EMQX
EMQX is a highly scalable and reliable MQTT platform designed to handle massive concurrent connections and real-time data streaming for IoT and AI applications.
Our verdict
Who it's for
Massive IoT connections & real-time data streaming
Who should look elsewhere
Custom pricing for BYOC and Enterprise plans requires direct contact, lacking transparency.
Pros
- +Combines real-time and durable messaging, reducing infrastructure complexity.
- +Achieves extremely high scalability and low latency for demanding applications.
- +Offers robust security features suitable for enterprise and regulated environments.
- +Provides extensive data integration capabilities with various cloud and enterprise systems.
- +Supports AI-driven workflows with native LLM integrations.
Cons
- −Custom pricing for BYOC and Enterprise plans requires direct contact, lacking transparency.
- −Self-managed Enterprise plan requires customers to handle monitoring and maintenance.
Key features
- ✓Real-time MQTT Pub/Sub
- ✓Durable Message Queue with persistent storage
- ✓Native integration with LLMs (OpenAI, Claude, Gemini) for AI processing
- ✓Built-in SQL-based rule engine for on-the-fly data transformation
- ✓50+ enterprise data integrations (Kafka, PostgreSQL, AWS S3, MongoDB, Oracle, SAP)
- ✓Horizontally scalable architecture supporting 200M+ concurrent connections
- ✓Enterprise security with TLS/mTLS, X.509, JWT, ACL/RBAC, and audit logs
- ✓Observability and control with per-topic and client metrics, and end-to-end tracing
Pricing
| Plan | Price | Billing | Notes |
|---|---|---|---|
| Serverless | $0 | month | Free quota every month. Pay-as-you-go beyond.; Up to 1000 connections; Free monthly quota on sessions, traffic, and rule actions |
| Dedicated Flex | $234 | month | Includes traffic allowance and 24/7 support.; Dedicated, isolated cluster; VPC Peering & Private Link |
| BYOC | — | month | Tailored to your security & compliance needs.; Deployed in your VPC; Custom data plane & control plane |
| Enterprise | — | month | High-performance MQTT with advanced security, governance, and data integration for regulated or air-gapped environments.; Annual subscription; Deploy anywhere (on-prem, edge, cloud) |