Show HN: Node.js Debugger MCP. Run and debug long-lived apps with Claude Code
This is an open-source MCP server that helps AI coding agents manage and debug live Node.js processes. It supports:
- Starting and stopping Node.js scripts without blocking the terminal
- Attaching to the Chrome DevTools Protocol for real debugging
- Setting breakpoints, stepping through code, and evaluating expressions
- Managing multiple processes and debug sessions across time
You can use it to reliably launch scripts like npm run dev, pause at the first line, attach a debugger, and walk through your code step by step, all from within Claude Code in the terminal.
GitHub: https://github.com/qckfx/node-debugger-mcp
Would appreciate any feedback or ideas. If you're building with Claude Code or working on your own AI coding tools, happy to help you get started.
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