Comarch’s multi-protocol IoT broker ingests data from LoRaWAN, NB-IoT, Sigfox, Bluetooth, and Zigbee sensors simultaneously, standardising them into a unified data model for city analysts and third-party app developers. Digital twin engine mirrors the city’s sensor topology in a GIS-integrated 3D map, enabling operators to click any street light, sensor, or meter and see its live status, history, and maintenance schedule. REST API and webhook integrations share data streams with third-party smart city applications — traffic management, waste routing, environmental compliance, and emergency dispatch. Built-in analytics templates generate monthly KPI reports on energy savings, CO2 reduction, and maintenance efficiency for city council reporting. Certified for GDPR data residency within EU borders with national-cloud deployment options.