Do you mean I should use API programming to develop such a system?
Do you mean broker platform or my API-app?
If I encrypt linux filesystem with private key, can the hosting/VPS see my files? As if they don't see what I've running in the VPS, so they don't know what is for stealing! What about this?
sorry, I didn't get exactly what you mean in the term of creating service, so how this service will get connected to broker, and how to my phone, how the data feeds comes in?
not sure how to connect, do you mean connect another scripting language by API, but where is the data feeds, is it come to platform of broker and I connect my app by API to broker? Even If I program with API, code should be compiled by broker compiler as far as I know. Maybe there is possibility to prevent this, but not sure?
I'm thinking of creating a secret message, maybe by email, that I can sent to robot that I compiled with broker platform, if my email message or subject have a Private-Key that match with Shared-Key of compiled script, they can match the HASH, if hash, matched, then robot start learning. What do you think about this?