MCP server · Research
mathlas MCP server
by Archerkattri
Lets your AI look up real math theorems, identify number patterns, and check math claims without making things up.
mathlas is a helper for your AI that deals with math. It lets your AI search a huge library of real theorems, figure out what a strange number or number pattern is, and check whether a math claim is actually correct. It is handy if you use Claude Code or Cursor and want fewer made-up answers when math comes up.
What is an MCP server? The 30-second version
On its own, your AI can only chat with you using what it already knows. An MCP server is a small helper program that gives your AI a new skill or a connection to a service. This one connects your AI to mathlas, a set of math tools. Once connected, your AI can ask mathlas to search for theorems, identify numbers, or check a proof, and then explain the results back to you.
What this MCP server does
You ask your AI a math question, like whether a certain equation has a solution. Your AI sends the question to mathlas, which searches its big index of math documents or runs a numeric check. mathlas sends back real results, such as theorem names, matching number patterns, or a clear yes or no from a proof checker. Your AI then reads those results and gives you an answer. Nothing is guessed inside mathlas; it only returns data it actually found or computed.
Click to zoomWhat you can do with it
- Search for a real math theorem by describing it in plain words
- Identify a number or constant you are curious about
- Look up a number sequence to see if it is a known one
- Check whether a numeric claim is correct to many decimal places
- Get the formal name of a math result used in proof software
- See a checklist of what must be true before a theorem can be used
- Test a math idea by running it in a safe sandbox
Try asking your AI
- “Does the equation x = cos(x) have a unique solution I can find by repeating the calculation?”
- “What is the number 3.14159265358979323846? Can you identify it?”
- “Is 1, 1, 2, 3, 5, 8, 13 a known sequence?”
- “Check if this claim is true: the sum of the first n odd numbers equals n squared.”
What it gives back to you
You get back clear answers in the chat. For a theorem search, your AI shows you the theorem name and its statement. For a number or sequence, you see the best match and how confident it is. For a check, you get a simple correct or not correct, sometimes with the exact number it computed.
Before you start
What you need
- The uv tool installed on your computer (the README shows a one-line install)
- Claude Code, Cursor, or another app that can use MCP servers
- Optional: a local copy of the OEIS sequence list for sequence lookups
- Optional: a Lean proof toolchain for formal math checks
Good to know
The sequence lookup and formal proof check need extra data or tools installed locally; without them they will honestly say they cannot help rather than guess.
Install it with your AI
Add mathlas 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 mathlas 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
Anyone who uses an AI assistant for math homework, research, or technical work and wants fewer wrong answers.
