MCP Server with Clerk & Next.js

A minimal example of an MCP server endpoint using Next.js and Clerk for authentication.

Setup

• Run npm i to install dependencies
• Create a Clerk application, and make sure that dynamic client registration has been toggled on in the dashboard.
• Put your API keys in an .env.local file in the project
• Run npm run dev to start the app

Connecting to the server

To test in cursor, for example, add the following config to your mcp config file:

"mcp-clerk-next": {
  "url": "http://localhost:3000/mcp"
}

Examples of other clients coming soon!