From Zero to MCP: Building Your Own Custom MCP Client & Server

Want to build an intelligent agent that calls tools using OpenAI and Model Context Protocol (MCP)? In this video, I walk you through building a simple MCP Server and Client — line-by-line — with a real-world example: a BMI calculator. You’ll learn: How to set up an MCP Server using FastMCP How to expose a BMI calculation tool to the client How to use OpenAI’s GPT to intelligently select and invoke tools How to run everything using standard I/O with stdio_client Best practices for tool prompting and LLM JSON responses This tutorial is perfect for developers working with AI agents, tool calling, and OpenAI's ecosystem. 🔗 Chapters 00:00 - 01:46 What is MCP? 01:47 - 07:26 Writing the BMI Server 07:27 - 24:05 Writing the MCP Client ✅ Subscribe for more videos on AI, LLM apps, and intelligent agents! #OpenAI #MCP #Python #AItools #BMICalculator #DeveloperTools #LLM #AIEngineering