Install MQTTX using the Command Line.
Windows
Mac
Linux
DockerDesigned to help develop and debug MQTT faster on the terminal.
Open Source100% open source under Apache 2.0 license
Dependency-freeGet up and run with no prerequisites required
Easy to IntegrateQuick integration into automation test scripts
One and Two Way SSLSupport for one-way and two-way SSL authentication
The mqttx-cli Agent Skill teaches AI coding agents to operate MQTTX CLI correctly and safely — connection checks, publishing and subscribing, MQTT 5 features, TLS authentication, payload codecs, benchmarks, and data simulation.
npx skills add emqx/MQTTX --skill mqttx-cli
mqttx conn -h 'broker.emqx.io' -p 1883 -u 'admin' -P 'public'
mqttx sub -t 'hello' -h 'broker.emqx.io' -p 1883
mqttx pub -t 'hello' -h 'broker.emqx.io' -p 1883 -m 'Hello from MQTTX CLI'
Quickly deploy EMQX anywhere — in the cloud or on your own infrastructure.
Build MQTT data pipelines in minutes — connect millions of devices and scale effortlessly.
Deploy EMQX on your own servers with full control.