucp/mcp
  auth: none
  verified: probed
  note: 'tools/list answers 200 with no credentials. Individual tool CALLS require a
    meta.ucp-agent.profile URI (an agent profile the caller publishes); a call without
    it returns JSON-RPC error -32001 invalid_profile_url. complete_checkout additionally
    requires contemporaneous buyer payment approval per the store''s published agent
    instructions. No install/package fields: there is no stdio distribution.'
servers:
- name: Maisonette UCP Commerce MCP
  endpoint: https://www.maisonette.com/api/ucp/mcp
  transport: streamable-http
  protocol_version_advertised: '2026-04-08'
  mcp_protocol_version_negotiated: '2024-11-05'
  server_info:
    name: universal-commerce
    version: 0.1.0
  status: live
  http_status: 200
  auth: none for discovery; buyer approval required to complete payment
  tools_file: mcp/maisonette-ucp-mcp-tools.json
  tool_count: 13
  tools:
  - name: search_catalog
    category: catalog
  - name: lookup_catalog
    category: catalog
  - name: get_product
    category: catalog
  - name: create_cart
    category: cart
  - name: get_cart
    category: cart
  - name: update_cart
    category: cart
  - name: cancel_cart
    category: cart
  - name: create_checkout
    category: checkout
  - name: get_checkout
    category: checkout
  - name: update_checkout
    category: checkout
  - name: complete_checkout
    category: checkout
  - name: cancel_checkout
    category: checkout
  - name: get_order
    category: order
  capabilities_advertised:
    tools: true
    prompts: true
    resources: true
    logging: true
  mirror_endpoint: https://ad4903-c2.myshopify.com/api/ucp/mcp
  mirror_note: The /.well-known/ucp service entry points at the myshopify.com canonical
    host; both hosts answer tools/list 200 with the same tool set.
- name: Maisonette Storefront MCP
  endpoint: https://www.maisonette.com/api/mcp
  transport: streamable-http
  status: live
  http_status: 200
  auth: none
  tools_file: mcp/maisonette-storefront-mcp-tools.json
  tool_count: 5
  tools:
  - name: search_catalog
    category: catalog
  - name: get_product_details
    category: catalog
  - name: get_cart
    category: cart
  - name: update_cart
    category: cart
  - name: search_shop_policies_and_faqs
    category: support
  note: The lighter read-and-cart Shopify Storefront MCP surface. Not named in llms.txt;
    found by probing the conventional Shopify path.
discovery:
- https://www.maisonette.com/llms.txt
- https://www.maisonette.com/agents.md
- https://www.maisonette.com/.well-known/ucp
- https://www.maisonette.com/sitemap_agentic_discovery.xml
rate_limiting:
  documented: The store's llms.txt states the MCP endpoint is rate-limited per IP and
    instructs agents to back off on 429.
  observed_headers:
  - shopify-complexity-score
  - shopify-complexity-score-v2
  - x-shopify-ucp-mcp-api-version