📘 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 (
🔍 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.