Cosmos-Server is a self-hosted server platform that combines an authentication gateway, a reverse proxy with dynamic rate limiting, and a Docker container orchestrator into a single management interface. It provides automatic HTTPS certificate management with wildcard support through DNS challenges, and secures self-hosted applications with token-based session management and plugin-based authentication middleware.
The platform distinguishes itself by integrating these capabilities into a unified system where the reverse proxy enforces authentication, rate limiting, and TLS termination before traffic reaches backend services. It includes a health-check and auto-recovery system that monitors service endpoints and automatically restarts failing containers, along with a dynamic rate-limiting engine that adjusts per-client limits in real time and applies exponential backoff or bans for abusive patterns.
Cosmos-Server handles the full lifecycle of TLS certificates via the ACME protocol, automates DNS record creation and deletion for domain validation, and manages Docker container deployment with networking, volume mounts, and restart policies. It also offers programmatic server management through SDKs in JavaScript, TypeScript, or Go, as well as a Terraform provider for infrastructure-as-code deployments.