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vercel/next-devtools-mcp releases

Official Next.js MCP server for coding agents. Provides runtime diagnostics, route inspection, dev server logs, docs search, and upgrade guides. Requires Next.js 16+ dev server for full runtime features.

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v0.4.0 Breaking risk
Breaking upgrade Auth

Tools removed, docs & browser eval changes

Open
v0.3.10 Maintenance

Minor fixes and improvements.

Full changelog

What's Changed

  • docs: add Google Antigravity configuration instructions to README by @0ldh in https://github.com/vercel/next-devtools-mcp/pull/111
  • Perf: Optimize doc lookup by @gaojude in https://github.com/vercel/next-devtools-mcp/pull/112

New Contributors

  • @0ldh made their first contribution in https://github.com/vercel/next-devtools-mcp/pull/111

Full Changelog: https://github.com/vercel/next-devtools-mcp/compare/v0.3.9...v0.3.10

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v0.3.8 Bug fix

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

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v0.3.7 Security relevant
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

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v0.3.6 Bug fix
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
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
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

New Contributors

  • @M1ngY made their first contribution in https://github.com/vercel/next-devtools-mcp/pull/88

Full Changelog: https://github.com/vercel/next-devtools-mcp/compare/v0.3.3...v0.3.4

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v0.3.3 Maintenance

Minor fixes and improvements.

Full changelog

What's Changed

  • Fix server discovery in WSL by @gaojude in https://github.com/vercel/next-devtools-mcp/pull/87
  • docs: move the mechanism to the bottom by @huozhi in https://github.com/vercel/next-devtools-mcp/pull/89

Full Changelog: https://github.com/vercel/next-devtools-mcp/compare/v0.3.2...v0.3.3

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v0.3.2 Breaking risk
Breaking changes
  • Removed `useCache` flag when migrating to cache components
Notable features
  • Added MCP Tool Usage Telemetry Tracking
  • Enriched cache components tool description
  • Handled use cache in route handler case
Full changelog

Improvements

  • enrich cache components tool desc by @huozhi in https://github.com/vercel/next-devtools-mcp/pull/82
  • remove useCache flag when migrate to cache components by @huozhi in https://github.com/vercel/next-devtools-mcp/pull/83
  • handle use cache in route handler case by @huozhi in https://github.com/vercel/next-devtools-mcp/pull/84
  • Add MCP Tool Usage Telemetry Tracking by @gaojude in https://github.com/vercel/next-devtools-mcp/pull/85

Full Changelog: https://github.com/vercel/next-devtools-mcp/compare/v0.3.1...v0.3.2

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v0.3.1 Maintenance

Minor fixes and improvements.

Full changelog

Patches

  • fix: find process helper cjs import by @huozhi in https://github.com/vercel/next-devtools-mcp/pull/81

Full Changelog: https://github.com/vercel/next-devtools-mcp/compare/v0.3.0...v0.3.1

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v0.3.0 New feature
Notable features
  • Add initialization tool for Next.js MCP
Full changelog

Feature

  • Add initialization tool for Next.js MCP by @gaojude in https://github.com/vercel/next-devtools-mcp/pull/79

Misc

  • Improve README clarity and remove outdated experimental MCP by @gaojude in https://github.com/vercel/next-devtools-mcp/pull/69
  • Migrate to using official MCP TS SDK by @quuu in https://github.com/vercel/next-devtools-mcp/pull/80

New Contributors

  • @quuu made their first contribution in https://github.com/vercel/next-devtools-mcp/pull/80

Full Changelog: https://github.com/vercel/next-devtools-mcp/compare/v0.2.6...v0.3.0

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v0.2.6 Maintenance

Minor fixes and improvements.

Full changelog

Patches

  • bump deps and lock exact version by @huozhi in #77 and #78

Full Changelog: https://github.com/vercel/next-devtools-mcp/compare/v0.2.5...v0.2.6

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v0.2.5 Maintenance

Minor fixes and improvements.

Full changelog

Patches

  • fix: discover next-server by @huozhi in https://github.com/vercel/next-devtools-mcp/pull/75

Full Changelog: https://github.com/vercel/next-devtools-mcp/compare/v0.2.4...v0.2.5

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v0.2.4 Bug fix
Notable features
  • Official docs search API for nextjs_docs tool
Full changelog

Patches

  • Fix Next.js runtime discovery on Windows by @gaojude in #67
  • fix: generateImageMetadata receives already awaited params by @icyJoseph in #71

Improvement

  • Use official docs search API to implement nextjs_docs MCP tool by @gaojude in #68

Misc

  • docs: update claude.md by @huozhi in https://github.com/vercel/next-devtools-mcp/pull/72
  • ci: add job to bump version by @huozhi in https://github.com/vercel/next-devtools-mcp/pull/73
  • ci: use vercel release bot by @huozhi in https://github.com/vercel/next-devtools-mcp/pull/74

New Contributors

  • @icyJoseph made their first contribution in https://github.com/vercel/next-devtools-mcp/pull/71

Full Changelog: https://github.com/vercel/next-devtools-mcp/compare/v0.2.3...v0.2.4

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v0.2.3 Maintenance

Minor fixes and improvements.

Full changelog

Improvements

  • reduce prompt token size by reorganizing the knowledge by @huozhi in https://github.com/vercel/next-devtools-mcp/pull/64
  • Clean up REQUIRES_CANARY_FOR_CACHE_COMPONENTS by @gaojude in https://github.com/vercel/next-devtools-mcp/pull/65
  • detect version channel by @huozhi in https://github.com/vercel/next-devtools-mcp/pull/66

Full Changelog: https://github.com/vercel/next-devtools-mcp/compare/v0.2.1...v0.2.3

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v0.2.2 Breaking risk
Breaking changes
  • Migration to the xmcp framework
Full changelog

Improvements

  • Migrate to xmcp framework by @gaojude in https://github.com/vercel/next-devtools-mcp/pull/60

Full Changelog: https://github.com/vercel/next-devtools-mcp/compare/v0.2.1...v0.2.2

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v0.2.0 New feature
Notable features
  • Automated upgrades to Next.js 16 with official codemods
  • Real-time runtime diagnostics from dev server
  • Browser automation for testing and verification
Full changelog

Next.js DevTools MCP

🎉 Frist official release of Next.js DevTool MCP

Next.js DevTool MCP is a MCP server that connects AI coding agents and assistants to your Next.js
applications, enabling direct interaction and intelligent automation.

Features

  • Automated upgrades to Next.js 16 with official codemods
  • Cache Components setup with error detection and fixing
  • Real-time runtime diagnostics from your dev server
  • Next.js 16 knowledge base and documentation search
  • Browser automation for testing and verification

Get started with the README.md or learn more in the Next.js MCP Guide.

View release on GitHub

Beta — feedback welcome: [email protected]