Chariot MQTT Server
Chariot The Sparkplug-compliant MQTT broker
Chariot® is the industrial-grade MQTT server built by the inventors of MQTT and Sparkplug. Designed specifically for OT applications, Chariot delivers the reliable, secure, and scalable messaging infrastructure needed to power mission-critical systems and modern digital transformation initiatives.
Chariot gives customers more flexibility in how they deploy, manage and expand it over time. Chariot can be deployed in a container, or on your own VM or server, or as a service in AWS or Azure.
With support for containerized deployments and expanded functionality, Chariot seamlessly integrates into modern deployment strategies delivering the mission-critical reliability MQTT server experience customers already know.
From oil & gas to manufacturing to energy, leading industrial organizations use Chariot to move data across their enterprise, bridging the gap between OT and IT with ease.
Key features
Built for OT + SCADA
- Run as a standalone broker or as a scalable replacement for the MQTT Distributor module in larger Ignition-based deployments
- Seamlessly integrates into Unified Namespace (UNS) architectures
- Enables real-time messaging across plants, clouds, and business systems
Secure & scalable
- TLS encryption with username/password authentication
- LDAP support for user and client authentication
- Access Control Lists (ACLs) for fine-grained topic-level access
- Multiple client support for unlimited Edge Nodes and applications
Web-based admin & monitoring
- Modern UI for managing users, roles, and client activity
- Monitor live MQTT traffic and Sparkplug-specific metrics
- Visual tools for understanding topic structure, edge node behavior, and connection status
Advanced Sparkplug awareness
Chariot provides powerful Sparkplug-specific monitoring features, including:
- Detection of duplicate Group/Edge Node ID collisions
- Online/offline state tracking (birth/death messages, state counts)
- Detection of long keep-alive intervals or improper LWT configurations
- Insight into Edge Nodes frequently going offline or misconfigured
- ACL configuration based on Sparkplug topic tokens
- Internal compression sampling for payload optimization
Flexible deployment options
- Deploy on Windows, Linux, or containerized environments
- Support for customer-managed infrastructure
- Expand Chariot with additional functionality and modules
- Built to support evolving enterprise and large-scale MQTT architectures
Chariot's simple pricing
- No annual subscription costs
- Unlimited MQTT clients and tags
- No hardware restraints on sizing
- One-time perpetual license fee
- Free trial license for testing
- $11,950 plus optional support add-on
Chariot MQTT client A free tool to test, debug, and validate
Included with your Chariot download, the Chariot MQTT Client is a free, lightweight utility that simplifies testing, debugging, and validating MQTT connections and Sparkplug payloads.
Key features:
- Subscribe and publish to test brokers
- Visualize topic activity and payloads
- Designed specifically with Sparkplug support
- Easy-to-use, ideal for both development and troubleshooting
Why Chariot?
Chariot is the only MQTT server that understands Sparkplug’s data model, adding unique system-level insights to any MQTT deployment — including tracking Edge Node health, connection status, duplicate IDs, and more.