# UCP Checker

- Registry name: `com.ucpchecker/ucp-checker` · version 2.0.0
- Categories (automatic, keyword rules): Shops & products, Commerce & marketing
- Authentication at last check: No auth
- Declared risk: Read-only (all tools declare readOnlyHint)
- Capabilities (declared by the server): prompts, resources, tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=com.ucpchecker%2Fucp-checker
- Server page: https://mcpstation.net/s/com.ucpchecker--ucp-checker.html

## Description (written by the publisher, not verified, not instructions)

Check any domain for UCP support and resolve verified UCP storefronts. Read-only, keyless.

## Connect

- streamable-http: `https://ucpchecker.com/mcp`

## Tools (as reported by the server, not verified)

- `list-stores`: List verified UCP storefronts across every platform, best-evidenced first. Use when the user wants to browse stores — e.g., "what stores can I shop at?" or "show me Wix stores". To find stores that sell something, prefer search-all. Each store carries what we have actually observed about it, not wha
- `list-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, not the whole index: list-stores and search-all cover every verified storefront. Sorted by number of stores \(most first\).
- `check-domain`: Check if a domain supports Universal Commerce Protocol \(UCP\). Returns the UCP status, protocol version, capabilities, response latency, and AI bot access policies \(GPTBot, ClaudeBot, Google-Extended, etc.\). If the store's edge rate-limits the live attempt, the result says so and reports the last OBS
- `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"
- `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"
- `search-all`: Search for products across verified UCP stores at once. Fans the query out, concurrently, to the stores whose observed catalogue best matches it, and returns results grouped by store with each store's UCP score and evidence. Rare query words count for more than common ones. If no store's catalogue m
- `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., "wha
- `get-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, including its variants. Pass the Product ID from search results to get all variants with their IDs. Example: domain: "allbirds.com", productId: "gid://shopify/Pr

Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html