Supertone API uses API Key-based authentication. All requests must be authenticated by including the issued API Key in the header.
You can get an API Key immediately after signing up for the service in Supertone API console.
Supertone API uses a custom HTTP header called x-sup-api-key
for authentication.
This header must be included in all requests, and authentication errors will occur if omitted.
401 Unauthorized
: When API Key is missing or invalid403 Forbidden
: When thereโs no access permission for the resource (e.g., no cloned voice permission)When errors occur, please also refer to the Error Handling guide.