I look all over the net for some information about making the same implementation but I can seem to find where they are taking the data from,I need some kind of api and/or json file.
I see it in more sites so I don’t think they especially buy that boundaries info for cities and neighborhoods.
The boundaries on guru.co.il are not from OpenStreetMap.
As far as I can tell, kangarim.co.il does not have boundaries, only labels.
OpenStreetMap has a complete set of city labels and boundaries. We also have an incomplete set of neighborhood labels, but except for a few places (specifically Haifa) they do not have boundaries.