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# Sumnara: 6 WebMCP tools for AI agents

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

Other · sumnara.jp

## Sumnara

Japanese search site for used condos in greater Tokyo. Agents can search by area, layout and price, find nearby units and open budget tools.

[Open sumnara.jp](https://sumnara.jp/)

## Ask an agent to

-   Find used 2LDK condos near Kichijoji under 60 million yen
-   List condos within 1.5 km of my office location
-   Open the budget calculator for my income and savings

## 6 tools

When we loaded sumnara.jp again on Oct 24, 2026, it registered these through `navigator.modelContext` or `provideContext()`, from earlier WebMCP drafts. Chrome 154 only offers `document.modelContext`, so Chrome’s own agent support does not see them.

-   `diagnoseBudget`
    
    年収・貯蓄・ローン条件から購入可能な物件価格を算出するページに移動する。
    
-   `diagnoseTown`
    
    ライフスタイルから住むのに合った街を診断するページに移動する。
    
-   `findNearbyEstates`read-only
    
    指定した緯度経度から半径内の物件を距離順で取得する。半径は 500m〜20000m の範囲、既定 1500m。
    
    lat: number, lon: number, radiusMeters: number?, limit: number?
    
-   `getEstateDetail`read-only
    
    物件 ID（UUID または wpId）から詳細情報を取得する。searchEstates / findNearbyEstates の結果に含まれる id を渡す。
    
    id: string
    
-   `searchEstates`read-only
    
    東京圏の中古マンション物件を検索する。キーワード（駅名・エリア名・マンション名）、市区町村、間取り、上限価格（万円）、駅徒歩分で絞り込み可能。
    
    query: string?, city: string?, layout: string?, priceMaxMan: number?, walkMax: number?, limit: number?
    
-   `startSwipe`
    
    Tinder 風スワイプ UI で物件をブラウズするページに移動する。
    

Tools

6

Registered with

JavaScript

Older API

navigator.modelContext

Tranco rank

#413,922

Scan finished

Oct 19, 2026

Tool names and descriptions are what sumnara.jp/ 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).

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