It was developed by a Danish startup named Financys, which was acquired by Schantz (another Danish company) and this was later acquired by Keylane from the Neth

It was developed by a Danish startup named Financys, which was acquired by Schantz (another Danish company) and this was later acquired by Keylane from the Netherlands. Unfortunately I don’t think there are any good, detailed information about the technology available any more.