Get a DDNS key.Ask AIget https://api.noip.com/v1/account/ddns-keys/{ddns_key_username}Get data associated with a DDNS key.Path Paramsddns_key_usernamestringrequiredThe username identifier of a DDNS key.Responses 200OK 401Unauthenticated 404Not Found 429Too Many RequestsUpdated 27 days ago