
EMQX
8.1#1 in message broker softwareFrom $234 a monthFree planWebAPILinuxmacOS
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EMQX suits teams building IoT systems that need MQTT messaging alongside data processing, protocol gateways, and integrations. Its deployment choices and management API may also suit teams that want to operate the platform through containers, Kubernetes, or installation packages.
You want what its maker publishes above — check its page for the details.