The main uses cases leading to API methods are described below :

1) First TPP app enrolment

• This step is necessary for all new TPP willing to access for the first time to our PSD2 API

• All TPP having already used our PSD2 API can also use this API REGISTER in order to be self autonomous for updating their new apps

• The TPP agents can also be registered using this API with a different name from TPP’s one (one request per agent)

2) Extract data of an already existing registered app

3) Modify a registered app data e.g. if eIDAS certificats are about to expire

4) Remove all registered app data e.g. if the app is obsolete (full deletion)