SANDBOX: Testing within the sandbox only requires a simple registration at our website. The Sandbox is a closed environment, without any connection to the banks (API Providers), that retrieves static data with the same structure as production data. This way, a TPP can ensure that messages are well-formatted. No need to use eIDAS certificates or other credentials than register with us.
TEST & PRODUCTION: The Test and Production environment provides all the technical documentation and end-to-end testing to fully test your apps and user experience. You need to be a registered TPP and have a valid eIDAS or at least have formally started registration with a National Competent Authority (NCA) for using PSD2 APIs. For APIs out of PSD2 scope, requirements will depend on the Product.