UK PostcodeKit MCP Server

by olsols4 Your server? Claim it

answering

UK PostcodeKit is answering right now. Last checked 1 min ago. Last commit 15 Oct 2026.

UK postcode lookup, nearest postcodes, autocomplete and distance (OS open data)

Uptime history 46 hours of history · worst hour 75%

46 hours agonow

98.9%

Uptime 24h

91 of 92 checks

—

Tools

hidden behind auth

733 ms

Response time

average over 24h

Stars

last commit 15 Oct 2026

UK PostcodeKit does not always answer

Over the last week it answered 99.4% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add ukpostcode --transport http https://uk-postcodekit-postcode-lookup-nearest-distance.p.rapidapi.com/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "ukpostcode": {
      "url": "https://uk-postcodekit-postcode-lookup-nearest-distance.p.rapidapi.com/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.ukpostcode]
url = "https://uk-postcodekit-postcode-lookup-nearest-distance.p.rapidapi.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "ukpostcode": {
      "url": "https://uk-postcodekit-postcode-lookup-nearest-distance.p.rapidapi.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "ukpostcode": {
      "url": "https://uk-postcodekit-postcode-lookup-nearest-distance.p.rapidapi.com/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, but it did not say what kind of credentials it expects.

Endpoints

URL	Transport	State	Latency	Checked
https://uk-postcodekit-postcode-lookup-nearest-distance.p.rapidapi.com/mcp	streamable-http	needs auth	382 ms	1 min ago

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UK PostcodeKit — questions

Answers built from our own checks of this server.

Why is there no tool list for UK PostcodeKit?

The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 98.9% of checks in the last 24 hours got a reply.

Is UK PostcodeKit working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 92 checks got a reply (98.9%), average response time 733 ms. The bar chart above shows every period we have measured.

How do I connect UK PostcodeKit?

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. You will need your own credentials: it refuses anonymous clients.

Does UK PostcodeKit need an API key?

Yes. Every time we knock, UK PostcodeKit answers with an authorization challenge instead of its tool list — that is how we know it is running and gated rather than broken. Bring your own credentials and it will talk.

How fast is UK PostcodeKit?

It answers our handshake in 733 ms on average, which is faster than 13% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is UK PostcodeKit open source?

We cannot say either way: written in Python and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.