com.ucpchecker/ucp-checker

Tools

• add-to-cart

  Add a product to cart on any UCP-enabled Shopify store and get a checkout URL. Requires a variant ID from the search-catalog or get-product-details results. Returns the cart contents, checkout URL, and a cart_id token. To build multi-item carts: pass the returned cart_id back on subsequent calls. The agent holds the cart_id — no server-side session needed. Example: domain: "allbirds.com", variantId: "gid://shopify/ProductVariant/12345" Multi-item: domain: "allbirds.com", variantId: "...", cartId: "gid://shopify/Cart/abc123"

  shallow
• build-bundle

  Build a multi-store shopping cart in one call. Pass an array of items (each with domain + variantId) and get back per-store checkout URLs. Items on the same store share one cart. Requires variant IDs — use get-product-details first to resolve sizes/colors. Example: items: [ { "domain": "allbirds.com", "variantId": "gid://shopify/ProductVariant/123" }, { "domain": "gymshark.com", "variantId": "gid://shopify/ProductVariant/456", "quantity": 2 } ]

  shallow
• check-domain

  Check if a domain supports Universal Commerce Protocol (UCP). Returns the UCP status, manifest version, capabilities, response latency, and AI bot access policies (GPTBot, ClaudeBot, Google-Extended, etc.). The domain is automatically normalized (removes protocol, www, paths). Examples: "shopify.com", "https://www.example.com/path" → "example.com"

  shallow
• discover-store

  Discover available shopping tools on a UCP-enabled store. Connects to the store's MCP endpoint and lists all available tools (search, cart, shipping, etc.). Use this to understand what a store supports before shopping. Example: domain: "allbirds.com"

  shallow
• get-product-details

  Get full product details including variant IDs from a UCP-enabled store. Use this after search-catalog to resolve variant IDs needed for add-to-cart. Pass the Product ID from search results to get all variants with their IDs. Example: domain: "allbirds.com", productId: "gid://shopify/Product/123456"

  shallow
• list-categories

  List all available store categories with store counts. Use to discover what kinds of stores are available before narrowing down. Returns categories sorted by number of stores (most stores first).

  shallow
• list-stores

  List verified UCP stores, optionally filtered by category and minimum score. Use when the user wants to shop by category — e.g., "find me a pet store" or "what shoe stores are available?" Returns stores sorted by score (highest first) with domain, category, score, and grade.

  shallow
• search-all

  Search for products across the highest-scoring verified UCP stores at once. Fans out the query to multiple stores concurrently and returns aggregated results grouped by store. Stores are chosen from the same vetted, scored set list-stores returns (best scores first). Pass `category` to focus the fan-out — e.g. "footwear" for "running shoes". Slow/failing stores are skipped gracefully. Example: query: "running shoes", category: "footwear", maxStores: 5

  shallow
• search-catalog

  Search for products on any UCP-enabled Shopify store. Searches the store's live product catalog via UCP/MCP and returns matching products with titles, prices, variants, and images. Examples: - domain: "allbirds.com", query: "tree topper" - domain: "gymshark.com", query: "hoodie"

  shallow
• search-policies

  Search store policies on any UCP-enabled Shopify store. Query return policies, shipping policies, refund policies, privacy policies, terms of service, or any other store policy. Returns the matching policy text. Use this when a user asks about a store's policies before or after purchase — e.g., "what is the return policy?", "do they offer free shipping?", "refund window?" Example: domain: "allbirds.com", query: "return policy"

  shallow

Embed this server’s score

Tool count and median score across every tool in this server’s corpus — honest in a way a single cherry-picked tool’s badge wouldn’t be.

[![Vouch score](https://vouch.tools/api/servers/4bb471b5-abba-4882-98ac-2bdb74c18771/badge.svg)](https://vouch.tools/servers/4bb471b5-abba-4882-98ac-2bdb74c18771)