Vercel · Gemini CLI
Add the Next.js DevTools MCP server to Gemini CLI
Gives coding agents Next.js docs, runtime errors and upgrade helpers for your app.
Official serverLocalDeveloper tools
1. Add the server
Run in your terminal
gemini mcp add next-devtools npx -y next-devtools-mcp
2. Sign in
Run /mcp auth <name> inside Gemini CLI to sign in to an OAuth server. Next.js DevTools runs locally; set any credentials Vercel asks for before starting Gemini CLI.
3. Try it
Ask Gemini CLI for something Next.js DevTools can do. Gives coding agents Next.js docs, runtime errors and upgrade helpers for your app. Approve the first tool call and check the result before allowing write actions automatically.
- · In settings.json, streamable HTTP servers use httpUrl, SSE servers use url, local servers use command.
- · includeTools and excludeTools limit which tools the model sees.
FAQ
- How do I add the Next.js DevTools MCP server to Gemini CLI?
- Run: gemini mcp add next-devtools npx -y next-devtools-mcp. Run /mcp auth <name> inside Gemini CLI to sign in to an OAuth server.
- Is this the official Next.js DevTools MCP server?
- Yes. It is published by Vercel as io.github.vercel/next-devtools-mcp in the official MCP registry.
- Does the Next.js DevTools MCP server need an API key?
- It runs locally from a package. See Vercel's docs for any credentials it needs.
Links
Next.js DevTools in other clients
More developer tools for Gemini CLI
Work at Vercel?
Feature Next.js DevTools across the directory and its category from $49/month.
Reviewed Oct 5, 2026. Command generated from the registry record and checked against Gemini CLI's documented syntax.