Hi,
Could you please describe us your need with more details? What data you want to get from Kentico CMS? What code are you using to achieve this? Any additional details would be appreciated.
Just for reference, here you can find information about how to use Kentico CMS
API and controls outside Kentico CMS project. Also, in that section there are also other topics and API examples which may be helpful.
Best Regards,
Juraj Ondrus