generated: '2026-08-23' method: probed status: published source: https://prolonlife.com/llms.txt description: >- L-Nutra operates no developer platform, but all three of its storefronts expose live, anonymous, remote MCP endpoints. Each storefront serves a Universal Commerce Protocol (UCP) 2026-04-08 discovery profile at /.well-known/ucp naming an MCP transport endpoint at /api/ucp/mcp, and a second Shopify Storefront MCP endpoint at /api/mcp. Every endpoint below was POSTed a real tools/list JSON-RPC request on 2026-08-23 and returned HTTP 200 with a populated tool set and full JSON Schema 2020-12 input schemas — no authentication, no OAuth challenge. The tool lists are saved verbatim alongside this manifest. ownership: >- These endpoints are Shopify platform infrastructure served under L-Nutra's own domains and scoped to L-Nutra's own shops. Each /.well-known/ucp names the merchant shop that backs it — prolon-fmd-2020.myshopify.com, l-nutra-health-2022.myshopify.com and prolon-pro.myshopify.com — and the llms.txt served at each host names the store by its L-Nutra brand, so the catalog, cart, checkout and order data behind every tool is L-Nutra's. The protocol implementation is Shopify's; the commercial surface it exposes is L-Nutra's, the same relationship as a WordPress /wp-json surface on a publisher's own domain. deployment: mode: remote endpoint: https://prolonlife.com/api/ucp/mcp auth: none verified: probed checked: '2026-08-23' note: >- Anonymous over HTTPS. No install step, no package, no stdio variant published. Payment completion is gated on contemporaneous human approval by store policy, not by a credential. servers: - name: prolon-life-ucp host: prolonlife.com endpoint: https://prolonlife.com/api/ucp/mcp protocol: MCP over HTTP (UCP transport) ucp_version: '2026-04-08' ucp_supported_versions: ['2026-04-08', '2026-01-23'] backing_shop: prolon-fmd-2020.myshopify.com auth: none http_status: 200 tool_count: 13 tools_file: l-nutra-prolonlife-ucp-tools-list.json response_header: 'x-shopify-ucp-mcp-api-version: 2026-04-08' - name: prolon-life-storefront host: prolonlife.com endpoint: https://prolonlife.com/api/mcp protocol: MCP over HTTP (Shopify Storefront MCP) auth: none http_status: 200 tool_count: 5 tools_file: l-nutra-prolonlife-storefront-tools-list.json - name: l-nutra-health-ucp host: l-nutrahealth.com endpoint: https://l-nutrahealth.com/api/ucp/mcp protocol: MCP over HTTP (UCP transport) ucp_version: '2026-04-08' ucp_supported_versions: ['2026-04-08', '2026-01-23'] backing_shop: l-nutra-health-2022.myshopify.com auth: none http_status: 200 tool_count: 13 tools_file: l-nutra-l-nutrahealth-ucp-tools-list.json - name: l-nutra-health-storefront host: l-nutrahealth.com endpoint: https://l-nutrahealth.com/api/mcp protocol: MCP over HTTP (Shopify Storefront MCP) auth: none http_status: 200 tool_count: 1 tools_file: l-nutra-l-nutrahealth-storefront-tools-list.json note: Configured narrowly — only search_shop_policies_and_faqs is exposed. - name: prolon-professional-ucp host: l-nutraprofessional.com endpoint: https://l-nutraprofessional.com/api/ucp/mcp protocol: MCP over HTTP (UCP transport) ucp_version: '2026-04-08' ucp_supported_versions: ['2026-04-08', '2026-01-23'] backing_shop: prolon-pro.myshopify.com auth: none http_status: 200 tool_count: 13 tools_file: l-nutra-l-nutraprofessional-ucp-tools-list.json - name: prolon-professional-storefront host: l-nutraprofessional.com endpoint: https://l-nutraprofessional.com/api/mcp protocol: MCP over HTTP (Shopify Storefront MCP) auth: none http_status: 200 tool_count: 1 tools_file: l-nutra-l-nutraprofessional-storefront-tools-list.json note: Configured narrowly — only search_shop_policies_and_faqs is exposed. tools: - name: search_catalog category: catalog description: Search for products from the online store using natural language queries or specific filters. - name: lookup_catalog category: catalog description: Look up multiple products or variants by identifier in a single request. - name: get_product category: catalog description: Retrieve complete product detail by identifier, with variants, exact pricing and real-time availability. - name: create_cart category: cart description: Creates a new cart. - name: get_cart category: cart description: Get the cart contents. - name: update_cart category: cart description: Perform updates to a cart. - name: cancel_cart category: cart description: Cancels a cart. - name: create_checkout category: checkout description: Creates a checkout and returns line items, totals, discounts and taxes. - name: get_checkout category: checkout description: Returns details about the checkout, including line items, totals, discounts and taxes. - name: update_checkout category: checkout description: Updates a checkout — shipping address, shipping method, buyer details. - name: complete_checkout category: checkout description: >- Completes a checkout and returns the order ID and Thank You Page URL. Requires a caller-supplied meta.idempotency-key (declared required in the tool's own input schema). - name: cancel_checkout category: checkout description: Cancels a checkout. - name: get_order category: order description: Get the details of an order. storefront_mcp_tools: - name: search_catalog hosts: [prolonlife.com] - name: get_cart hosts: [prolonlife.com] - name: update_cart hosts: [prolonlife.com] - name: get_product_details hosts: [prolonlife.com] - name: search_shop_policies_and_faqs hosts: [prolonlife.com, l-nutrahealth.com, l-nutraprofessional.com] constraints: - >- Human approval is mandatory before payment. prolonlife.com/robots.txt and /llms.txt both state that agents must not complete checkout, payment or order placement automatically without an explicit, contemporaneous human approval step. - The MCP endpoint is rate-limited per IP; the published guidance is to back off on HTTP 429. - Pass context.address_country and context.currency for accurate pricing and availability.