curl package dependency?

[pataquets]

I've stumbled into this package and it works great, thanks for sharing!
While installing (on Spacemacs), I've got several package required messages complaining about curl-0/curl package.
I see the requirement in the comment header, but no (require 'curl) on the package code.

Before investigating this, I wonder, wouldn't it be best to use the url package and drop curl altogether?
It supports headers and every feature this package might need, and it feels more native (ie. it handles proxies/gateways).