API (Application Programming Interface)
A set of protocols and standards allowing different software applications to communicate and exchange data. In telecommunications, APIs enable third-party developers to integrate with carrier networks but introduce security risks if not properly authenticated, rate-limited, and validated.
Categories: Protocols and Standards
API in context
Telecom security is written into standards from 3GPP, GSMA, ETSI, IETF and ITU-T. Understanding which body owns which specification, and how the specs interlock (for example 3GPP TS 33.501 with GSMA FS.34 for 5G SBA security), is essential for both design and audit work.
To place API in the wider telecom-security picture, review SCADA, 3GPP, OAM, OT, Subnet and AF.
Related terms
Related topic hubs
- 5G NEF Security Network Exposure Function security in the 5G core.
More from the TelcoSec Glossary
Browse the full TelcoSec Glossary, the Ultimate Guide to Mobile Network Security, or the P1 Arsenal of telecom-security tools.