Calculator Mcp Server

A hardened math.js wrapper that gives Claude a single `calculate` tool for evaluation, symbolic simplification, and derivatives. Handles arithmetic, trig, matrices, unit conversion, and more with configurable precision and variable scoping. Built with sandbox isolation (disabled dangerous functions, vm context with timeout, input validation blocking semicolons and prototype pollution). Ships as both stdio and streamable HTTP with a public hosted instance at calculator.caseyjhand.com, so you can point Claude at it without installing anything. Reach for this when you need Claude to crunch numbers, simplify algebraic expressions, or compute symbolic derivatives without writing your own math service.