Standard CWA 16926-61:2020
Extensions for Financial Services (XFS) interface specification Release 3.40 - Part 61: Application Programming Interface (API) - Service Provider Interface (SPI) - Migration from Version 3.30 (CWA 16926) to Version 3.40 (this CWA) - Programmer's Reference
35.200 Interface and interconnection equipment 35.240.15 Identification cards and related devices 35.240.40 IT applications in banking
The specification defines a standard set of interfaces such that, for example, an application that uses the API set to communicate with a particular Service Provider can work with a Service Provider of another conformant vendor, without any changes. XFS 3.40 has been designed to minimize backwards compatibility issues. This document highlights the changes made to the API/SPI between version 3.30 and 3.40, by highlighting the additions and deletions to the text.