At this page: https://hub.arcgis.com/search?collection=Site
It list 3865 hub sites avaliable.
If I run this https://opendata.arcgis.com/api/v3/search?filter[collection]=any(Site)
it only return 10 sites
if you want to get more result,
you have to run https://opendata.arcgis.com/api/v3/search?filter[collection]=any(Site)&page[key]=eyJodWIiOnsic3RhcnQ...
which have next page (key).
What I want is to get all 3865 site at one request:
https://opendata.arcgis.com/api/v3/search?filter[collection]=any(Site) & some magic parameters
return all 3865 site instead of only first page 10 with next page key value in meta{}