Study on common Application Programming Interface (API) framework for 3GPP northbound APIs
The present document is a technical report which identifies the architecture aspects necessary for the development of a CAPIF for 3GPP northbound APIs, and corresponding architectural solutions. The aspects of the study include identifying architecture requirements for the CAPIF (e.g. registration, discovery, identity management) that are applicable to any service APIs when used by northbound entities, as well as any interactions between the CAPIF and the service APIs themselves.
The study takes into consideration the existing work within 3GPP related to APIs as well as API frameworks defined outside 3GPP. The recommendations from the study include architecture solutions that may be considered for normative work, based on the gap analysis of the identified architecture requirements and the existing solutions.