Mcp Auth

What is Mcp Auth about?

Mcp Auth enables developers to spin up remote MCP servers that support standard OAuth 2.1 authentication and authorization flows. It is built for a hands‑on workshop where participants learn to secure MCP‑based services.

How to use Mcp Auth?

1. Clone the repository with a shallow copy:

   git clone --depth 1 https://github.com/epicweb-dev/mcp-auth.git
   cd mcp-auth
   

2. Install dependencies and set up the monorepo:

   npm run setup
   

3. Follow the workshop guide (linked in the README) to run the example app and interact with the authentication server.

Key features of Mcp Auth

• Full OAuth 2.1 / OpenID Connect implementation for MCP servers.
• TypeScript‑based codebase with strong Node.js ecosystem support.
• Integrated CI status badge and GPL‑3.0 licensing.
• Comprehensive pre‑workshop resources covering MCP concepts, debugging, and OAuth fundamentals.
• Large monorepo architecture (multiple apps) ready for extension.

Use cases of Mcp Auth

• Teaching and learning secure MCP server development.
• Prototyping authentication layers for AI‑driven applications built on the Model Context Protocol.
• Demonstrating best practices for OAuth integration in a Node.js environment.
• Serving as a reference implementation for custom MCP auth services.

FAQ from the Mcp Auth

Q: What Node.js version is required? A: Node.js v24 or newer.

Q: How large is the repository and does it affect setup time? A: The repo is large; a strong internet connection is recommended. The shallow clone (--depth 1) reduces initial download size.

Q: What should I do if npm run setup fails? A: Open an issue on the GitHub repo with detailed error information.

Q: Are there any licensing restrictions? A: The project is licensed under GPL 3.0.

Q: Where can I find additional learning material? A: Refer to the "Pre‑workshop Resources" section in the README for articles, videos, and talks.

Prerequisites

• JavaScript/TypeScript experience
• Node.js experience
• Advanced MCP Features or equivalent experience.

Pre-workshop Resources

Here are some resources you can read before taking the workshop to get you up to speed on some of the tools and concepts we'll be covering:

• Letting AI Interface with Your App with MCPs
• MCP Introduction
• Your AI Assistant Instructor: The EpicShop MCP Server
• How to Debug Your MCP Server
• OAuth 2.0 and OpenID Connect (in plain English) - (1 hour video, but it's really great!)

System Requirements

• git v2.18 or greater
• NodeJS v24 or greater
• npm v8 or greater

All of these must be available in your PATH. To verify things are set up properly, you can run this:

git --version
node --version
npm --version

If you have trouble with any of these, learn more about the PATH environment variable and how to fix it here for windows or mac/linux.

Setup

This is a pretty large project (it's actually many apps in one) so it can take several minutes to get everything set up the first time. Please have a strong network connection before running the setup and grab a snack.

Warning: This repo is very large. Make sure you have a good internet connection before you start the setup process. The instructions below use --depth to limit the amount you download, but if you have a slow connection, or you pay for bandwidth, you may want to find a place with a better connection.

Follow these steps to get this set up:

git clone --depth 1 https://github.com/epicweb-dev/mcp-auth.git
cd mcp-auth
npm run setup

If you experience errors here, please open an issue with as many details as you can offer.

The Workshop App

Learn all about the workshop app on the Epic Web Getting Started Guide.