Next.js DevTools MCP
next-devtools-mcp is a Model Context Protocol (MCP) server that connects coding agents like Claude and Cursor to your running Next.js dev server.
It is a thin connector. It discovers running Next.js 16+ dev servers and proxies their built-in MCP endpoint (/_next/mcp) so agents get live runtime errors, routes, and logs. It also ships two gateways that point agents at tools they run directly: version-accurate docs and the agent-browser CLI.
[!NOTE] Docs and migration workflows no longer live in this server. Next.js bundles its own docs at
node_modules/next/dist/docs/, and upgrade / Cache Components workflows are distributed as agent skills. See Migrating from 0.3.x.
Requirements
- Node.js v20.19 or a newer LTS version
- npm or pnpm
- Next.js 16+ with a running dev server (for
nextjs_index/nextjs_call)
Install
Install for all your coding agents with add-mcp:
npx add-mcp next-devtools-mcp@latestAdd -y to skip the prompt and install to all detected agents. Add -g to install globally across all projects.
