The MCP Calculator server exposes mathematical computation tools that language models can invoke through the Model Context Protocol, enabling AI systems to perform calculations and interact with external systems. It provides a sample implementation framework with a communication pipe that handles WebSocket connections and process management, supporting multiple transport types (stdio, SSE, HTTP) and featuring automatic reconnection with exponential backoff. The server solves the problem of extending AI capabilities by allowing language models to reliably execute computations and other tools through a standardized, bidirectional communication protocol.
claude mcp add --transport stdio 78-mcp-calculator uvx mcp-calculator