Application API Utilities username GET
October 15, 2026 at 9:35 AM/username [GET]
Check whether a given username already exists in the system - unprotected.
Parameters
username(string, max 100 chars) [REQUIRED] - the username for which you’re checking availability
Response Messages
403 Forbidden - If username is ommitted
{ "fail" : "Invalid Argument" }
200 OK - success
The result indicates whethe ther username exists or not.
{ "exists" : "y" } // or "n"