On September 12th, we will release in production a new version of our developer portal, sandbox and API's with some improvements.

The services may be unreachable for a very short time between 6 a.m. and 8 a.m.

Here are some explanations about registration / authentication on our XS2A solution:

Dear TPP's, we inform you that our production API’s XS2A are available since May 29th.
 

The first services available are:

The first APIs that will be released are:

We are pleased to welcome you on our newly released developer portal for TPP.