Real-Time Pub/Sub
Made Simple
Managed MQTT with built-in auth, presence detection, and visual ACL editor. Connect in minutes with any MQTT client.
Sub-100ms Latency
Messages delivered in milliseconds, not seconds. Purpose-built infrastructure for real-time applications.
Enterprise Security
TLS encryption, topic-level ACLs, and OAuth2/JWT authentication. Bank-level security for your data.
Global Edge Network
Connect from anywhere with automatic routing to the nearest edge node. Low latency worldwide.
99.99% Uptime SLA
Clustered architecture with automatic failover. Your messages are delivered, guaranteed.
QoS 0, 1 & 2
Choose fire-and-forget, at-least-once, or exactly-once delivery based on your requirements.
Retained Messages
New subscribers instantly receive the latest state. Perfect for status updates and configuration.
Why CloudSignal Over Alternatives?
More than just MQTT hosting—a complete real-time platform with features you won't find elsewhere.
The Problem with Alternatives
The CloudSignal Advantage
Built-in Supabase auth, JWT validation, and token-based WebSocket connections
Know who's online in real-time. Track user/device status without custom infrastructure
Configure topic permissions in a dashboard, not YAML files. Role-based access out of the box
Visual workflow designer for programmable message routing—no code required
How It Fits Your Stack
CloudSignal sits between your clients and backend, handling all real-time complexity.
Two Ways to Connect
Use our SDK for seamless auth integration, or connect with any standard MQTT client.
- Fetches tokens from your backend automatically
- Auto-refresh before token expiry
- Reconnection handling built-in
- TypeScript types included
- Use paho-mqtt, mqtt.js, or any client
- Standard MQTT 3.1.1 & 5.0 protocol
- You handle token fetch & refresh
import { CloudSignal } from '@cloudsignal/sdk'
// SDK fetches token from your backend automatically
const cs = new CloudSignal({
tokenEndpoint: '/api/cloudsignal/token', // Your backend endpoint
})
await cs.connect() // Token fetch + MQTT connect in one call
// Subscribe and publish with type safety
cs.subscribe('sensors/+/temperature', (msg) => {
console.log(msg.topic, msg.payload)
})
cs.publish('devices/sensor-1/status', {
online: true,
battery: 85
})
// Token auto-refreshes before expiryWhat You Can Build
From chat apps to industrial IoT—MQTT handles it all
Real-Time Chat & Collaboration
Build chat apps, collaborative tools, and live commenting systems with instant message delivery and presence detection.
Multiplayer Gaming
Sync game state, player actions, and leaderboards in real-time across thousands of concurrent players.
IoT Device Management
Monitor and control industrial sensors, smart home devices, and edge computing nodes at scale.
Live Dashboards
Stream real-time metrics, analytics, and notifications to web and mobile dashboards instantly.
AI Agent Coordination
Enable autonomous agents to communicate, share context, and coordinate actions in multi-agent systems.
Financial & Trading Apps
Stream live market data, trade notifications, and portfolio updates with guaranteed delivery.
Understanding QoS Levels
Choose the right delivery guarantee for your use case
Best effort delivery. No acknowledgment. Fastest, minimal overhead.
Message stored and retransmitted until acknowledged. May deliver duplicates.
Four-step handshake ensures single delivery. Highest reliability, more overhead.
CloudSignal Studio
Visual workflow designer for programmable message routing. Build complex event-driven logic without writing code—transform, filter, route, and integrate with external services.
- Drag-and-drop workflow builder
- Conditional routing based on message content
- Transform payloads with visual processors
- Webhook integrations to your backend
Real-Time Presence API
Know who's online without building custom infrastructure. Track user and device connection status in real-time with automatic heartbeats and disconnect detection.
- Instant online/offline status updates
- Subscribe to presence changes for any topic
- Get list of connected clients per topic
- Automatic cleanup on disconnect
Technical Specifications
Ready to Get Started?
Start with our free tier. Connect up to 100 devices with no credit card required.