Due to the increasing amount of activities in space, the number of objects is becoming dangerously high and presenting a potential hazard to all satellites – especially in low Earth orbit. Since existing solutions are neither customer-friendly nor usable for the broader masses, new space market players are being forced to accept the risks of loss or damage. OKAPI:Orbits has developed a software-as-a-service (SaaS) solution that is dedicated to making satellite missions more sustainable and cost-efficient by offering customers space surveillance and tracking (SST) solutions as a service. It is a modular, customisable, and scalable software provided via a web interface and APIs. Due to the fact that this software is based on a data stream management system (DSMS), it offers several advantages. It can be used to operate all the relevant aspects of SST and supports integration into existing solutions.