pwh-pwh/cal-mcp

Overview

An MCP server that evaluates mathematical expressions. It provides a tool for AI agents to perform arithmetic calculations via the Model Context Protocol. Built in TypeScript with 13 stars on GitHub.

Best for

Best for
Developers needing a minimal math evaluation tool for MCP-based AI agents

Use cases

• Integrate math evaluation into LLM-based agents or chatbots
• Enable AI workflows to compute expressions on the fly
• Add a simple calculator capability to MCP-compatible tools

How to use

Install

npx -y @smithery/cli install @pwh-pwh/cal-mcp --client claude

Tools exposed

• bun

Tested with

Claude Desktop

Example client config

"cal-mcp": {\n      "name": "计算",\n      "description": "",\n      "isActive": true,\n      "command": "bunx",\n      "args": [\n        "cal-mcp"\n      ]\n    }

Notes

An MCP server that evaluates mathematical expressions. It provides a tool for AI agents to perform arithmetic calculations via the Model Context Protocol. Built in TypeScript with 13 stars on GitHub.

13 stars on GitHub. Last updated 2026-03-30. Licensed MIT.

Use cases

• Integrate math evaluation into LLM-based agents or chatbots
• Enable AI workflows to compute expressions on the fly
• Add a simple calculator capability to MCP-compatible tools

Pros

• Lightweight and focused on a single task
• Written in TypeScript for type safety
• Open source with permissive license

Cons

• Limited to basic math expression evaluation
• Small community and minimal documentation
• No advanced features like graphing or symbolic math

Indexed from awesome-mcp-servers-punkpeye and enriched against its public facts.