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MQTT client is designed for communication in Machine to Machine (M2M) and Internet of Things (IoT) contexts and implements MQTT protokol versions 3.1 and 3.1.1. The client is written in Erlang and tested with MQTT servers like Mosquitto and RabbitMQ.
A library that includes a Java MQTT client API that can be used in both synchronous and asynchronous applications. The library also includes various MQTT applications including a proxy that allows a server cluster to be load balanced as a single MQTT client; an HTTP <-> MQTT gateway; a mock MQTT broker; etc