First of all, thank you for considering helping out, we really appreciate that!
PaperMC has various recurring expenses, mostly related to infrastructure. Paper uses Open Collective via the Open Source Collective fiscal host to manage expenses. Open Collective allows us to be extremely transparent, so you can always see how your donations are used. You can read more about finanically supporting PaperMC on our website.
You can find our collective here, or you can donate via GitHub Sponsors here, which will also go towards the collective.
Special Thanks To:
YourKit, makers of the outstanding java profiler, support open source projects of all kinds with their full featured Java and .NET application profilers. We thank them for granting Paper an OSS license so that we can make our software the best it can be.