Next.js Router AnalyzerCAUTION

Demo

Features

• get-routers-info

The Router Analyzer scans your Next.js app directory structure and extracts information about all API routes, including:

• API paths
• HTTP methods (GET, POST, PUT, DELETE, etc.)
• Request parameters
• Status codes
• Request and response schemas

Installation

npm install next-mcp-server

Or if you're using pnpm:

pnpm add next-mcp-server

Usage

Command Line

You can run the mcp server directly:

npm run build
node dist/index.js

Docker

docker build -t mcp/next -f Dockerfile .
docker run mcp/next -d

For cursor usage, define a mcp.json under ~/.cursor or [projectDir]/.cursor

{
"mcpServers": {
"next.js": {
"url": "http://localhost:4857/sse"
}
}
}

The url here could vary based on your .env settings within the project.

Output

The tool generates detailed information about each route:

[
{
"filePath": "/path/to/your/app/api/test/route.ts",
"implementationPath": "/path/to/your/app/api/test/route.ts",
"apiPath": "/api/test",
"handlers": [
{
"method": "GET",
"path": "/api/test",
"functionSignature": "export async function GET(request: Request)",
"description": "Get test data",
"parameters": [],
"statusCodes": [200]
},
{
"method": "POST",
"path": "/api/test",
"functionSignature": "export async function POST(request: Request)",
"description": "Create test data",
"parameters": [],
"requestBodySchema": "{ name: string }",
"statusCodes": [201, 400]
}
]
}
]

Development

To run tests:

npm run test

To run the mcp server locally:

npm run build
node dist/index.js 

To run it from node_modules after npm i:

node node_modules/next-mcp-server/dist/index.js