io.github.Izyuusya/japan-data-mcp

japan-data-mcp

日本の公的データ（統計・法人・不動産）にAIからアクセスするMCPサーバー。e-Stat統計API・法人番号Web-API・不動産情報ライブラリAPIの3API統合。全国約1,700市区町村対応。

9 14 tools GitHub PyPI

No known CVEs

MIT license

Maintained

Last commit 174d ago

Works with most clients

Transport: stdio

14 tools · ~594 tok

Grade B · 0.3% of 200K ctx

MCPpedia last refreshed this data 16h ago

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io.github.Izyuusya/japan-data-mcp is an MCP server that 日本の公的データ（統計・法人・不動産）にAIからアクセスするMCPサーバー。e-Stat統計API・法人番号Web-API・不動産情報ライブラリAPIの3API統合。全国約1,700市区町村対応。. Its tool list has not been published yet over stdio, requires no API key, and scores 75/100 on MCPpedia's security, maintenance and efficiency rubric.

Data

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio · Node 18+

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

{
  "mcpServers": {
    "japan-data-mcp": {
      "env": {
        "CORP_APP_ID": "あなたのアプリケーションID（任意）",
        "ESTAT_APP_ID": "あなたのアプリケーションID",
        "REALESTATE_API_KEY": "あなたのAPIキー（任意）"
      },
      "args": [
        "run",
        "japan-data-mcp"
      ],
      "command": "uv"
    }
  }
}

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[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-izyuusya-japan-data-mcp)](https://mcppedia.org/s/io-github-izyuusya-japan-data-mcp)

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What io.github.Izyuusya/japan-data-mcp does

e-Stat（政府統計の総合窓口）、国税庁法人番号公表サイト、国土交通省不動産情報ライブラリ、適格請求書発行事業者公表サイトの API を通じて日本の公的データにアクセスし、人間が読みやすい形式に自動変換して返します。

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

uvx 'japan-data-mcp' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

75/100across 5 weighted dimensions

How we score →

0255075100

−25

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked japan-data-mcp against OSV.dev.

Inventory

Tools (14)

Click any tool to inspect its schema.

~594 tokens total

Community

Reviews

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How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.Izyuusya/japan-data-mcp safe to use?: io.github.Izyuusya/japan-data-mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.
How do I install io.github.Izyuusya/japan-data-mcp?: io.github.Izyuusya/japan-data-mcp supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can io.github.Izyuusya/japan-data-mcp do?: io.github.Izyuusya/japan-data-mcp provides 14 tools: search_statistics, get_regional_data, compare_regions, get_meta_info, resolve_area and 9 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with io.github.Izyuusya/japan-data-mcp?: io.github.Izyuusya/japan-data-mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.
Is io.github.Izyuusya/japan-data-mcp actively maintained?: io.github.Izyuusya/japan-data-mcp is less actively maintained — last commit was 174 days ago. It has 9 GitHub stars.

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Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

{ "mcpServers": { "japan-data-mcp": { "env": { "CORP_APP_ID": "あなたのアプリケーションID（任意）", "ESTAT_APP_ID": "あなたのアプリケーションID", "REALESTATE_API_KEY": "あなたのAPIキー（任意）" }, "args": [ "run", "japan-data-mcp" ], "command": "uv" } } }

Frequently Asked Questions

Is io.github.Izyuusya/japan-data-mcp safe to use?

io.github.Izyuusya/japan-data-mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.

How do I install io.github.Izyuusya/japan-data-mcp?

io.github.Izyuusya/japan-data-mcp supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can io.github.Izyuusya/japan-data-mcp do?

io.github.Izyuusya/japan-data-mcp provides 14 tools: search_statistics, get_regional_data, compare_regions, get_meta_info, resolve_area and 9 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with io.github.Izyuusya/japan-data-mcp?

io.github.Izyuusya/japan-data-mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.

Is io.github.Izyuusya/japan-data-mcp actively maintained?

io.github.Izyuusya/japan-data-mcp is less actively maintained — last commit was 174 days ago. It has 9 GitHub stars.