Public Data Catalog MCP Server

by yhay81 Your server? Claim it

answering

Public Data Catalog is answering right now. Last checked 15 min ago. It exposes 3 tools. Last commit 9 Aug 2026.

Reviewed public-data search and execution with provenance and verifiable integrity receipts.

Uptime history 48 days of history

48 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

195 ms

Response time

average over 24h

Stars

last commit 9 Aug 2026

What the code does

We read the source, 22 h ago · tools taken from the live server · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Sends data to a third-party sink src/core.ts:722

  const requestBinding =

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 15 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add public-data-catalog --transport http https://public-data-catalog-mcp.yusuke8h.workers.dev/mcp

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

{
  "mcpServers": {
    "public-data-catalog": {
      "url": "https://public-data-catalog-mcp.yusuke8h.workers.dev/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.public-data-catalog]
url = "https://public-data-catalog-mcp.yusuke8h.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "public-data-catalog": {
      "url": "https://public-data-catalog-mcp.yusuke8h.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "public-data-catalog": {
      "url": "https://public-data-catalog-mcp.yusuke8h.workers.dev/mcp"
    }
  }
}

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.

data

search_data

Search current metadata from e-Gov Data Portal and Statistics Dashboard, then return a short ranked list with publisher, formats, coverage, usage terms, and official links.

execute

execute

Run one allowlisted, bounded HTTPS GET contract and return extracted values, provenance, and an integrity receipt.

verify

verify

Check receipt and result hashes plus the execution envelope against the reviewed catalog. This detects later modification; it does not prove publisher authenticity or current freshness.

Endpoints

URL	Transport	State	Latency	Checked
https://public-data-catalog-mcp.yusuke8h.workers.dev/mcp	streamable-http	answering	174 ms	15 min ago

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Public Data Catalog — questions

Answers built from our own checks of this server.

What can Public Data Catalog do?

It exposes 3 tools, read directly from the server on our last check. Among them: execute, search_data, verify. 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 Public Data Catalog 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 195 ms. The bar chart above shows every period we have measured.

How do I connect Public Data Catalog?

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 Public Data Catalog need an API key?

No. Public Data Catalog 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 Public Data Catalog?

It answers our handshake in 195 ms on average, which is faster than 68% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Public Data Catalog open source?

Yes — it is published under the MIT licence, written in Python, 0 stars on GitHub and 1 open issue. The source link is on this page, so you can read exactly what it does with your data before you connect it.