Hi there,
Constantly needing to do things without a big website/etc. that is not slowed down by the web browsers, so I’ve been creating shell scripts all the time. Here is my first set of “sanitized” and able to be used generically:
https://bitbucket.org/hvisage/cloudflare-shell-stuff/
They are based mostly (as a starting point) on the hosting partner API to get the user_api_key into a jsbon, but if you can get that into a json without the host api, please let me know 
May the CLI shine favour on to you