Read information from Homey in JSON format

Hi all homey people!
I am setting up a dashboard using DAKboard. It can read values from other sources using JSON.

Can I use this to get values from my Homey? Unfortunately I am no JSON expert so if I can get some help it would be much appreciated. Both regarding if Homey is able to provide information in JSON format and also how to write the actual JSON object.

Thanks a lot in advance!