The Simplest way to build MCP Server in Nextjs (with Code)
Most tutorials on connecting Next.js to an MCP client will point you to the Vercel AI Adapter. There's a problem: that adapter was primarily designed for Server-Sent Events (SSE), not the modern Streamable HTTP POST requests recommended by the MCP team.
In this video, I provide a complete, from-scratch guide on how to build a robust MCP server directly within your Next.js application using a simple API route. We'll cover the fundamental concepts of MCP hosts, clients, and servers, and dive deep into the code to handle JSON-RPC 2.0 requests, authenticate users with API keys, and define your own custom tools.
This is the definitive guide to building flexible, scalable, and modern AI agents with Next.js.
✅ RESOURCES FROM THIS VIDEO:
Complete Resources here- https://www.grablink.xyz/l/UIKOdN
🕒 TIMESTAMPS:
0:00 - The Problem with Most MCP Tutorials
0:52 - MCP Host vs. Client vs. Server Explained
2:40 - The Simple Approach: Building an API Route in Next.js
5:22 - The Language of AI: JSON-RPC 2.0 Explained
7:27 - Choosing Your Transport: Streamable HTTP vs. SSE
9:20 - Deep Dive: Building the GET Handler for Tool Discovery
11:51 - Deep Dive: Building the POST Handler for Tool Calls
14:50 - How to Define and Call Custom Functions
18:23 - Authenticating Your MCP Requests with API Keys
🚀 BUILD YOUR OWN AI AGENT OR SAAS
Need help creating a custom AI agent or integrating these advanced concepts into your business? I offer professional development and consulting services.
➡️ Book a 30-minute strategy call with me: https://cal.com/prosamik/30min?overla...
#MCP #NextJS #AIAgent #Vercel #TypeScript #DeveloperTutorial #AI