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sadjad-chrono

MCP Learning

by sadjad-chrono
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MCP Learning

A Model Context Protocol (MCP) server that provides arithmetic tools for AI assistants like Claude.

Features

  • Add Tool: Add two numbers together with structured input/output

Installation

Prerequisites

  • Node.js 18 or higher

  • npm, yarn, or pnpm

From Git Repository

# Clone the repository git clone https://github.com/sadjad-chrono/mcp-learning.git cd mcp-learning # Install dependencies pnpm install # or npm install # Build the project pnpm build # or npm run build

Usage with Claude Desktop

To use this MCP server with Claude Desktop, you need to add it to your Claude configuration file.

Configuration Steps

  1. Locate your Claude Desktop config file:

    • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

    • Windows: %APPDATA%\Claude\claude_desktop_config.json

    • Linux: ~/.config/Claude/claude_desktop_config.json

  2. Add the server configuration:

Option 1: Using npx (recommended after publishing to npm)

{ "mcpServers": { "mcp-learning": { "command": "npx", "args": [ "-y", "@sadjadteh-chrono/mcp-learning" ] } } }

Option 2: Using the built package from cloned repo

After building the project, add this to your claude_desktop_config.json:

{ "mcpServers": { "mcp-learning": { "command": "node", "args": [ "/absolute/path/to/mcp-learning/dist/mcpserver/index.js" ] } } }

Option 3: Development mode with tsx

{ "mcpServers": { "mcp-learning": { "command": "npx", "args": [ "-y", "tsx", "/absolute/path/to/mcp-learning/src/mcpserver/index.ts" ] } } }

  1. Restart Claude Desktop to load the new configuration.

Verifying the Installation

Once configured and Claude Desktop is restarted:

  1. Open a new conversation in Claude

  2. Look for the 🔌 icon or hammer icon indicating MCP tools are available

  3. Try using the add tool by asking Claude to "add 5 and 3"

Development

Project Structure

mcp-learning/ ├── src/ │ └── mcpserver/ │ └── index.ts # Main MCP server implementation ├── dist/ # Compiled JavaScript (generated) ├── package.json ├── tsconfig.json └── README.md

Available Scripts

# Build the project pnpm build # Run in development mode pnpm dev # Run in development mode with auto-reload pnpm dev:watch # Run with debugger pnpm debug # Clean build artifacts pnpm clean

Testing with MCP Inspector

You can test the server using the MCP Inspector:

npx @modelcontextprotocol/inspector tsx src/mcpserver/index.ts

This will open a web interface where you can interact with your MCP server and test tools.

Adding New Tools

To add new tools to your MCP server, edit src/mcpserver/index.ts:

server.registerTool( "tool-name", { title: "Tool Title", description: "What the tool does", inputSchema: { param1: z.string().describe("Description of param1"), // Add more parameters }, outputSchema: { result: z.string() }, }, async ({ param1 }) => { // Tool implementation return { content: [{ type: "text", text: "result" }], structuredContent: { result: "result" }, }; } );

Publishing to Git

# Initialize git repository (if not already done) git init # Add all files git add . # Create initial commit git commit -m "Initial commit: MCP learning server" # Add remote repository git remote add origin https://github.com/sadjad-chrono/mcp-learning.git # Push to GitHub git push -u origin main

Publishing to npm

Prerequisites

  1. Create an npm account at https://www.npmjs.com/signup

  2. Login to npm: npm login

Publish Steps

# Build the package pnpm build # Publish to npm (scoped packages are public by default for free accounts) npm publish --access public

Note: The --access public flag is required for scoped packages on free npm accounts.

Then users can install with:

npm install -g @sadjadteh-chrono/mcp-learning # or use with npx npx @sadjadteh-chrono/mcp-learning

License

MIT

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Install Server
A
security – no known vulnerabilities
A
license - permissive license
A
quality - confirmed to work

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