Common API Framework for 3GPP Northbound APIs
The present document specifies the architecture, procedures and information flows necessary for the CAPIF. The aspects of this specification 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 common API framework applies to both EPS and 5GS, can be hosted within a PLMN or SNPN, and is independent of the underlying 3GPP access (e.g. E-UTRA, NR).