Build a custom mcp server in 15 mins

Let's build an MCP STDIO server from scratch to understand how the the Model Context Protocol actually functions.

Part 1: Server - This video

Part 2: Client - Coming up!

Part 3: AI - Coming up!

Gist: https://gist.github.com/jherr/3535c82ef14db4120481951f71c8df89

Code: https://github.com/jherr/diy-mcp/tree/main/server

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👉 VS Code theme and font? Night Wolf [black] and BitstromWera Nerd Font Mono

👉 Terminal Theme and font? oh-my-posh with custom prompt and BitstromWera Nerd Font Mono

00:00 Introduction

05:52 What is STDIO?

06:59 STDIO in Node

08:02 DIY JSON-RPC

09:01 MCP Initialize

10:10 Adding Tools

13:29 Adding Resources

15:22 Adding Ping

15:52 Outroduction