MCP server for GDB and pwndbg

stateful system for autonomous pwn and binary research, designed for LLM agents.

Overview

pwno-mcp runs GDB + pwndbg in an isolated environment and exposes stateful debugging, exploit I/O, and helper tooling over MCP for agentic coding clients.

Features

• Stateful debugger sessions via GDB + pwndbg
• Deterministic execution control via GDB/MI
• Fast context snapshots for registers, stack, disassembly, source, and backtrace
• Interactive exploit-driver workflows with pwncli
• Multi-session support for parallel workflows
• Workspace automation helpers for commands, processes, Python, repos, and RetDec
• HTTP and stdio transport support

Documentation

The full documentation is available at docs.pwno.io.

Quick Start

Create a local workspace directory, put your target binary there, then run the container.

mkdir -p ./workspace
cp ./path/to/your/binary ./workspace/chal
chmod +x ./workspace/chal

docker run --rm -p 5500:5500 \
  --cap-add=SYS_PTRACE \
  --cap-add=SYS_ADMIN \
  --security-opt seccomp=unconfined \
  --security-opt apparmor=unconfined \
  -v "$PWD/workspace:/workspace" \
  ghcr.io/pwno-io/pwno-mcp:latest

Default MCP endpoint:

http://127.0.0.1:5500/mcp

For stdio mode, client configs, health checks, and attach-helper details, use the docs site: docs.pwno.io/quickstart.

Development

For local development, architecture, and contributing guidance, see docs.pwno.io/development.

Usage

• non-profit: yes
• commercial: oss@pwno.io

Future Enhancements

• WebSocket endpoint for streaming I/O
• Advanced memory analysis tools
• Heap exploitation helpers
• ROP chain generation
• Symbolic execution integration

License

This project is licensed under CC BY-NC-ND 4.0.

See LICENSE for details.

Contributing

Issues and pull requests are welcome.