This is the Cities data collection
You can use these endpoints to get Features and Features Collections in GeoJSON. In docs you can find a small map with this data. GraphQL will arrive soon to this category.
GET
/api/citiesGet an array with the complete list of elements
GET
/api/cities/:(index or ID)Get an element by index or ID
GET
/api/cities/randGet a random element
PUT
/api/cities/:(index or ID)Update a complete element
PATCH
/api/cities/:(index or ID)Update partial fields of an element
POST
/api/citiesCreate a new element
DELETE
/api/cities/:(index or ID)Delete an element
/docs#geo