FastMCP QuickCalc Server

🎉 LIVE DEPLOYMENT: https://web-production-de9a.up.railway.app/mcp/

A simple calculator MCP (Model Context Protocol) server built with FastMCP and deployed on Railway.

🚀 Live Demo

Your FastMCP server is live and running! You can use it directly in Claude Desktop.

Related MCP server: Calculator MCP Server

Features

• Add Function: Add two numbers together

• Subtract Function: Subtract second number from first number

• HTTP Transport: Uses streamable HTTP for easy deployment

• Cloud Deployed: Running 24/7 on Railway

• Production Ready: Configured for reliable operation

Quick Start with Claude Desktop

Add this to your claude_desktop_config.json:

{
  "mcpServers": {
    "quickcalc-mcp-server": {
      "url": "https://web-production-de9a.up.railway.app/mcp/"
    }
  }
}

Then restart Claude Desktop and you'll have access to add and subtract tools!

Local Development

Prerequisites

• Python 3.11+

• Virtual environment

Setup

1. Clone the repository:

git clone https://github.com/isaramadunika/fast-mcp.git
cd fast-mcp

2. Create and activate virtual environment:

python -m venv .venv
# Windows
.venv\Scripts\activate
# Linux/Mac
source .venv/bin/activate

3. Install dependencies:

pip install -r requirements.txt

4. Run the server:

python server.py

The server will start on http://0.0.0.0:9000/mcp/

Claude Desktop Configuration

Add this to your claude_desktop_config.json:

{
  "mcpServers": {
    "quickcalc-mcp-server": {
      "command": "path/to/your/.venv/Scripts/python.exe",
      "args": ["path/to/your/server.py"],
      "cwd": "path/to/your/project",
      "env": {
        "PYTHONPATH": "path/to/your/project"
      }
    }
  }
}

Deployment

Railway

1. Push to GitHub

2. Go to Railway

3. Connect GitHub account

4. Deploy from repository

5. Update Claude config with Railway URL + /mcp/

Render

1. Go to Render

2. Create new Web Service

3. Connect GitHub

4. Build Command: pip install -r requirements.txt

5. Start Command: python server.py

Available Tools

• add(a: int, b: int) -> int: Add two numbers

• subtract(a: int, b: int) -> int: Subtract second number from first

License

MIT License