I don't think we can help you create specific interfaces, but general API documentation can be found in the Configuration\Ticket API section of the Lansweeper web console. I'm not sure what exactly your interface should look like, but you may be able to customize the built-in interface to do what you need, with the built-in customization options. I'm not sure if creating an entirely new interface from scratch is even necessary.
In general, I do recommend sending any beta related questions to support@lansweeper.com and including "beta" in the title of your message. We haven't announced the beta publicly yet, so our development team is only answering questions via email.