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MCP Server Explained | Model Context Protocol for AI Agents | FDE Full Course #14

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21.0K views2 Oct 2026

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FDE Full Course #14 What exactly is MCP, and why does everyone building AI applications suddenly care about it? In this video, we understand MCP (Model Context Protocol) from first principles and see how it solves the problem of connecting AI applications with external tools, data, and services through a standard protocol. We start from something we already know — Tool Calling — and gradually understand why MCP becomes useful when the same capabilities need to be shared across multiple AI applications. In this video, we cover: • Why MCP was needed • MCP vs Tool Calling • MCP Host, Client, and Server architecture • What an MCP Server actually does • Tools, Resources, and Prompts • How Tool Discovery works • tools/list and tools/call • How tool schemas connect with Structured Output • MCP vs REST APIs • How MCP works with existing APIs, databases, and RAG systems • Building a simple Task MCP Server • Connecting an AI application to an MCP Server • How the LLM discovers and invokes MCP tools By the end, you should clearly understand this flow: AI Application → MCP Client → MCP Server → External Capability And more importantly, how Tool Calling and MCP work together rather than replacing each other. This video is part of the Forward Deployed Engineer (FDE) / GenAI Engineering Series, where we are learning how modern AI applications are actually built beyond basic LLM API calls. #MCP #ModelContextProtocol #GenAI #AIEngineering #AIAgents #SpringAI #LLM #ToolCalling #RAG #FDE ------------------------------------------------------------------------------------------------------------- Code and Notes: Github : https://github.com/adityatandon15/Forward-Deployed-Engineer-Full-Course Spring Boot Full Course : https://youtube.com/playlist?list=PLEYgx5hMdopw&si=o1Njda0XgYXwg4xs JAVA Full Course Series : https://youtube.com/playlist?list=PLQEaRBV9gAFsR15tNo2QLF9d2qc-c018p&si=4qQP_euMTZMvAwNu Join our WhatsApp Group: https://www.whatsapp.com/channel/0029VbBF1XKF1YlMyYuPM23s We have paid courses on DSA, Web Development , Blockchain, System Design & GenAI. Join Courses: https://strikes.in/ Coder Army Website: https://coderarmy.in/#home Coder Army App: https://play.google.com/store/apps/details?id=com.rohit.negi Connect with Aditya Tandon Instagram : https://www.instagram.com/itsadityatandon LinkedIn : https://www.linkedin.com/in/adityatandon2 Twitter : https://x.com/adityatandon02 Timestamps:

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