Plugin Catalog
This catalog collects plugin-specific documentation for custom EMQX plugins maintained outside the built-in product documentation.
EMQX plugins are typically built when standard product features do not fully meet a requirement, or when a domain-specific problem is better solved as an extension rather than as a built-in capability.
Some plugins remain specialized, while others may later be promoted into standard EMQX features if they prove useful across a broader range of real-world use cases.
The plugins listed on this page are maintained as part of the emqx.git monorepo.
Data Integration
This plugin forwards MQTT messages from EMQX to a remote MQTT broker and uses a disk-backed queue to improve resilience during downstream outages or intermittent connectivity failures.
Data Governance
This plugin enforces Unified Namespace topic structure and optional payload validation rules, helping you standardize topic hierarchies and data contracts at publish time.
Access Control
This plugin enforces cluster-wide concurrent session limits per username, with support for quota overrides, snapshot-based inspection APIs, and administrative session control.