Warning. If you use the server version of Usedesk, you will have a different URL of methods. Check the URL for the API with support — email@example.com.
To enable requests, check the checkboxes, for which requests should arrive, on the API settings page (Channels → API).
Usedesk will send you requests to the address specified when configuring the API channel at the "Redirect url” field.
If you enable the "JSON request" — the request will come at json-format with the appropriate headers.
Setting "send to UTF-8" removes character conversions, for example, at comments.