Please see below links for the IOx downloads from CCO. To download them, you must have a CCO account. If you have no CCO account, and are Cisco partner, please send mail to iox-support@@@cisco.com and ipg-partner-eng-support@@@external.cisco.com(remove two @) for help.
Your device must have a compatible IOS image. Minimum IOS version required is 15.6.2T. Download the appropriate image for your router from Cisco Software Central[https://software.cisco.com/] website. To download the latest version, please visit Cisco Systems.
ioxclient is available for Linux 32/64 bit, MAC OS 32/64bit, Windows 32/64bit platforms.Once downloaded, on MAC and Linux, you may need to mark it as executable (chmod +x ioxclient). You could copy it somewhere in your system path (ex. /usr/local/bin) for easier usage.