MarketSpace uses Stripe.com as the default payment gateway for marketplace sellers. We chose Stripe because they provide deep integration with our site whilst ensuring secure transactions without taking buyers to their site during the checkout process. Stripe makes it super easy to setup a seller account and they also provide an excellent API allowing our marketplace owners to charge commission on sales if they choose. With very competitive charges of 2.9% + 30¢ and the ability to sell in virtually any currency, Stripe is a great payment card choice for us and for you.
We also support payments using PayPal allowing buyers to pay with their PayPal account. Sellers with the free PayPal Business account can easily set this up with MarketSpace and start accepting PayPal payments in their marketplaces.