Mar 28
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In this video, we build a Model Context Protocol (MCP) Server from scratch using Node.js and understand how MCP enables AI applications like Cursor to interact with tools, resources, and prompts. We start with the problem without MCP, then cover the core concepts of MCP, including tools, resources, prompts, JSON-RPC communication, and transport protocols. Finally, we build a fully working MCP server, integrate it with Cursor, and make it production-ready with schema validation using Zod. This tutorial is perfect for developers who want to understand how AI tools communicate with external systems using MCP and how to build their own MCP server. 🔗 Source Code: https://github.com/AadarshThakur03/MCP-Server 🚀 In this tutorial you will learn: • What is MCP (Model Context Protocol) • Why MCP is important for AI applications • MCP architecture and terminologies • Tools, Resources and Prompts in MCP • JSON-RPC communication protocol • MCP transport protocols (HTTP, Stdio, Streamable HTTP) • Complete MCP execution flow • Building an MCP server in Node.js • Integrating MCP with Cursor • Production-ready tools with schema validation • Calling APIs inside MCP tools If you are building AI tools, developer assistants, or custom integrations, understanding MCP is extremely valuable. Timestamps 00:00 Introduction 00:40 Problem Without MCP 00:56 What We Will Build Today (Working MCP Server) 04:52 Theory Concepts 05:32 Why Do We Need MCP 05:56 What is MCP 07:00 Common Terminologies 09:09 Tools in MCP 10:17 What Are Resources 10:58 What Are Prompts 12:05 JSON RPC Communication Protocol 13:11 Transport Protocol (HTTP, STDIO, Streamable HTTP) 15:40 Full MCP Execution Flow 17:04 Setup Node.js Project 19:09 Communication Between Client and MCP Server 20:26 MCP Inspector Overview 22:06 MCP Server Folder Structure 29:24 Register Tool in MCP 33:14 Integrating MCP Server in Cursor 34:54 Different Ways to Add Logic in Tools 37:04 Fix Errors 39:20 Make Tools Production Ready 40:30 Schema Validation using Zod 44:12 Calling APIs inside MCP Tools 45:47 Testing Tools in Cursor 48:01 Creating Resources in MCP 52:45 Creating Prompts in MCP 54:27 Testing MCP Server 👍 Like the video if it helps and subscribe for more AI + Developer tutorials. #MCP #ModelContextProtocol #NodeJS #CursorAI #AITools #AIEngineering #JavaScript #AIIntegration