the json response contains only an array with the vaules of the custom fields and not also the keys. So if i search for a specific value in a specific custom field i can get a lot of false positives, then i have to fetch every orgs in the results, call GET organizations/:id for each of them and finally check if the specific field has the correct value.
This is a problem that if resolved potentially reduce of a magnitudo the order of api calls of this kind.