Radare2 MCP server

The Radare2 MCP Server provides a bridge between the powerful radare2 binary analysis framework and AI assistants like Claude. This integration allows you to perform binary analysis tasks directly through your AI assistant's interface, making reverse engineering more accessible and interactive.

Installation

The quickest way to install the radare2 MCP server is using the r2pm package manager:

r2pm -Uci r2mcp

This command installs the r2mcp executable in your r2pm's binary directory. Note that this binary is designed to be launched through an MCP service handler rather than directly from the command line.

Setting Up Claude Desktop Integration

To use radare2 with Claude Desktop, you'll need to update your Claude configuration file:

Locating Your Configuration File

Find your Claude Desktop configuration file in one of these locations:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

Updating the Configuration

1. Open your Claude Desktop app and press CMD + , to access Developer settings
2. Edit the configuration file by adding the following JSON:

{
  "mcpServers": {
    "radare2": {
      "command": "r2pm",
      "args": ["-r", "r2mcp"]
    }
  }
}

3. Save the file and restart the Claude Desktop app

Docker Installation Alternative

If you prefer using Docker, follow these steps:

1. Build the Docker image:

docker build -t r2mcp .

2. Update your Claude Desktop configuration to use the Docker image:

{
  "mcpServers": {
    "radare2": {
      "command": "docker",
      "args": ["run", "--rm", "-i", "-v", "/tmp/data:/data", "r2mcp"]
    }
  }
}

Using Radare2 Through Claude

After setting up the MCP server, you can:

• Analyze binary files directly within Claude
• Explore file structures and contents
• Perform reverse engineering tasks
• Execute radare2 commands and get interactive feedback

Simply ask Claude to perform radare2 operations on your binary files, and the MCP server will handle the communication between Claude and radare2.

How to add this MCP server to Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > MCP and click "Add new global MCP server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "cursor-rules-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "cursor-rules-mcp"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explictly ask the agent to use the tool by mentioning the tool name and describing what the function does.