> we were helping other Stripe merchants to get users for the exchange of % of their sales
This means:
we used Stripe Standard Connect, and you as Stripe user can connect your account to ours, and we do marketing on your behalf with no upfront fees and once customer we bring pays you we charge % from your sales. I do not know what exactly you are looking for but this is as technical as it gets except you are looking for specific codes how this works