Hi Atilla Mete Turedi
Yes, you are correct. In order to program a MKW24D512 device, your minimal requirements are a debugger (like the J-link Plus) and if you want to use BeeKit to develop ZigBee application, you'll need IAR Workbench.
If you required further information please don't hesitate to ask.
Hope this information helps you
Have a great day,
Jorge Alcala