Link to DeveloperStudio OpenAT MQTT plugin broken


I try to follow the instruction on how to setup DeveloperStudio to develop an application using MQTT located at this url: . There it says to install the plugin from . unfortunately this link is broken.

Is there another possibility to be able to create an MQTT application (without creating my own MQTT client for open AT) or another working link to this plugin?

Help is very appreceated.