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GDB Debugger

v1.0.0•Developer Tools•stable

An MCP server that enables AI assistants to control GDB debugging sessions, including breakpoint management, thread analysis, and variable inspection, using the GDB/MI protocol.

gdbmcpai-integration
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What is GDB Debugger?

GDB Debugger is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to mcp server that enables ai assistants to control gdb debugging sessions, including breakpoint management, thread analysis, and variable inspection, using the gdb/mi protocol.

An MCP server that enables AI assistants to control GDB debugging sessions, including breakpoint management, thread analysis, and variable inspection, using the GDB/MI protocol.

This server falls under the Developer Tools category on MCPgee, the world's largest MCP server directory with 33,000+ servers.

Features

  • An MCP server that enables AI assistants to control GDB debu

Use Cases

Control GDB debugging sessions with breakpoint management.
Analyze threads and inspect variables through Claude.
Automate debugging workflows via GDB/MI protocol.
traver88

Maintainer

LicenseMIT
Languagepython
Versionv1.0.0
UpdatedApr 23, 2026
Statushealthy
Maintenanceactive

Works with

ClaudeOpenAIwindowsmacoslinux
View SourceBrowse All Servers

Installation

Manual Installation

npx gdb

Configuration

Configuration Details

Config File

claude_desktop_config.json

Performance

Response Metrics

Response Time< 200ms
ThroughputMedium

Resource Usage

Memory UsageLow
CPU UsageLow

How to Set Up and Use GDB Debugger

The GDB MCP server bridges AI assistants like Claude with live GDB debugging sessions via the GDB/MI protocol, exposing over a dozen tools that cover the full debugging lifecycle: loading binaries, setting breakpoints, controlling execution, reading memory and registers, analyzing ELF files, and connecting to remote gdbserver instances. Rather than copying crash output into a chat window, you can let Claude drive a real debugger against your binary and ask it to diagnose crashes, inspect stack frames, or search memory — all interactively. It is particularly useful for reverse engineering, embedded firmware debugging, and automated analysis of hard-to-reproduce bugs.

Prerequisites

  • Python 3.9 or later installed on your system
  • GDB installed and accessible on your PATH (or specify its path via GDB_MCP_GDB_PATH)
  • An MCP-compatible client such as Claude Desktop or Cursor
  • The gdb-mcp Python package installed in a virtual environment
1

Clone the repository and create a virtual environment

Clone the gdb-mcp repository and set up a Python virtual environment to isolate dependencies.

git clone https://github.com/traver88/gdb-mcp.git
cd gdb-mcp
python -m venv .venv
source .venv/bin/activate   # Windows: .venv\Scripts\Activate.ps1
pip install -e .
2

Verify GDB is accessible

Confirm GDB is on your PATH. If GDB lives in a non-standard location (e.g., a cross-compiler toolchain), note the full path — you will set it as GDB_MCP_GDB_PATH in the config.

gdb --version
3

Configure your MCP client

Add the gdb-mcp server to your MCP client config. Point to the Python executable inside the virtual environment you created and pass the module entry point.

{
  "mcpServers": {
    "gdb": {
      "command": "/path/to/gdb-mcp/.venv/bin/python",
      "args": ["-m", "gdb_mcp.server"],
      "env": {
        "GDB_MCP_GDB_PATH": "gdb",
        "GDB_MCP_DEFAULT_TIMEOUT": "10",
        "GDB_MCP_READ_ONLY_MODE": "false"
      }
    }
  }
}
4

Restart your MCP client

Save the config and restart your MCP client so it picks up the new server. The GDB tools (gdb_session, gdb_load, gdb_breakpoint, gdb_run_control, gdb_memory, etc.) will appear in the tool list.

5

Start a debugging session

Ask Claude to start a GDB session, load your binary, set a breakpoint, and run it. Claude will invoke the appropriate GDB tools in sequence and report back what it finds at each step.

GDB Debugger Examples

Client configuration

Claude Desktop configuration using a local Python virtual environment to run gdb-mcp.

{
  "mcpServers": {
    "gdb": {
      "command": "/path/to/gdb-mcp/.venv/bin/python",
      "args": ["-m", "gdb_mcp.server"],
      "env": {
        "GDB_MCP_GDB_PATH": "gdb",
        "GDB_MCP_DEFAULT_TIMEOUT": "10",
        "GDB_MCP_MAX_MEMORY_READ": "4096",
        "GDB_MCP_ENABLE_RAW_GDB_EXEC": "true",
        "GDB_MCP_READ_ONLY_MODE": "false"
      }
    }
  }
}

Prompts to try

Example prompts that exercise GDB debugging through the AI assistant.

- "Start a GDB session, load /home/user/builds/myapp, set a breakpoint at main, and run it"
- "Read the current stack trace and explain what caused the segmentation fault"
- "List all threads in the current GDB session and show their states"
- "Read 128 bytes from the stack pointer register and look for anything suspicious"
- "Connect to a remote gdbserver at 192.168.1.50:1234 and list the loaded libraries"
- "Analyze the ELF headers of /path/to/binary and summarize security mitigations (ASLR, NX, etc.)"

Troubleshooting GDB Debugger

GDB not found or session fails to start

Set GDB_MCP_GDB_PATH in the env block to the absolute path of your GDB executable (e.g., /usr/bin/gdb or /opt/cross/bin/arm-none-eabi-gdb). Run 'which gdb' in a terminal to find it.

Commands time out immediately

Increase GDB_MCP_DEFAULT_TIMEOUT from 10 to a higher value (e.g., 30) for programs that take longer to start or hit breakpoints. Set it in the env section of your MCP config.

Memory write or destructive operations are blocked

If GDB_MCP_READ_ONLY_MODE is set to true, all state-modifying operations are disabled. Set it to false to allow writes, or leave it true for safe read-only analysis of production binaries.

Frequently Asked Questions about GDB Debugger

What is GDB Debugger?

GDB Debugger is a Model Context Protocol (MCP) server that mcp server that enables ai assistants to control gdb debugging sessions, including breakpoint management, thread analysis, and variable inspection, using the gdb/mi protocol. It connects AI assistants to external tools and data sources through a standardized interface.

How do I install GDB Debugger?

Follow the installation instructions on the GDB Debugger GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.

Which AI clients work with GDB Debugger?

GDB Debugger works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.

Is GDB Debugger free to use?

Yes, GDB Debugger is open source and available under the MIT license. You can use it freely in both personal and commercial projects.

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Quick Config Preview

{ "mcpServers": { "gdb": { "command": "npx", "args": ["-y", "gdb"] } } }

Add this to your claude_desktop_config.json or .cursor/mcp.json

Read the full setup guide →

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