XMCP + AuthKit: The Fastest Way to Secure MCP Tools and Servers
Blog post from WorkOS
The Model Context Protocol (MCP) revolutionizes AI tool integration by enabling tools to be self-describing and callable by Large Language Models (LLMs) through a standardized protocol. XMCP is a project designed to facilitate the creation of MCP servers, offering a developer experience akin to modern frameworks like Remix or Next.js, while emphasizing the importance of security with the integration of AuthKit for OAuth-based authentication. This ensures that AI tools, especially those handling sensitive data, can be securely accessed and used within multi-tenant platforms or internal environments. The June 2025 MCP specification mandates that MCP servers function as OAuth Resource Servers, and XMCP supports this requirement by simplifying the setup of secure, globally deployable MCP servers. The combination of XMCP and AuthKit allows developers to build secure, production-ready AI tool infrastructures with minimal complexity, supporting identity management, team-aware permissions, and SSO integration. As the AI ecosystem continues to evolve, this duo provides a robust foundation for integrating AI agents into critical workflows with enterprise-grade security features.