Since Atoy does not currently offer a public API, I have implemented a little utitlity to export a user’s library albums (strictly the “library” section; no ratings, reviews, lists, or tags for now) to a json file (work in progress!).
Example of use:
atoy-exporter -u luar
I have compiled it for MacOS (with AMD64 architecture).
If you do not have knowledge of software development and are interested in using it, tell me what operating system and architecture you use (for example Windows with an AMD processor) and I will compile a version that you can use.