Willyweather API - weather or weather station?

Hi, I am trying to apply for an API on willyweather so that I can use the willyweather integrations on home assistant. The question is on the willyweather website, do I apply for the Weather api or the Weather Station?

https://www.willyweather.com.au/api/register.html?step=2

Appreciate help.

Thanks!

I’m aware I’m a bit late but for completeness

I registered for all of them. You’re only charged for the type of request made, so there’s no reason not to register for all