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UCP Checker & Router MCP Server

by ucpchecker Your server? Claim it
answering

UCP Checker & Router is answering right now. Last checked 14 min ago. It exposes 10 tools.

Check any domain for UCP support and shop verified UCP stores: search, cart, checkout links.

Uptime history 7 days of history
7 days agonow
100.0%
Uptime 24h
91 of 91 checks
10
Tools
read from the server
277 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check UCP Checker & Router every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 14 min ago.

run in your terminal
claude mcp add ucp-checker --transport http https://ucpchecker.com/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "ucp-checker": {
      "url": "https://ucpchecker.com/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.ucp-checker]
url = "https://ucpchecker.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "ucp-checker": {
      "url": "https://ucpchecker.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "ucp-checker": {
      "url": "https://ucpchecker.com/mcp"
    }
  }
}

Available tools 10

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

all
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
build
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 } ]
cart
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"
catalog
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"
categories
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).
discover
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"
domain
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"
policies
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"
product
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"
stores
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.

Endpoints

URLTransportStateLatencyChecked
https://ucpchecker.com/mcp streamable-http answering 699 ms 14 min ago

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UCP Checker & Router — questions

Answers built from our own checks of this server.

What can UCP Checker & Router do?
It exposes 10 tools, read directly from the server on our last check. Among them: add-to-cart, build-bundle, check-domain, discover-store, get-product-details, list-categories and 4 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is UCP Checker & Router working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 277 ms. The bar chart above shows every period we have measured.
How do I connect UCP Checker & Router?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does UCP Checker & Router need an API key?
No. UCP Checker & Router completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 10 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is UCP Checker & Router?
It answers our handshake in 277 ms on average, which is faster than 60% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.