io.github.atushi1841/japan-geospatial-open-data-mcp
Japan geospatial MCP: Apify:apify.com/fruitful_quintessence | Gumroad:atushi5.gumroad.com/l/kutuxe
What can you do with io.github.atushi1841/japan-geospatial-open-data-mcp?
- 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)
Install
Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).
https://github.com/atushi1841/japan-geospatial-open-data-mcp/releases/download/v1.0.0/japan-geospatial-open-data-mcp.mcpbDocumentation
From the project's README on GitHub, refreshed weekly. Links open on GitHub.
Contents
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 |
|---|---|---|
geocode_japan | 住所 → 緯度経度(GSI 住所検索 API, msearch.gsi.go.jp) | No |
get_gsi_tile | 地理院 XYZ タイル(std/pale/blank/aerial/vector)を base64 画像で取得 | No |
list_data_sources | アクセス可能な全データソース一覧と鍵要件 | No |
get_estat_data | e-Stat 統計データ取得(人口・人口動態・世帯 etc.) | ESTAT_APP_ID |
get_estat_meta | e-Stat 統計表メタ情報取得 | ESTAT_APP_ID |
list_school_districts | 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 |
get_school_district_geojson | 小学校区 GIS タイル (XKT004) GeoJSON 取得(不動産情報ライブラリ) | REINFOLIB_API_KEY |
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.
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.txt
Claude 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 | https://maps.gsi.go.jp/ | GSI tile terms (free, credit required) |
| e-Stat API | https://www.e-stat.go.jp/api/ | Open statistics (free, key registration) |
| MLIT Kokuto Suuchi Jhouhou | https://nlftp.mlit.go.jp/ksj/ | MLIT open data (free) |
| MLIT Real Estate Information Library | https://www.reinfolib.mlit.go.jp/ | 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)
Apify Store
This MCP server is published as an Apify Actor: japan-geospatial-open-data-mcp.
Apify Store: atushi1841
Data & Store
- Apify Store: https://apify.com/fruitful_quintessence
- Gumroad datasets: https://atushi5.gumroad.com/l/kutuxe
Frequently asked questions
What is io.github.atushi1841/japan-geospatial-open-data-mcp?
Japan geospatial MCP: Apify:apify.com/fruitful_quintessence | Gumroad:atushi5.gumroad.com/l/kutuxe
How do I install io.github.atushi1841/japan-geospatial-open-data-mcp?
Follow the installation steps in its documentation, shown on this page and in its repository.
Does io.github.atushi1841/japan-geospatial-open-data-mcp need an API key?
Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.
Is io.github.atushi1841/japan-geospatial-open-data-mcp open source?
Yes. Its code is on GitHub under the MIT license.
Who maintains io.github.atushi1841/japan-geospatial-open-data-mcp?
It is published by atushi1841. AI.tn lists it but does not maintain or endorse it.
From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.