eMCP

A framework for building simple MCP servers with custom middleware

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Overview

eMCP is a framework designed for building simple Model Context Protocol (MCP) servers with custom middleware and built-in authentication handling. It serves as a fork of the LiteMCP TypeScript library, offering extended features while maintaining compatibility with existing LiteMCP tools.

To use eMCP, install it via Bun or NPM with the command npm i emcp or bun add emcp. You can then create a server instance and define your authentication logic and middleware as needed.

Near drop-in replacement for LiteMCP with all its features. - Built-in authentication handler for secure requests. - Support for custom layered middleware to enhance request processing.

Building secure MCP servers with custom authentication.
Implementing middleware for logging, error handling, or request modification.
Creating advanced server functionalities with layered processing.

Add to your AI client

Use these steps to connect eMCP in Cursor, Claude, VS Code, and other MCP-compatible apps. The same JSON appears in the Use with menu above for one-click copy.

Cursor

Add this to your .cursor/mcp.json file in your project root, then restart Cursor.

.cursor/mcp.json

{
  "mcpServers": {
    "emcp-joeymeere": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-emcp-joeymeere"
      ]
    }
  }
}

Claude Desktop

Add this server entry to the mcpServers object in your Claude Desktop config, then restart the app.

~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

{
  "mcpServers": {
    "emcp-joeymeere": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-emcp-joeymeere"
      ]
    }
  }
}

Claude Code

Add this to your project's .mcp.json file. Claude Code will detect it automatically.

.mcp.json (project root)

{
  "mcpServers": {
    "emcp-joeymeere": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-emcp-joeymeere"
      ]
    }
  }
}

VS Code (Copilot)

Add this to your .vscode/mcp.json file. Requires the GitHub Copilot extension with MCP support enabled.

.vscode/mcp.json

{
  "servers": {
    "emcp-joeymeere": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-emcp-joeymeere"
      ]
    }
  }
}

Windsurf

Add this to your Windsurf MCP config file, then restart Windsurf.

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "emcp-joeymeere": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-emcp-joeymeere"
      ]
    }
  }
}

Cline

Open Cline settings, navigate to MCP Servers, and add this server configuration.

Cline MCP Settings (via UI)

{
  "mcpServers": {
    "emcp-joeymeere": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-emcp-joeymeere"
      ]
    }
  }
}

Developer tools