Next.js DevTools MCP

Vercel's Next.js DevTools MCP server connects agents to a running Next.js development server for live runtime errors, routes, logs, and version-aware documentation. Why it matters: Web-app coding agents often guess from static files while the actual failure is visible in the dev server. Runtime context can make debugging loops shorter and less speculative.

Try this: On a non-critical Next.js 16+ app, connect the MCP server and compare one bug-fix task with and without live routes, logs, and runtime-error context.