Algorithmia seems like an interesting service. People write scripts that are callable as web endpoints, similar to AWS Gateway + Lambda, and anyone with an account can call the endpoints and pay on a per-call basis. They recently did a writeup focused on image and video manipulation that featured three of my endpoints:
https://algorithmia.com/algorithms/jhurliman/PNGImageHistogram
https://algorithmia.com/algorithms/jhurliman/VisualImageDiff
https://algorithmia.com/algorithms/jhurliman/VideoInfo