Real-Time Messaging for Multi-Agent Systems
Enable your AI agents to coordinate, share state, and respond to events in real-time. MQTT pub/sub is the missing piece for autonomous agent architectures.
Your Agents
Subscribers
Your Agents
Subscribers
Why MQTT for AI Agents?
HTTP and webhooks weren't designed for agent-to-agent communication. MQTT was built for exactly this.
Sub-100ms Latency
Real-time coordination requires real-time messaging. CloudSignal delivers messages faster than HTTP can even establish a connection.
Pub/Sub Architecture
Agents subscribe to topics they care about. No polling, no webhooks, no complex routing logic. New agents join instantly.
Secure Isolation
Topic-level ACLs ensure agents only access what they should. Audit logs track every message for compliance.
Retained State
New agents instantly receive the latest state when they subscribe. No bootstrap delay, no missed updates.
QoS Guarantees
Choose fire-and-forget (QoS 0), at-least-once (QoS 1), or exactly-once (QoS 2) delivery based on your needs.
Scalable by Design
Add more agents without changing your architecture. CloudSignal scales horizontally to handle millions of connections.
CloudSignal vs Webhooks
Why real-time pub/sub beats request-response for agent coordination
- High latency — 100-500ms per hop
- Complex routing — Each agent needs its own endpoint
- No fan-out — Must call each recipient individually
- Retry hell — Handle failures, deduplication, ordering
- Firewall issues — Agents need public URLs or tunnels
- No state — New agents miss previous messages
- Sub-100ms — Persistent connections, instant delivery
- Topic-based routing — Subscribe to patterns, not endpoints
- Native fan-out — One publish reaches all subscribers
- QoS built-in — At-least-once or exactly-once delivery
- Outbound only — Agents connect out, no inbound ports
- Retained messages — New agents get latest state instantly
Common Patterns
How teams are using CloudSignal to power their agent systems
Multi-Agent Orchestration
Coordinate complex workflows across multiple AI agents. A supervisor agent publishes tasks, worker agents subscribe and report results.
Real-Time State Sync
Keep all agents aware of shared state changes instantly. When one agent updates context, all others receive it immediately.
Human-in-the-Loop
Route agent outputs to human reviewers and receive approvals in real-time. Perfect for sensitive operations.
Event-Driven Triggers
Agents react to external events instantly. Subscribe to webhooks, IoT sensors, or other systems and process in real-time.
Simple Integration
Connect your agents in minutes with any MQTT client library. Works with LangChain, CrewAI, AutoGen, Agno, and custom frameworks.
- Use any MQTT library (paho-mqtt, mqtt.js, etc.)
- Standard protocol - no vendor lock-in
- REST API bridge for serverless functions
- WebSocket support for browser-based agents
from langchain.agents import AgentExecutor
import paho.mqtt.client as mqtt
import json, os
# Connect to CloudSignal
client = mqtt.Client()
client.username_pw_set("agent@org_id", os.environ["CLOUDSIGNAL_TOKEN"])
client.tls_set() # Enable TLS
client.connect("connect.cloudsignal.app", 8883)
def on_task(client, userdata, msg):
task = json.loads(msg.payload)
# Run your LangChain agent
result = agent_executor.invoke({"input": task["prompt"]})
# Publish result back
client.publish(f"tasks/{task['id']}/result", json.dumps(result))
client.subscribe("tasks/new")
client.on_message = on_task
client.loop_forever()Works with Your Stack
CloudSignal is framework-agnostic. Use it with any AI agent framework.
Ready to Connect Your Agents?
Start with our free tier. No credit card required. Your agents will be communicating in minutes.