Calculator Mcp Server
Give your coding agent a safe symbolic math surface to evaluate, simplify, and differentiate expressions while implementing formulas or checks.
Overview
Calculator MCP Server is a MCP server for the Build phase that evaluates, simplifies, and differentiates math expressions for coding agents under configurable size and timeout limits.
What is this MCP server?
- Evaluate, simplify, and differentiate mathematical expressions via MCP tools
- Hosted streamable-http remote at calculator.caseyjhand.com/mcp plus local stdio
- Guardrails: CALC_MAX_EXPRESSION_LENGTH (default 1000) and CALC_EVALUATION_TIMEOUT_MS (default 5000)
- CALC_MAX_RESULT_LENGTH caps oversized result strings (default 100000 characters)
- @cyanheads/calculator-mcp-server v0.3.2 with Bun stdio runtime hint
- Version 0.3.2
- Default CALC_MAX_EXPRESSION_LENGTH 1000
- Default CALC_EVALUATION_TIMEOUT_MS 5000
Community signal: 1 GitHub stars.
What problem does it solve?
Agents routinely botch symbolic math and long arithmetic chains, which breaks generated business logic and tests.
Who is it for?
Indie devs building agents that need quick symbolic math during feature work, codegen, or automated checks.
Skip if: Teams that need CAS notebooks, plotting, or statistical modeling over large datasets.
What do I get? / Deliverables
Your agent calls bounded calculator tools so formulas, derivatives, and simplifications come back as structured results instead of guessed LaTeX.
- MCP tools for evaluate, simplify, and differentiate workflows
- Bounded evaluation results within configured length and time limits
Recommended MCP Servers
Journey fit
Symbolic and numeric math helpers attach to the agent toolchain during implementation and debugging, not to distribution or production monitoring. Calculator MCP is agent-tooling: it extends what the model can compute without dropping to unbounded eval() in generated code.
How it compares
Focused math MCP server, not a full Wolfram-style workspace or spreadsheet integration.
Common Questions / FAQ
Who is Calculator MCP Server for?
It is for solo builders and agent users who want reliable evaluate, simplify, and differentiate operations inside Claude Code, Cursor, or similar MCP clients.
When should I use Calculator MCP Server?
Use it while building or refactoring code that depends on explicit formulas, derivatives, or algebraic simplification the model should not do by hand.
How do I add Calculator MCP Server to my agent?
Add the stdio command for @cyanheads/calculator-mcp-server (Bun run start:stdio) to your MCP config, or register the remote URL https://calculator.caseyjhand.com/mcp for streamable-http.