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UK Data: Catalogue MCP Server

answering

UK Data: Catalogue is answering right now. Last checked 9 min ago. It exposes 3 tools.

Search 16,000+ API operations and 95 built tools by need, then call any of them by name

Uptime history 69 hours of history
69 hours agonow
100.0%
Uptime 24h
91 of 91 checks
3
Tools
read from the server
106 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check UK Data: Catalogue 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 9 min ago.

run in your terminal
claude mcp add tool-catalogue --transport http https://ukdata.reliness.co.uk/mcp/catalogue
Settings → Connectors → Add custom connector, then paste this address
https://ukdata.reliness.co.uk/mcp/catalogue
~/.codex/config.toml
[mcp_servers.tool-catalogue]
url = "https://ukdata.reliness.co.uk/mcp/catalogue"
.cursor/mcp.json
{
  "mcpServers": {
    "tool-catalogue": {
      "url": "https://ukdata.reliness.co.uk/mcp/catalogue"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "tool-catalogue": {
      "type": "http",
      "url": "https://ukdata.reliness.co.uk/mcp/catalogue"
    }
  }
}

Available tools 3

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

apis
list_apis
List imported APIs with operation counts. Free. (cost: 0 credit)
call
call_tool
Call any tool by name with an arguments object, including imported API operations (api__operation). Costs what the tool costs. (cost: 1 credit)
tool
tool_search
Describe what you need in plain words and get the best matching tools (native and imported APIs) with their parameters and how to call them. Free. (cost: 0 credit)

Endpoints

URLTransportStateLatencyChecked
https://ukdata.reliness.co.uk/mcp/catalogue streamable-http answering 85 ms 9 min ago

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UK Data: Catalogue — questions

Answers built from our own checks of this server.

What can UK Data: Catalogue do?
It exposes 3 tools, read directly from the server on our last check. Among them: call_tool, list_apis, tool_search. 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 UK Data: Catalogue 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 106 ms. The bar chart above shows every period we have measured.
How do I connect UK Data: Catalogue?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does UK Data: Catalogue need an API key?
No. UK Data: Catalogue completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is UK Data: Catalogue?
It answers our handshake in 106 ms on average, which is faster than 93% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.