As far as I know (if I'm wrong correct me) there is currently no API for Straks. Devs are working on it currently - see roadmap. It's the current goal. If you want to know current nethash you can check it on
suprnova pool (left menu)or by using
MPOS api.
By the way I didn't know this page. Looks great (except white style... i prefer darks one). All in one
