Calc Mcp

Overview

Calc Mcp is a Model Context Protocol server that provides 21 tools for mathematical operations, random number generation, date manipulation, encoding, hashing, and more. These tools are deterministic and accurate, allowing AI assistants to perform calculations and data transformations as callable functions rather than relying on manual processes.

The server runs locally on your machine via the npm package @coo-quack/calc-mcp, which communicates with MCP clients over stdio. No authentication or credentials are required to use it. Version v2.1.0 is available under the MIT license, with the source code hosted at coo-quack/calc-mcp on GitHub.

Calc Mcp is listed in the Development category on mcp.site and works with all major MCP clients including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, and Zed. If you maintain this project, you can claim this listing to verify ownership and keep information up to date.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "calc_mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@coo-quack/calc-mcp"
      ]
    }
  }
}