After populating the list in Anki, manually search for cards by tag (e.g. tag:jlpt-n1) and move them to the appropriate deck. Advice would be to start with N1 and move down to N5, so that the N5 tag ...
A bot that sends a daily amount of JLPT N1-5 (default is N1) Level Kanji. Make sure the worker is enabled on the resources tab on Heroku. Alternatively you can run it on your machine or another server ...