MCP Auth Demo: Securing AI Tool Access with OAuth 2.1

MCP Auth Demo: Securing AI Tool Access with OAuth 2.1

This demo showcases how to secure Model Context Protocol (MCP) servers using OAuth 2.0, enabling AI assistants to safely and responsibly access external tools and data.

The session features a Python-based FastMCP server with authenticated tools, along with two Node.js–based OAuth authorization servers demonstrating:

• Dynamic Client Registration (RFC 7591)
• Client ID Metadata Document (CIMD)–based registration

The demo walks through the complete Authorization Code flow with PKCE, including JWT validation using OIDC discovery and JWKS.

Key takeaways include how to apply OAuth 2.0 to MCP, compare DCR and CIMD approaches, and implement production-grade authentication patterns for AI integrations.

Improving is providing pizza at 6:00 and the presentation will begin at 6:30.

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Speaker Bio

Gautam Goudar is a Software Engineer with over 15 years of experience modernizing enterprise systems and building scalable software platforms. Over the past 2.5 years, he has focused on AI-driven solutions using Large Language Models, with an emphasis on Python and functional programming. He specializes in designing, modernizing, and scaling complex systems across diverse domains. Outside of technology, Gautam is a competitive Men’s Physique athlete and has competed in OCB events from 2023 to 2025. He holds a Master’s degree in Computer Science from the University of Oklahoma.