When I attempt to retrieve a list of cities using the specified parameters, I’m not getting any results:

URL: ‘https://wft-geo-db.p.rapidapi.com/v1/geo/cities’,
Params:
minPopulation: '1000000’
namePrefix: 'São Paulo’
languageCode: ‘pt-BR’

This issue persists even when I exclude the ‘languageCode,’ accentuation, or ‘minPopulation’ criteria, São Paulo city is not found. It seems that the API only return it when searching by the city ID, as demonstrated in this example:

https://wft-geo-db.p.rapidapi.com/v1/geo/cities/Q174

São Paulo is also a region (state), so it can be confusing, but São Paulo City alone is the largest city in Brazil.