Either way you are still paying your 1c per hour to RuneMate. Doing it 'officially' just means you have the protection of code verification by an executive, otherwise you take that developer on trust.
Javadocs can be found at Generated Documentation (Untitled) . If you are looking to get into creating bots with RuneMate I would highly recommend joining the RuneMate Slack. Its where all the devs hang out and discuss things.
There is some misinformation here. The developer of your private bot is required to have one public bot per user of a private script. The user of the private script only needs to pay for the hours / concurrent slots that they use. If developers choose to try and circumvent the system the user of...