sabri,

api has issues, please run below test case-

1. run this X1-ZUtzjpiyae7a4p_5taq2 in agent past sales endpoint, no data is returned.
2. open this url in a new tab and see sold listings https://www.zillow.com/profile/RLEYVA19 this should be shown in the above result.
3. similar issue is with active listings endpoint as well.

let me know if i am missing anything.