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# Japan Power Grid Map: 6 WebMCP tools for AI agents

![](https://www.google.com/s2/favicons?domain=ishikawa3.github.io&sz=96)

Public services · ishikawa3.github.io

## Japan Power Grid Map

Map of Japan's power lines, substations and plants. Agents can search facilities, move the map and filter by voltage.

[Open ishikawa3.github.io](https://ishikawa3.github.io/japan-grid-map/#5/37/138.5)

## Ask an agent to

-   Find the Shin-Shinano substation on the map
-   Show only 500kV and above transmission lines
-   Hide power plants and show substations only

## 6 tools

-   `get_map_view`read-only
    
    現在の地図の中心座標・ズーム、および表示中のレイヤ/電圧クラスの状態を返す。
    
-   `move_map`
    
    指定した緯度経度へ地図を移動する。
    
    lat: number, lon: number, zoom: number?
    
-   `search_power_facility`read-only
    
    日本全国の変電所・発電所・発電設備を名称で検索し、該当施設の名前・種別・事業者・座標を返す。地図は動かさない。
    
    query: string, limit: number?
    
-   `set_layer_visibility`
    
    変電所・発電所・鉄塔・発電設備の各レイヤの表示/非表示を切り替える。省略した項目は変更しない。
    
    substations: boolean?, plants: boolean?, towers: boolean?, generators: boolean?
    
-   `set_voltage_filter`
    
    表示する送電線の電圧クラスを設定する。クラス: 4=500 kV 以上, 3=220–275 kV, 2=110–187 kV, 1=60–77 kV, 0=60 kV 未満・不明
    
    classes: array
    
-   `show_power_facility`
    
    名称で検索した施設のうち最も一致するものへ地図を移動して表示する。検索結果が0件なら移動しない。
    
    query: string, zoom: number?
    

Tools

6

Registered with

JavaScript

Scan finished

Oct 19, 2026

Tool names and descriptions are what ishikawa3.github.io/japan-grid-map/#5/37/138.5 registered when we loaded it in Chrome 154 on Browser Use Cloud. The summary and the “ask an agent” lines are AI-written from them. To call the tools yourself, see [Chrome’s WebMCP docs](https://developer.chrome.com/docs/ai/webmcp). [How we found it](https://browser-use.com/webmcp#method).