ida-pro-mcp 1.1.0

Vibe reversing with IDA Pro

IDA Pro MCP

Simple MCP Server to allow vibe reversing in IDA Pro.

https://github.com/user-attachments/assets/1479592f-8d2b-4aef-865f-e7d0424cb745

Available functionality:

• get_function_by_name(name): Get a function by its name
• get_function_by_address(address): Get a function by its address
• get_current_address(): Get the address currently selected by the user
• get_current_function(): Get the function currently selected by the user
• list_functions(): List all functions in the database
• decompile_function(address): Decompile a function at the given address
• show_decompilation(address): Show a function in the decompiler
• show_disassembly(address): Show an address in the disassembly view
• rename_local_variable(function_address, old_name, new_name): Rename a local variable in a function
• rename_function(function_address, new_name): Rename a function
• set_function_prototype(function_address, prototype): Set a function's prototype
• set_local_variable_type(function_address, variable_name, new_type): Set a local variable's type
• get_metadata(): Show metadata about the current IDB

There are a few IDA Pro MCP servers floating around, but I created my own for a few reasons:

1. The plugin installation should not require installing dependencies, just copy mcp-plugin.py in the IDA plugins folder and go!
2. The architecture of other plugins make it difficult to add new functionality quickly (too much boilerplate of unnecessary dependencies).
3. Learning new technologies is fun!

If you want to check them out, here is a list (in the order I discovered them):

• https://github.com/taida957789/ida-mcp-server-plugin (SSE protocol only, requires installing dependencies in IDAPython)
• https://github.com/fdrechsler/mcp-server-idapro (MCP Server in TypeScript, excessive boilerplate required to add new functionality)
• https://github.com/MxIris-Reverse-Engineering/ida-mcp-server (custom socket protocol, boilerplate)

IDA Pro Installation

1. Copy mcp-plugin.py in your plugins folder (%appdata%\Hex-Rays\IDA Pro\plugins on Windows)
2. Open an IDB and click Edit -> Plugins -> MCP to start the server

MCP Server Installation (Cline/Claude)

To install the MCP server in Cline, follow these steps:

1. Install uv globally:
   • Windows: pip install uv
   • Linux/Mac: curl -LsSf https://astral.sh/uv/install.sh | sh
2. Clone this repository, for this example C:\MCP\ida-pro-mcp.
3. Navigate to the Cline MCP Servers configuration (see screenshot).
4. Click on the Installed tab.
5. Click on Configure MCP Servers, which will open cline_mcp_settings.json.
6. Add the ida-pro-mcp server:

{
  "mcpServers": {
    "github.com/mrexodia/ida-pro-mcp": {
      "command": "uv",
      "args": [
        "--directory",
        "c:\\MCP\\ida-pro-mcp",
        "run",
        "server.py"
      ],
      "timeout": 600
    }
  }
}

Development

uv run fastmcp dev server.py

This will open a web interface at http://localhost:5173 and allow you to interact with the MCP tools for testing.

Adding new features is a super easy and streamlined process. All you have to do is add a new @jsonrpc function to mcp-plugin.py and your function will be available in the MCP server without any additional boilerplate! Below is a video where I add the get_metadata function in less than 2 minutes (including testing):

https://github.com/user-attachments/assets/951de823-88ea-4235-adcb-9257e316ae64

Available tools

<use_mcp_tool>
<server_name>github.com/mrexodia/ida-pro-mcp</server_name>
<tool_name>get_current_function</tool_name>
<arguments></arguments>
</use_mcp_tool>