TypeScript Tools Server

A Model Context Protocol (MCP) server implementation in TypeScript that provides various utility tools for LLMs like Claude. This server includes calculator, datetime, and note-taking tools, with an extensible architecture for adding more tools.

Features

• 🧮 Calculator tool for basic mathematical operations
• 📅 DateTime tool for current date/time in different formats
• 📝 Notes tool for saving and retrieving text notes
• 🔌 Compatible with Claude for Desktop and Cursor
• 🚀 Easy to extend with new tools

Prerequisites

• Node.js (v16 or higher)
• npm (comes with Node.js)
• Claude for Desktop and/or Cursor (for using the tools)

Installation

1. Clone the repository:

git clone <your-repo-url>
cd MCP

2. Install dependencies:

npm install

3. Build the project:

npm run build

Setting Up with Claude for Desktop

1. Open or create your Claude desktop configuration file:

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

2. Add the MCP server configuration:

{
  "mcpServers": {
    "MCPllmContext": {
      "command": "node",
      "args": [
        "ABSOLUTE_PATH_TO_YOUR_PROJECT/dist/index.js"
      ]
    }
  }
}

Replace ABSOLUTE_PATH_TO_YOUR_PROJECT with the actual path to your project directory.

3. Restart Claude for Desktop
4. Look for the hammer icon in the input box to confirm the tools are available

Setting Up with Cursor

1. Open Cursor
2. Go to Cursor Settings > Features > MCP
3. Click on + Add New MCP Server
4. Fill in the form:
   • Type: stdio
   • Name: MCPllmContext
   • Command: node ABSOLUTE_PATH_TO_YOUR_PROJECT/dist/index.js

Available Tools

Calculator

• Tool name: calculate
• Description: Evaluates mathematical expressions
• Usage: "Calculate 2 + 2"

DateTime

• Tool name: current-date
• Description: Returns current date/time
• Formats: "short" or "long"
• Usage: "What's today's date?"

Notes

• Tool name: save-note, get-note, list-notes
• Description: Save and retrieve text notes
• Usage: "Save a note titled 'Meeting' with content 'Discuss project'"

Adding New Tools

1. Create a new file in src/tools/ (e.g., src/tools/myTool.ts)
2. Implement your tool using the template:

import { z } from "zod";
import type { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";

export function registerMyTools(server: McpServer) {
  server.tool(
    "tool-name",
    { 
      param: z.string().describe("Parameter description") 
    },
    async ({ param }) => {
      return {
        content: [{ type: "text", text: "Result" }]
      };
    }
  );
}

3. Export your tool in src/tools/index.ts
4. Register your tool in src/index.ts

Development

# Build the project
npm run build

# Run the server directly
node dist/index.js

# Watch for changes (if you have nodemon installed)
nodemon dist/index.js

Troubleshooting

Claude for Desktop Issues

• Check the logs at %APPDATA%\Claude\logs\mcp*.log (Windows) or ~/Library/Logs/Claude/mcp*.log (macOS)
• Verify the path in claude_desktop_config.json is absolute and correct
• Make sure the server is built (npm run build)
• Restart Claude for Desktop after configuration changes

Cursor Issues

• Verify the command path in Cursor's MCP settings
• Try refreshing the tool list in the MCP settings
• Check Cursor's logs for any error messages