The European AFIR allows QR-Codes for charging at some charging stations. Nevertheless the AFIR also requires additional security requirements to ensure the security of the payment process. For this the Open Charge Point Protocol Version 2.1 will include secure dynamic QR-Codes.
This app should act as one of the reference implementations to ensure interoperability and fast market adoption.
OCPP v2.1 Secure Dynamic QR-Codes Testing App