Categories › Web & Browser › Web search engines & search APIs
Check any domain for UCP support and resolve verified UCP storefronts. Read-only, keyless.
Remote server: your requests and data go to ucpchecker.com. Claude Code: claude mcp add --transport http ucp-checker https://ucpchecker.com/mcp · Claude app: Settings → Connectors → Add custom connector.
The tools this server listed when we connected to it, in its own words.
list-stores — List verified UCP storefronts across every platform, best-evidenced first. Use when the user wants to browse stores — e.g., "what stores canlist-categories — List store categories with store counts. Categories exist only for the deeply audited subset of verified stores, so this is a way to browse,check-domain — Check if a domain supports Universal Commerce Protocol (UCP). Returns the UCP status, protocol version, capabilities, response latency, and 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, 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 wisearch-all — Search for products across verified UCP stores at once. Fans the query out, concurrently, to the stores whose observed catalogue best matchesearch-policies — Search store policies on any UCP-enabled Shopify store. Query return policies, shipping policies, refund policies, privacy policies, terms oget-product-details — Get full product details including variant IDs from a UCP-enabled store. Use after search-catalog to see a product's full declared detail, iNot tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.