MCP Protocol Practice: Understanding LLM Tool Calling Architecture with Google Calendar

Introduction / Main Floor: MCP Protocol Practice: Understanding LLM Tool Calling Architecture with Google Calendar

This article delves into how the Model Context Protocol (MCP) enables large language models (LLMs) to call external APIs safely and in a structured manner by analyzing a minimal MCP server implementation, and uses Google Calendar integration as an example to demonstrate the complete workflow of tool discovery, OAuth authorization, and execution.