Japan Data MCP Server
by izyuusyaio.github.Izyuusya/japan-data-mcpv0.1.1
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。
context tax
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security
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cold start
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freshness
Stale7mo ago
Install Japan Data MCP server
Install in Claude Code
claude mcp add japan-data-izyuusya -e ESTAT_APP_ID='<estat-app-id>' -e CORP_APP_ID='<corp-app-id>' -e REALESTATE_API_KEY='<realestate-api-key>' -- uvx japan-data-mcpInstall in Cursor
{
"mcpServers": {
"japan-data-izyuusya": {
"command": "uvx",
"args": [
"japan-data-mcp"
],
"env": {
"ESTAT_APP_ID": "<estat-app-id>",
"CORP_APP_ID": "<corp-app-id>",
"REALESTATE_API_KEY": "<realestate-api-key>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"japan-data-izyuusya": {
"command": "uvx",
"args": [
"japan-data-mcp"
],
"env": {
"ESTAT_APP_ID": "<estat-app-id>",
"CORP_APP_ID": "<corp-app-id>",
"REALESTATE_API_KEY": "<realestate-api-key>"
}
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"japan-data-izyuusya": {
"type": "stdio",
"command": "uvx",
"args": [
"japan-data-mcp"
],
"env": {
"ESTAT_APP_ID": "<estat-app-id>",
"CORP_APP_ID": "<corp-app-id>",
"REALESTATE_API_KEY": "<realestate-api-key>"
}
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"japan-data-izyuusya": {
"command": "uvx",
"args": [
"japan-data-mcp"
],
"env": {
"ESTAT_APP_ID": "<estat-app-id>",
"CORP_APP_ID": "<corp-app-id>",
"REALESTATE_API_KEY": "<realestate-api-key>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| ESTAT_APP_ID | yes | yes | e-Stat API Application ID (required). Free at https://www.e-stat.go.jp/api/api-info/api-guide |
| CORP_APP_ID | — | yes | Corporate Number Web-API Application ID (optional). Apply at https://www.houjin-bangou.nta.go.jp/webapi/ |
| REALESTATE_API_KEY | — | yes | Real Estate Information Library API Key (optional). Apply at https://www.reinfolib.mlit.go.jp/api/request/ |
Freshness
Stale — last maintenance signal 7mo ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-03-05 · 7mo ago · GitHub
Latest release
2026-03-03 · 7mo ago · GitHub · v0.2.0
Package published
no data · npm/PyPI
Registry entry updated
2026-02-26 · 8mo ago · official registry · v0.1.1
FAQ
›How do I install the Japan Data MCP server in Claude Code?
Run: claude mcp add japan-data-izyuusya -e ESTAT_APP_ID='<estat-app-id>' -e CORP_APP_ID='<corp-app-id>' -e REALESTATE_API_KEY='<realestate-api-key>' -- uvx japan-data-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Japan Data require an API key?
Yes. It expects ESTAT_APP_ID, CORP_APP_ID, REALESTATE_API_KEY, of which 3 are secrets.
›Can I use Japan Data as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Japan Data in the official MCP registry?
Yes, as io.github.Izyuusya/japan-data-mcp.