sci-calc-mcp
sci_calc_mcp is a lightweight, high-performance Model Context Protocol (MCP) server that exposes scientific calculator operations as atomic tools.
README
📘 sci_calc_mcp
A Scientific Calculator MCP Server
Built with FastMCP, designed for ChatGPT Apps, MCP Inspector, and Render deployment.
🚀 Overview
sci_calc_mcp is a lightweight, high-performance Model Context Protocol (MCP) server that exposes scientific calculator operations as atomic tools.
Each operation is a standalone MCP tool:
add(a, b)subtract(a, b)multiply(a, b)divide(a, b)mod(a, b)power(base, exponent)sqrt(x)sin(x)cos(x)tan(x)asin(x)acos(x)atan(x)exp(x)ln(x)log10(x)absval(x)round_to(x, digits)
This design is MCP-native, strongly typed, easy to inspect, and ideal for building calculator UIs.
✨ Features
- 🧮 Multiple scientific-level operations
- ⚡ Pure FastMCP server — minimal dependencies
- 🌐 HTTP/SSE transport for web apps and inspectors
- 📦 Single-file server (
main.py) - 🔍 Compatible with MCP Inspector
- 🤖 Fully compatible with ChatGPT Apps SDK
- ☁️ Pre-configured for Render.com hosting
- 🔒 Safe mathematical operations (e.g., division by zero protection)
ChatGPT App
The server is currently live and hosted on Render. I have connected it as a custom tool in ChatGPT's new App Developer mode and will submit it as soon as the planned app store comes online.
<img width="882" height="1118" alt="Screenshot from 2025-11-14 10-15-14" src="https://github.com/user-attachments/assets/9d354e4d-9173-4069-ba18-098717823c2f" />
📄 License
This project is licensed under the MIT License - see the LICENSE file for details.
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