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.

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

Clone the repository:

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

Create and activate virtual environment:

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

Install dependencies:

pip install -r requirements.txt

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

Push to GitHub
Go to Railway
Connect GitHub account
Deploy from repository
Update Claude config with Railway URL + /mcp/

Render

Go to Render
Create new Web Service
Connect GitHub
Build Command: pip install -r requirements.txt
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

This server cannot be installed

security - not tested

license - not found

quality - not tested

How are these scores calculated?

A simple calculator MCP server that provides basic arithmetic functions (add and subtract) through HTTP transport, designed to be cloud-ready and easily deployable.

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