Bekko provides Java API for develop ZigBee application and allow user applications to communicate standard ZigBee devices.
Unlike other "XBee API Java-Wrapper", Bekko features ZDO/ZDP implementations and standardized APS data connection API. You can implement ZCL application by using ZCL extension pacakge.
Bekko is avalilable under LGPL v3(GPL v3 for ZCL) and a commercial license. For more information about a commercial license, please contact to firstname.lastname@example.org