Hi,
Thanks for your message. The payment framework of the Pro (commercial) version of VikBooking can be extended through custom WordPress plugins that declare the apposite hooks to install new payment methods, to start transactions and to process the payment responses.
We do have an integration available for Mollie Payments, which is widely used among our Dutch customers, but for more precise details about the API version used by our Mollie integration, we suggest getting in touch with our team through our website, especially because your question is related to the Pro/commercial version of VikBooking only.
Thank you,
The VikWP Team
