Core concepts
Explore CloudSignal's core capabilities - authentication, access control, message delivery, offline support, pub/sub routing, and developer tools.
CloudSignal is a managed MQTT platform for building real-time applications. These pages explain what the platform provides, why each capability matters, and how they give you an edge over building messaging from scratch.
Authentication
Auth provider integration and token-based auth that fits your existing stack
Access lists
Dynamic topic permissions with identity variables and fine-grained control
QoS levels
Protocol-level delivery guarantees from fire-and-forget to exactly-once
Offline & Retain
Built-in offline queuing and message retention without extra infrastructure
Pub/Sub & Topics
Topic-based routing with wildcards, shared subscriptions, and ACL enforcement
Developer & AI ready
REST API, SDKs, and CLI - ready for your favorite coding agent
Real-time applications
Build chat applications, live dashboards, collaborative tools, and multiplayer experiences with CloudSignal's real-time messaging.
Authentication
How CloudSignal integrates with your existing auth provider - or uses token-based auth - so MQTT fits into your stack without a separate identity layer.