Add-ons for libraries: Even a thing?

Many college libraries offer streaming video platforms. Some major vendors are

  • Kanopy
  • Films On Demand
  • Swank
  • Digitalia

Typically access from outside the campus network (off-campus access) is password protected, mediated through a proxy server. Logged-in users can then browse the film collections and watch films in web players.

Here’s my dumb, innocent question: Have people developed add-ons to play such collections in Kodi? Or is that not even possible?

Thanks!