Let me give you an example, let's say I have sellers and buyers on my site. Something costs 100 altcoins, when buyer wants to buy that one thing, I split payments between me and seller. I send 10 altcoins to my address and 90 altcoins to seller's address.
The same with tipping, when user A wants to tip user B with 100 altcoins, 10 altcoins goes directly to my crypto address and 90 altcoins goes directly to user B's crypto address
Now, this doesn't seem much like tipping the seller, does it?
Your looking out for a way to get incentives on the use of your site as well as getting to pay users of your services providers in an automated process. If it were to be tipping the seller alone with you @OP being left out, I think just an address would have worked just fine. When it comes to the later where you hope to get a slice of the cake, working a programme or software would do just fine. I can't seem to know of any but, maybe you might give a trier to MK4 directives although, do well to DYOR before giving it a green.