MCP Client OAuth Is Simpler Than You Think

Learn how OAuth 2.1 authentication works for MCP (Model Context Protocol) client applications through this comprehensive 19-minute tutorial. Explore the authentication process step-by-step with practical demonstrations using Claude Code, MCP CLI, and a specialized OAuth client library. Discover security best practices and proper coding techniques while examining real-world implementations with the Notion MCP server as a primary example. Follow along as the tutorial covers MCP protocol fundamentals, demonstrates the chuk-mcp-client-oauth library, and walks through code samples showing how authentication keys are passed and stored securely. Gain hands-on experience with key storage mechanisms, tool listing procedures, and service discovery processes, with access to accompanying GitHub repositories containing demo code and the OAuth client library for further exploration and implementation.