MCP server · Analytics
Polymath MegaBlaster MCP server
Give your AI a local calculator for exact math, dates, units, stats, and distances.
This is a small helper program that runs on your own computer and gives your AI a set of 15 built-in calculators. It is handy if you use a local or smaller AI model that tends to get math, dates, or unit conversions wrong. Everything happens on your machine, with no internet calls and no accounts.
What is an MCP server? The 30-second version
On its own, your AI can only chat with you. An MCP server is a small helper program that gives your AI a new skill or a connection to something. This one is a local toolbox of calculators, so when you ask a math or date question, the AI hands the numbers to this helper instead of guessing. The helper does the exact calculation and hands the answer back.
What this MCP server does
You ask your AI a question that involves numbers, dates, units, or distances. The AI notices it needs an exact answer and sends the details to this helper running on your computer. The helper does the calculation using careful, exact methods, not rough estimates. Then it sends the result back, and the AI shows it to you in the chat. Nothing leaves your machine, and there are no keys or accounts to set up.
Click to zoomWhat you can do with it
- Do exact math on very large numbers without rounding errors
- Add or subtract dates and handle leap years and month ends correctly
- Convert between units like km and miles, Celsius and Fahrenheit, kg and pounds
- Work out statistics like mean, median, and standard deviation from a list of numbers
- Convert numbers between decimal, hex, binary, and octal
- Calculate subnet details from a network address
- Measure the distance between two map coordinates
Try asking your AI
- “What is 2 to the power of 200, exactly?”
- “How many days are there between 15 March 2024 and 1 January 2025?”
- “Convert 72 kilograms to pounds.”
- “What is the distance in kilometres between these two coordinates: 51.5074, -0.1278 and 48.8566, 2.3522?”
What it gives back to you
You get a short, clear answer in the chat: a number, a converted value, a date, a list of statistics, or a distance. For example, you might see the exact result of a big multiplication, or a count of days between two dates. The helper does not write long reports; it just gives the AI the precise value it needs, and the AI explains it to you.
Before you start
What you need
- Node.js version 18 or newer installed on your computer
- A copy of the project files on your computer (the setup steps show how to get them)
- An MCP client app that can run local servers, like Claude Desktop, Cursor, or Claude Code
Good to know
This tool only calculates; it does not change anything on your computer or online, so it is safe to use freely.
Install it with your AI
Add Polymath MegaBlaster MCP server to your AI, no technical skills needed
You don't install anything by hand. You copy one prompt, paste it into an AI that can work on your computer, and it checks, installs and connects the server for you, asking you when it needs something.
Sign in to get the install prompt
Members get a ready-made prompt that lets the Claude desktop app check Polymath MegaBlaster MCP server, install it and connect it for them, step by step. You don't need any technical skills: you copy, paste and answer a few questions. Your connected AI can also find and install any of the 4,066 MCP servers here for you.
Who it's for
People who use local or smaller AI models for work that involves numbers, dates, units, or networking, and want exact answers instead of guesses.
