Do I get in touch with credit card numbers or do I see my customers‘ credit card details?

As long as you do not collect credit card details on your homepage in plain text, you will not get in touch with any credit card details that are subject of PCI DSS security requirements. Payengine tokenises every credit card (and all other payment instrument) according to PCI DSS standards and delivers you the token ID (‚paymentInstrumentId‘) that can be used for all subsequent payment transactions. In Merchant Center, you will only be able to see your customers‘ masked credit card number (e.g. ************0123).