The Esri arcGIS World Geocoding Service API features the autocomplete suggestions functionality for predicting address and location searches. The API generates various suggestions for locations or addresses with each character that is typed in by a user. It is designed to detect characters as they are keyed in by a user, and return a list of suggestions for the target location or address. This allows users to find a location with the minimum characters possible. The World Geocoding Service API returns a maximum of 15 suggestions per search. The API returns responses in JSON and JSONP formats.