I’ve made a tool for myself to explore the content of WaniKani - sometimes I want to see the whole story - from the vocabulary all the way to the radicals on the same page.
And then I realized that I’d rather want learn all the N5 vocab first, to be able to read some N5 books, to pass the N5 test etc, so I’ve taught the tool to add the content to Anki either through the web app or directly through the API calls.
I didn’t deploy it anywhere and I just run it locally when I need it. It can be a bit technical to run it for non programmers but now “in the age of AI” this should be much easier as well - just point Claude, Codex etc to it and it will tell you what to do. 
The code is here: GitHub - zubko/wanikani-explore-export: Explore WaniKani materials and export them to Anki · GitHub
The search looks like this
etc
and then the kanji card in Anki for example
The details button can be a bit glitchy in Anki so far, sometimes you may have to long press to activate it.
Also I was able to add some missing pieces like the verb conjugations or text to speech audio for one sentence that goes to Anki.
Maybe someone will find it useful for their case as well.