debugger MCP Server: Install & Setup

Install debugger in Claude Code

npm

Claude Code

claude mcp add debugger -- npx -y @debugmcp/mcp-debugger

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "debugger": {
      "command": "npx",
      "args": [
        "-y",
        "@debugmcp/mcp-debugger"
      ]
    }
  }
}

Docker

Claude Code

claude mcp add debugger -- docker run -i --rm docker.io/debugmcp/mcp-debugger:0.26.0

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "debugger": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/debugmcp/mcp-debugger:0.26.0"
      ]
    }
  }
}

Frequently asked questions

What does the debugger MCP server do?

Step-through debugging for AI agents: breakpoints, stepping and live variables in ten languages

Is the debugger MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does debugger run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add debugger to Claude Code?

Run: claude mcp add debugger -- npx -y @debugmcp/mcp-debugger

More ai agents & coding agents MCP servers

View all

Godot

182

satelliteoflove/godot-mcp

Agent-driven Godot playtesting: editor control, input injection, game-time stepping, live state.

LocalFree

Charlotte

184

ticktockbent/charlotte

Renders web pages into structured, agent-readable representations using headless Chromium.

LocalFree

CLI

177

MladenSU/cli-mcp-server

Command-line execution with customizable security policies.

LocalFreePython

Code Assistant

185

stippi/code-assistant

Coding agent with basic tools for listing, reading, editing and writing files, running commands and web search, supporting multiple projects at once.

LocalFreeRust

onsystem

1652.8k

dgesteves/onsystem

Catches palette colors, native elements and APIs your design system lacks in agent-written React.

LocalFree

PayPal

198

paypal/agent-toolkit

The PayPal Model Context Protocol server allows you to integrate with PayPal APIs through function calling. This protocol supports various tools to interact with different PayPal services.

LocalFree