generated: '2026-08-26' method: probed source: https://modifyhealth.com/api/ucp/mcp (JSON-RPC tools/list, HTTP 200, unauthenticated) status: published note: 'Discovered from ModifyHealth''s own published /llms.txt and /agents.md, which name the UCP discovery document and the MCP endpoint. The tool contract and transport are supplied by the Shopify platform (response header x-shopify-ucp-mcp-api-version: 2026-04-08) but the endpoint is served from ModifyHealth''s host for ModifyHealth''s shop (id 7887683702, merchant_origin modifyhealth.com) and operates on ModifyHealth''s catalog, carts and orders. tools/list answers anonymously, so every inputSchema below was read live, not inferred.' deployment: mode: remote endpoint: https://modifyhealth.com/api/ucp/mcp auth: none verified: probed note: Anonymous tools/list returns HTTP 200 with all 13 tools and full inputSchemas. Tool INVOCATION additionally requires meta.ucp-agent.profile (an agent profile URI); calling without it returns JSON-RPC error -32001 invalid_profile_url. Buyer payment on complete_checkout requires contemporaneous human approval per the provider's own agents.md. server: name: modifyhealth-ucp transport: http protocol: MCP over JSON-RPC 2.0 url: https://modifyhealth.com/api/ucp/mcp alternate_url: https://modifyhealth.myshopify.com/api/ucp/mcp ucp_version: '2026-04-08' ucp_supported_versions: - '2026-04-08' - '2026-01-23' discovery: https://modifyhealth.com/.well-known/ucp openrpc_schema: https://ucp.dev/2026-04-08/services/shopping/mcp.openrpc.json tool_count: 13 tools: - name: get_checkout description: Returns details about the checkout, including line items, totals, and any applicable discounts or taxes. required: - meta - id top_level_params: - meta - id - name: create_checkout description: Creates a checkout. Returns checkout details, including line items, totals, and any applicable discounts or taxes. required: - meta - checkout top_level_params: - meta - checkout - name: update_checkout description: Updates a checkout. Returns checkout details, including line items, totals, and any applicable discounts or taxes. required: - meta - checkout - id top_level_params: - meta - checkout - id - name: complete_checkout description: Completes a checkout and returns the checkout result. Returns details about the completed checkout, including order ID, Thank You Page URL, or any errors encountered. required: - meta - id - checkout top_level_params: - meta - checkout - id - name: cancel_checkout description: Cancels a checkout. required: - meta - id top_level_params: - meta - id - name: get_cart description: Get the cart contents required: - meta - id top_level_params: - meta - id - name: create_cart description: Creates a new cart required: - meta - cart top_level_params: - meta - cart - name: update_cart description: Perform updates to a cart. required: - meta - cart - id top_level_params: - meta - cart - id - name: cancel_cart description: Cancels a cart. required: - meta - id top_level_params: - meta - id - name: get_order description: Get the details of an order required: - meta - id top_level_params: - meta - id - name: search_catalog description: Search for products from the online store, hosted on Shopify. required: - meta - catalog top_level_params: - meta - catalog - name: lookup_catalog description: Look up multiple products or variants by identifier. required: - meta - catalog top_level_params: - meta - catalog - name: get_product description: Retrieve complete product detail by identifier. Returns a singular product required: - meta - catalog top_level_params: - meta - catalog x-evidence: fetched: '2026-08-26' url: https://modifyhealth.com/api/ucp/mcp http_status: 200 content_type: application/json; charset=utf-8 response_header: 'x-shopify-ucp-mcp-api-version: 2026-04-08' raw: mcp/modifyhealth-mcp-tools.json