Japan Subsidy Search

Official2 toolsLive

by fujimura-ui · TypeScript

Search Japanese government subsidies (official jGrants data): deadlines, amounts, eligibility.

Captured live from the server via tools/list.

search_subsidies

日本政府の公式データベース（jGrants）から補助金・助成金をリアルタイム検索する。募集中の案件を締切が近い順に返す。都道府県を指定すると、その地域限定の補助金と全国対象の補助金の両方を返す。各結果には申請ページURL・上限額・締切までの残り日数が含まれる。

Parameters4

keyword	string	required	検索キーワード（2文字以上。例: IT導入 / 省エネ / 創業 / 賃上げ / 観光）
prefecture	string	optional	都道府県名で絞り込み（例: 東京都 / 大阪府）。省略時は全地域
only_accepting	boolean	optional	trueなら現在募集中の案件のみ（デフォルト）。falseで過去・予定分も含む
max_results	integer	optional	最大件数（1〜50）

Raw schema

{
  "type": "object",
  "properties": {
    "keyword": {
      "type": "string",
      "minLength": 2,
      "description": "検索キーワード（2文字以上。例: IT導入 / 省エネ / 創業 / 賃上げ / 観光）"
    },
    "prefecture": {
      "description": "都道府県名で絞り込み（例: 東京都 / 大阪府）。省略時は全地域",
      "type": "string"
    },
    "only_accepting": {
      "default": true,
      "description": "trueなら現在募集中の案件のみ（デフォルト）。falseで過去・予定分も含む",
      "type": "boolean"
    },
    "max_results": {
      "default": 10,
      "description": "最大件数（1〜50）",
      "type": "integer",
      "minimum": 1,
      "maximum": 50
    }
  },
  "required": [
    "keyword"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}

get_subsidy_detail

補助金IDを指定して、目的・応募資格・補助率・応募期間・問い合わせ先などの詳細情報を取得する。IDはsearch_subsidiesの結果に含まれる。

Parameters1

string

required

補助金ID（例: a0WJ200000CDczHMAT）

Raw schema

{
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "minLength": 1,
      "maxLength": 18,
      "description": "補助金ID（例: a0WJ200000CDczHMAT）"
    }
  },
  "required": [
    "id"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}

README.md3 KBView on GitHub

Japan Subsidy Search MCP — 日本の補助金・助成金検索

Give your AI agent real-time access to Japanese government subsidies and grants.

This MCP server searches the official Japanese government subsidy database (jGrants, operated by the Digital Agency) in real time. Perfect for AI agents serving SMEs, accountants, administrative scriveners (行政書士), and consultants working with the Japanese market.

Why this server?

Japan runs thousands of subsidy programs — national, prefectural, and municipal — but the data is fragmented and Japanese-only. Foreign AI tools are effectively blind to it. This server makes the entire live database queryable by any MCP-compatible agent (Claude, ChatGPT, custom agents).

Tools

`search_subsidies`

Search open subsidy programs by keyword and prefecture. Returns results sorted by application deadline with:

Days until deadline (computed automatically)
Maximum grant amount (formatted, e.g. "5億円" / "3,500万円")
Direct link to the official application page
When a prefecture filter yields zero hits, automatically reports matching programs in other regions so your agent can offer alternatives

`get_subsidy_detail`

Retrieve full details by subsidy ID: purpose, eligibility requirements, subsidy rate, application rounds with current deadlines, and contact information — converted from rich-text HTML into clean, LLM-ready plain text.

Example queries your agent can now answer

「東京都の会社で使える省エネ補助金、締切が近い順に教えて」
"Find manufacturing subsidies open for applications in Osaka with deadlines this quarter"
「創業支援の補助金で、従業員10人以下でも申請できるものは？」

Data source & freshness

Official jGrants API (Digital Agency of Japan). Data is fetched live on every call — no stale caches. This server adds normalization, deadline computation, region merging, and LLM-friendly formatting on top of the raw government data.

Pricing

Pay per tool call. One search or one detail retrieval = one event. No subscription, no minimum.

日本語

日本政府公式の補助金データベース（デジタル庁 jGrants）をAIエージェントからリアルタイム検索できるMCPサーバーです。締切までの残り日数計算、地域限定＋全国対象の自動マージ、AIが読みやすい整形済みテキストを提供します。士業・中小企業支援・コンサルティング向けAIに最適です。

Get started

This is a hosted (remote) MCP server, available on Apify Store:

👉 https://apify.com/e-asakura/japan-subsidy-search-mcp

The store page includes setup instructions for Claude, ChatGPT, Cursor, and any MCP-compatible client. Pay-as-you-go: $0.02 per tool call, no subscription.

Built by Edward Asakura — Japanese data infrastructure for AI agents. Part of the SEKISHO series: subsidies / laws / parliament.

Install

Tools (2)

search_subsidiesget_subsidy_detail

Remote endpoint

Streamable HTTP

Hosted server - connect over the network, no local install.

url

https://hojokin-mcp.plus-synergy.workers.dev/mcp

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "japan-subsidy-search-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://hojokin-mcp.plus-synergy.workers.dev/mcp"
      ]
    }
  }
}

Desktop config is stdio-only; this bridges via mcp-remote. Native remote: Settings > Connectors.