What is Mcp Js Server Template

MCP-JS-Server-Template is a simplified template for creating Model Context Protocol (MCP) servers using JavaScript, designed for integration with Claude Desktop. It provides a basic structure to develop custom MCP servers with minimal boilerplate code.

Use cases

Use cases include developing custom tools for Claude Desktop, creating interactive applications that require MCP server functionality, and extending the template for specific project needs.

How to use

To use MCP-JS-Server-Template, clone the repository and install the required dependencies using npm. Configure the Claude Desktop settings to include the MCP server, specifying the command and arguments to run the server.

Key features

Key features include standard MCP server initialization, basic tools like ‘about’ and ‘hello’, adherence to MCP protocol version 2024-11-05, implementation using ‘@modelcontextprotocol/sdk’, and built-in error handling and logging.

Where to use

MCP-JS-Server-Template is suitable for developers looking to create custom MCP servers for applications that integrate with Claude Desktop, particularly in environments where JavaScript and Node.js are used.

MCP JS Server Template

Overview

This is a simplified template for creating Model Context Protocol (MCP) servers in JavaScript for integration with Claude Desktop. It provides a basic structure for developing custom MCP servers with minimal boilerplate code.

Features

• Implements standard MCP server initialization
• Provides two basic tools: about and hello
• Follows MCP protocol version 2024-11-05
• Uses @modelcontextprotocol/sdk for server implementation
• Includes error handling and logging

Prerequisites

• Node.js (v16 or later)
• Claude Desktop
• @modelcontextprotocol/sdk npm package

Installation

1. Clone the repository
2. Install dependencies:

npm install @modelcontextprotocol/sdk

Claude Desktop Configuration

Add to your Claude Desktop configuration file:

Location:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json

Configuration Example:

{
  "mcpServers": {
    "template-server": {
      "command": "node",
      "args": [
        "/full/path/to/simplified-template-mcp-server.js"
      ],
      "env": {
        "NODE_OPTIONS": "--no-deprecation"
      }
    }
  }
}

Available Tools

1. about

Returns information about the MCP server.

2. hello

Provides a greeting, with an optional name parameter.

Example Usage in Claude:

hello with name="Claude"

Extending the Template

To create your own MCP server:

1. Copy this template
2. Modify the TOOLS array
3. Implement custom tool handlers in server.fallbackRequestHandler
4. Update server name and version

Limitations

• Minimal error handling
• No advanced security features
• Meant as a starting point for custom implementations

Contributing

Contributions are welcome! Please submit pull requests or open issues.

License

MIT License