Vercel's Next.js DevTools MCP server gives coding agents Next.js documentation search, access to a running dev server's errors, logs, routes and page metadata, browser automation for testing, and guided upgrades to Next.js 16. It runs locally via npx and needs no authentication.
Connect
- 1Add the server to Codex
codex mcp add nextjs-devtools -- npx -y next-devtools-mcp@latest
Configs are generated from the publisher's documented endpoint. Check their docs for plan requirements and scopes. New to this? Read the step-by-step tutorial.
Tools 6
nextjs_indexnextjs_callnextjs_docsbrowser_evalinitupgrade_nextjs_16Things to ask
- “What errors is my Next.js dev server showing right now?”
- “Upgrade this project to Next.js 16”
- “List the routes in my app and which are server components”
- “How do I configure caching for this route in the latest Next.js?”