XS2A is open for production since May 29th. We most welcome you to read more about the services offered via the “How To” section “8. Specific Berlin Group Implementation”. Access to open banking APIs in production will be restricted to qualified third parties, having obtained authorization from a National Competent Authority (NCA) to operate as a Payment Services Provider, with the roles it requires (AISP, CBPII, PISP). Qualified Website Authentication Certificates (QWAC) that have a PSD2 eIDAS certificate profile will be required . All information on our API services and sandbox is available and does not require any registration. Need support ? A “contact” button is available in the footer of our API developer portal . You can ask a question, provide feedback and report issues. Or you can contact us via firstname.lastname@example.org.