Joern MCP Server
@sfncat
Joern MCP Server について
A simple Joern MCP Server.
基本情報
設定
以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。
{
"mcpServers": {
"mcp-joern": {
"command": "uv",
"args": [
"venv",
".venv"
]
}
}
}ツール
ツールは検出されませんでした
ツールは README から自動的に抽出されます。メンテナーは ## Tools という見出しの下に記載することで、このタブに反映できます。
概要
What is Joern MCP Server?
An MCP server based on Joern that provides features for code review and security analysis. It is designed for developers using large language models to analyze source code.
How to use Joern MCP Server?
Install dependencies with Python 3.10+ and uv, start the Joern server with the provided command, copy env_example.txt to .env, modify JVM and auth settings, then configure the server in your MCP client (e.g., Cline) using the sample sample_cline_mcp_settings.json. Finally, ask questions to the language model as described in prompts_en.md.
Key features of Joern MCP Server
- Code review and security analysis via Joern
- MCP‑based integration with LLMs
- Scala tools for server interaction
- Test clients to verify connectivity
- Environment variable configuration support
Use cases of Joern MCP Server
- Automated security auditing of codebases
- Assisting LLMs in static analysis queries
- Integrating Joern’s code property graphs into MCP‑aware tools
FAQ from Joern MCP Server
What is Joern MCP Server?
A simple MCP Server for Joern that helps developers with code review and security analysis.
What are the environment requirements?
Python >= 3.10 (default 3.12), the uv package manager, and a running Joern instance.
How do I install it?
Clone the repository, create a virtual environment with uv venv .venv, activate it, and run uv sync.
How do I configure authentication?
The Joern server must be started with --server-auth-username and --server-auth-password flags; these values are then set in the .env file.
How can I contribute?
Submit Issues and Pull Requests to improve the project or add new tools.
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