Verisign's PayFlow Pro offers a seamless payment processing solution for merchants requiring peak performance and complete customizability. Ideal for enterprise merchants who require complete customizability for a controlled consumer experience. However, the cost of Versign PayFlow Pro is $39.95 per month. We would recommend that you use Authorize.net online payment. Authorize.net offers the same features as verisign pay flow pro. Authorize.net offers real time online payment for $10 per month.
To signup for an Authorize.net account or a merchant account click here.
To signup for an Verisign PayFlow Pro account click here.