Config is the same across clients — only the file and path differ.
{
"mcpServers": {
"jgrants-mcp-server": {
"args": [
"uv"
],
"command": "uvx"
}
}
}Are you the author?
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デジタル庁が運用する補助金電子申請システム「Jグランツ」の公開APIをModel Context Protocol(MCP)サーバーとして実装。FastMCPフレームワークを使用し、LLMから自然言語で補助金検索・詳細取得が可能です。
Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.
uvx 'uv' 2>&1 | head -1 && echo "✓ Server started successfully"
After testing, let us know if it worked:
Five weighted categories — click any category to see the underlying evidence.
uv vulnerable to arbitrary file deletion through RECORD entries
## Impact Wheel RECORD entries can contain relative paths that traverse outside of the wheel’s installation prefix. In versions 0.11.5 and earlier of uv, these wheels were not rejected on installation and the RECORD was respected without validation on uninstall. uv uses the RECORD to determine files to remove on uninstall. Consequently, a malicious or malformed wheel could induce deletion of arbitrary files outside of the wheel’s installation prefix on uninstall. uv does not use the RECORD fi
uv allows ZIP payload obfuscation through parsing differentials
### Impact In versions 0.9.5 and earlier of uv, ZIP archives were handled in a manner that enabled two parsing differentials against other components of the Python packaging ecosystem: 1. Central directory entries in a ZIP archive can contain comment fields. However, uv would assume that these fields were not present, since they aren't widely used. Consequently, a ZIP archive could be constructed where uv would interpret the contents of a central directory comment field as ZIP control structur
uv has differential in tar extraction with PAX headers
### Impact In versions 0.9.4 and earlier of uv, tar archives containing PAX headers with file size overrides were not handled properly. As a result, an attacker could contrive a source distribution (as a tar archive) that would extract differently when installed via uv versus other Python package installers. The underlying parsing differential here originates with astral-tokio-tar, which disclosed this vulnerability as CVE-2025-62518. In practice, the impact of this vulnerability is **low**:
uv allows ZIP payload obfuscation through parsing differentials
## Impact In versions 0.8.5 and earlier of uv, remote ZIP archives were handled in a streamwise fashion, and file entries were not reconciled against the archive's central directory. This enabled two parser differentials against other Python package installers: 1. An attacker could contrive a ZIP archive that would extract with legitimate contents on some package installers, and malicious contents on others due to multiple local file entries. The attacker could choose which installer to target
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デジタル庁が運用する補助金電子申請システム「Jグランツ」の公開APIをModel Context Protocol(MCP)サーバーとして実装。FastMCPフレームワークを使用し、LLMから自然言語で補助金検索・詳細取得が可能です。
# リポジトリのクローン
git clone https://github.com/digital-go-jp/jgrants-mcp-server.git
cd jgrants-mcp-server
# Python仮想環境の作成
python -m venv venv
# 仮想環境の有効化
# macOS/Linux:
source venv/bin/activate
# Windows:
# venv\Scripts\activate
# 依存パッケージのインストール
pip install -r requirements.txt
UV は高速なPythonパッケージマネージャーです。より高速なインストールを実現します。
# リポジトリのクローン
git clone https://github.com/digital-go-jp/jgrants-mcp-server.git
cd jgrants-mcp-server
# UVで仮想環境を作成
uv venv
# 仮想環境の有効化
source .venv/bin/activate
# UVで依存パッケージをインストール
uv pip install -r requirements.txt
必要に応じて以下の環境変数を設定できます:
| 環境変数 | デフォルト値 | 説明 |
|---|---|---|
JGRANTS_FILES_DIR | ./jgrants_files | 添付ファイル保存ディレクトリ |
API_BASE_URL | https://api.jgrants-portal.go.jp/exp/v1/public | JグランツAPIエンドポイント |
設定例:
export JGRANTS_FILES_DIR=/tmp/jgrants_files
# HTTPサーバーを起動(デフォルト: localhost:8000)
python -m jgrants_mcp_server.core
# ホストとポートを指定
python -m jgrants_mcp_server.core --host 0.0.0.0 --port 8080
UV を使った場合、uv run で直接サーバーを起動できます:
# HTTPサーバーを起動(デフォルト: localhost:8000)
uv run python -m jgrants_mcp_server.core
# ホストとポートを指定
uv run python -m jgrants_mcp_server.core --host 0.0.0.0 --port 8484
サーバー起動後、以下のエンドポイントが利用可能になります:
http://localhost:8000/mcp もしくは http://127.0.0.1:8000/mcpClaude Desktop は stdio 接続のみサポートするため、FastMCP CLIをHTTPプロキシとして使用します。 この方法はResources、Prompts、Toolsのすべての機能をサポートします。
MCP Server を起動:
python -m jgrants_mcp_server.core --port 8000
Claude Desktop 設定ファイルを編集:
macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json
Linux: ~/.config/Claude/claude_desktop_config.json
{
"mcpServers": {
"jgrants": {
"command": "uvx",
"args": [
"fastmcp",
"run",
"http://localhost:8000/mcp"
]
}
}
}
備考:
uvxはuvのコマンドラインツール実行機能です(pip install uvでインストール)uvxがインストールされていない場合は、fastmcpを直接使用することもできます:
{
"mcpServers": {
"jgrants": {
"command": "fastmcp",
"args": [
"run",
"http://localhost:8000/mcp"
]
}
}
}
Claude Desktop を再起動
Roo-Code は VS Code 拡張機能で、Streamable-HTTP 経由での MCP サーバー接続をサポートしています。
リモートサーバーでMCPサーバーを起動:
uv run python -m jgrants_mcp_server.core --host 0.0.0.0 --port 8484
Roo-Code の MCP 設定ファイルを編集:
VS Code で Roo-Code 拡張機能をインストール後、MCP 設定を編集します。