FlexBooker currently supports the following credit card processors for accepting payments, or taking no-show fee holds, during the online booking process:

CardConnect: https://cardconnect.com/

Gravity Payments: https://gravitypayments.com/partner/flexbooker/#getstarted

Braintree: https://www.braintreepayments.com/

Stripe: https://stripe.com/

PayPal: https://www.paypal.com/

If you have an existing account, or if you create a new account with one of the above processors, then you can enter your API credentials into FlexBooker to enable credit card integration.