Dear Iuri,
I see in
https://openacs.org/projects/openacs/packages/
a package called "Authorize.net Payment Gateway".
You better check with its author.
Many e-commerce solution have their own PCI Payment Gateway solutions. Before using them you should also check:
1. which Vault(s) they rely upon
2. how compliant with standard the selected gateway (and so your website) is.
Hope it helps,
Maurizio
