Mosquitto MQTT Broker

A lightweight and scalable open-source message broker that implements the MQTT protocol which provides a simple method of carrying out messaging using a publish/subscribe model.

Mosquitto is lightweight and scalable open-source message broker that implements the MQTT protocol which provides a simple method of carrying out messaging using a publish/subscribe model. It is suitable for "machine to machine" messaging such as with low power sensors or mobile devices such as phones, embedded computers or microcontrollers. Mosquitto for OpenVMS implements the MQTT protocol versions 5.0, 3.1.1, and 3.1 and includes all functionality provided by the open-source release including SSL/TLS support, bridging, client authentication, and access controls.