An Internet of Things (IoT) module adaptor application may be used to provide operational compatibility between a device application of an IoT device and multiple IoT modules. The IoT module adaptor application may detect that an IoT module is connected to the IoT device, in which the IoT module provides a network connectivity functionality to the IoT device. An identity of the IoT module is ascertained by the IoT module adaptor application based on identification information provided by the IoT module. The IoT module adaptor application may determine a specific combination of at least one of one or more ATtention (AT) commands or one or more application program interfaces (APIs) as stored in a software library that corresponds to the identity of the IoT module. Subsequently, the IoT module adaptor application may provide a device application of the IoT device with access to the specific combination for the device application to interact with the IoT module.