Joe elfelts spend 10 yrs to curate this list.
I build infrastructure by 10 yrs iteration, error correction, modification by learning.
This is combine of both work
https://transparentgov.net/json2tree/esri/vendor/mappingsupport/all.html
100% curated by human Joseph Elfelts (Not AI) The big difference of HUMAN vs AI is present of dead URL. AI generated content has very high percentage of old,expired,dead URL. Human(Joe) test them, removed dead ones for you.
please contact MappingSupport.com for complete dataset.