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UK Data: Reference MCP Server

by co-reliness Your server? Claim it
answering

UK Data: Reference is answering right now. Last checked 7 min ago. It exposes 6 tools.

Wikipedia summaries, books by ISBN, products by barcode, IP ownership, unit conversion

Uptime history 69 hours of history
69 hours agonow
100.0%
Uptime 24h
92 of 92 checks
6
Tools
read from the server
122 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: Reference 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 7 min ago.

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

Available tools 6

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

book
book_lookup
Book details by ISBN, or search books by title or author. (cost: 1 credit)
convert
convert_units
Convert length, mass, volume (UK and US), area, speed, energy, data, pressure and temperature. (cost: 1 credit)
format
format_money
Format an amount in any currency and locale, compact form, and optionally in words (for cheques and contracts). (cost: 1 credit)
lookup
ip_lookup
Who owns an IP address: network name, range, country, organisations (RDAP). (cost: 1 credit)
product
product_barcode
Food product by barcode: name, brand, ingredients, allergens, Nutri-Score, nutrition per 100g. (cost: 1 credit)
wikipedia
wikipedia_summary
Lead summary, description, coordinates and Wikidata id for a Wikipedia article. (cost: 1 credit)

Endpoints

URLTransportStateLatencyChecked
https://ukdata.reliness.co.uk/mcp/reference streamable-http answering 87 ms 7 min ago

Alternatives to UK Data: Reference

same job, measured the same way
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Search and read Wikipedia in any language: summaries and full articles. Free, no key.

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Dbpedia
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UK Data: Web research
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Wayback Machine snapshots, on-page SEO audits and Wikidata facts about companies and people

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Mindbase
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LLM-maintained personal wiki: cross-references sources, flags contradictions. Local markdown.

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UK Data: Reference — questions

Answers built from our own checks of this server.

What can UK Data: Reference do?
It exposes 6 tools, read directly from the server on our last check. Among them: book_lookup, convert_units, format_money, ip_lookup, product_barcode, wikipedia_summary. 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: Reference working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 122 ms. The bar chart above shows every period we have measured.
How do I connect UK Data: Reference?
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: Reference need an API key?
No. UK Data: Reference completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is UK Data: Reference?
It answers our handshake in 122 ms on average, which is faster than 91% 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.