Would anyone use a web tool where you upload 2d images of a character's limbs (side-facing), click submit, and then it generates animations for you? I.e. running, walking, punching, kicking, etc? It may also autogenerate code so you can easily make game prototypes with that character in C++/SFML, or some other language/framework.
There would be a cost, like $0.10 (USD) per animation, with a discount if you select all "core" animations, and additional discounts if you allow your images to be saved in a database to train a machine learning model. This would not be a subscription model, but rather pay as you go. A token would be equal to $0.01, and you could buy them and spend them to generate more animations.
This tool could be used to speed up the development of 2d side scrollers, along with other use cases.