vercel/next-devtools-mcp

MCP Developer Tools

A Model Context Protocol server that adds Next.js development tools for AI coding agents like Claude, Cursor, and others

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TypeScript Latest v0.3.10 · 4mo ago Security brief →

Features

Provides runtime diagnostics for Next.js projects via MCP endpoints
Enables AI assistants to query live application state (errors, routes, logs)
Supports automatic initialization of context with the `init` tool
Works across multiple coding‑agent platforms (Claude, Cursor, VS Code Copilot, etc.)

Recent releases

View all 16 releases →

v0.3.8 Bug fix 5mo

Minor fixes and improvements.

Full changelog

What's Changed

fix: filter base64 image from screenshot result by @Burry in https://github.com/vercel/next-devtools-mcp/pull/105
fix(init): avoid agent idle caused by strict reply prohibition (fix #109) by @MapleCity1314 in https://github.com/vercel/next-devtools-mcp/pull/110

New Contributors

@Burry made their first contribution in https://github.com/vercel/next-devtools-mcp/pull/105
@MapleCity1314 made their first contribution in https://github.com/vercel/next-devtools-mcp/pull/110

Full Changelog: https://github.com/vercel/next-devtools-mcp/compare/v0.3.7...v0.3.8

View release on GitHub

v0.3.7 Security relevant 5mo

Security fixes

CVE-2025-66414 in @modelcontextprotocol/sdk 1.24.3
CVE-2025-55182 in Next.js 16.0.7

Full changelog

Fixes

fix: upgrade @modelcontextprotocol/sdk to 1.24.3 (CVE-2025-66414) by @gaojude in https://github.com/vercel/next-devtools-mcp/pull/107

Misc

fix: upgrade Next.js to 16.0.7 (CVE-2025-55182) by @ctate in https://github.com/vercel/next-devtools-mcp/pull/106
@ctate made their first contribution in https://github.com/vercel/next-devtools-mcp/pull/106

Full Changelog: https://github.com/vercel/next-devtools-mcp/compare/v0.3.6...v0.3.7

View release on GitHub

v0.3.6 Bug fix 6mo

Notable features

Improved port discovery

Full changelog

Improvements

Fix screenshot action using wrong Playwright MCP tool name by @gaojude in https://github.com/vercel/next-devtools-mcp/pull/98
Improve port discovery by @gaojude in https://github.com/vercel/next-devtools-mcp/pull/101

Misc

ci: update server.json for mcp registry when bump version by @huozhi in https://github.com/vercel/next-devtools-mcp/pull/102
Add troubleshooting section for common user issues by @gaojude in https://github.com/vercel/next-devtools-mcp/pull/97

Full Changelog: https://github.com/vercel/next-devtools-mcp/compare/v0.3.5...v0.3.6

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v0.3.5 New feature 6mo

Notable features

Combine Next.js server and tool listings to simplify discovery

Full changelog

What's Changed

Simplify Next.js server discovery by combining server and tool listing by @gaojude in https://github.com/vercel/next-devtools-mcp/pull/96

Full Changelog: https://github.com/vercel/next-devtools-mcp/compare/v0.3.4...v0.3.5

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v0.3.4 New feature 6mo

Notable features

HTTPS support for Next.js dev servers
Next.js documentation resources via llms.txt

Full changelog

Improvements

feat: add HTTPS support for Next.js dev servers by @M1ngY @huozhi in #88, #93
add nextjs doc llms.txt content as resources by @huozhi in https://github.com/vercel/next-devtools-mcp/pull/92