japan-geospatial-open-data-mcp
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@japan-geospatial-open-data-mcp東京都渋谷区の小学校区はどれ?"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
japan-geospatial-open-data-mcp
日本全国規模のジオスパティアル・オープンデータを AI エージェントに届ける MCP Server。 GSI 地理院タイル・地理院住所検索・e-Stat 統計 API・国土数値情報(小学校区)・不動産情報ライブラリを 1 つの MCP でまとめて公開する。
Context: FOSS4G Hiroshima 2026 発表「Building an MCP Server Ecosystem on Japan's National-Scale Geospatial Open Data Platform」(Mami Enomoto, MLIT) が示した方向性に追従するエコシステム構築タスク。 Needs: 不動産分析(学区・用途地域)・教育インフラ評価・防災・都市計画。 TOS: GSI/e-Stat/国土数値情報は公式オープンデータ・再利用自由。
Tools (7)
Tool | Description | Key required |
| 住所 → 緯度経度(GSI 住所検索 API, msearch.gsi.go.jp) | No |
| 地理院 XYZ タイル(std/pale/blank/aerial/vector)を base64 画像で取得 | No |
| アクセス可能な全データソース一覧と鍵要件 | No |
| e-Stat 統計データ取得(人口・人口動態・世帯 etc.) |
|
| e-Stat 統計表メタ情報取得 |
|
| 全国小学校区 (A27) GML/GeoJSON ファイル一覧(国土数値情報, nlftp.mlit.go.jp) | No |
| 小学校区 GIS タイル (XKT004) GeoJSON 取得(不動産情報ライブラリ) |
|
Environment variables (optional)
ESTAT_APP_ID— e-Stat application ID (free: https://www.e-stat.go.jp/api/)REINFOLIB_API_KEY— MLIT Real Estate Information Library API key (application: https://www.reinfolib.mlit.go.jp/)USER_AGENT— override default User-Agent string
No keys → core GSI + school district listing still works out of the box.
Related MCP server: Magic Lane MCP Server
Install
git clone https://github.com/atushi1841/japan-geospatial-open-data-mcp
cd japan-geospatial-open-data-mcp
python3 -m venv .venv && source .venv/bin/activate
pip install -r requirements.txtClaude Desktop config
{
"mcpServers": {
"japan-geospatial-open-data": {
"command": "/path/to/japan-geospatial-open-data-mcp/.venv/bin/python",
"args": ["/path/to/japan-geospatial-open-data-mcp/src/server.py"],
"env": {
"ESTAT_APP_ID": "your-e-stat-app-id",
"REINFOLIB_API_KEY": "your-reinfolib-key"
}
}
}
}Example queries
「東京都渋谷区の小学校区はどれか」 →
geocode_japan("東京都渋谷区")→list_school_districts「渋谷区の航空写真 2024 年をズーム 15 で表示」 →
get_gsi_tile(layer="nendophoto2024", lat=35.657, lon=139.698, z=15)「日本の 2020 年人口(年齢別)」 →
get_estat_data(table_key="population")「地価公示ポイントの GeoJSON」 → (future:
get_reinfolib_xkt004系)
Data sources & licensing
Source | URL | License |
GSI tiles & geocoder | GSI tile terms (free, credit required) | |
e-Stat API | Open statistics (free, key registration) | |
MLIT Kokuto Suuchi Jhouhou | MLIT open data (free) | |
MLIT Real Estate Information Library | MLIT open data (free, application) |
Credit requirement: when using GSI tiles, include "Geospatial Information Authority of Japan" in your output.
MCP Registry
Publishing to the official MCP Registry is a follow-up task.
The mcp-publisher CLI (GitHub auth, io.github.atushi1841/japan-geospatial-open-data-mcp namespace) is the standard flow.
Roadmap / future tools
用途地域 (zoning) GeoJSON from reinfolib
洪水浸水想定区域 / 土砂災害警戒区域 hazard layers (reinfolib)
地価公示 point API
e-Stat 250m mesh population for density analysis
中学校区 (A28) listing
Bulk GeoJSON download helper for nlftp files (A27 prefecture-level GML)
This server cannot be deployed
Maintenance
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