They offer Paypal style redirection but the meat is their API which does not cost extra. The trick part is, you have to ask and you have to implement your own POST routines if you are not using Java. Wouldn't be hard if you are a STARTUP right?
Most Asian based cc gateway only needs CC number, name and expiration date for transaction, which is a "plus" to get you paid. You have to be careful about potential fraud though.