Master MCP Proxy

Master MCP Server is a production-ready OAuth-enabled proxy that aggregates multiple MCP backends into a unified interface with advanced routing, load balancing, and authentication capabilities. Built with TypeScript for both Node.js and Cloudflare Workers runtimes, it features circuit breakers, retry policies, health-based load balancing, delegated OAuth flows for GitHub/Google integration, encrypted token storage, and comprehensive monitoring with metrics collection. The implementation supports multi-server deployments with Docker/Koyeb configurations, provides a complete OAuth web interface for authorization flows, and includes security hardening with audit logging and input validation, making it ideal for enterprise environments that need to expose multiple MCP services through a single authenticated gateway with high availability and resilience.