The new MEF 3.0 LSO Sonata Certification enables buyers and sellers of wholesale connectivity services to validate that their suite of APIs used for inter-provider business transactions conform to MEF standards. Tested and certified LSO Sonata APIs are a combination of four elements:
LSO API Certification Blueprint — 2026 Feb
Product Portfolio: LSO API Certification, APIs
This document specifies the Mplify LSO API Certification test categories, descriptions, requirement IDs, test cases and requirements (TC & R) references, used as part of the Mplify LSO API Certification.
Case Study: Console Connect’s Journey to Mplify LSO API Certification — 2025 Sep
Product Portfolio: LSO API Certification
Console Connect Leads the Industry as First Provider to Achieve the New Mplify LSO API Certification
MEF LSO API Certification Data Sheet — 2025 Feb
Product Portfolio: LSO API Certification
This Data Sheet outlines MEF LSO API Certification.
The combination of MEF 3.0 LSO Sonata and CE certifications will play a critical role in accelerating the industry transformation to dynamic services across a global federation of automated networks.
All certified APIs and their providers are listed in the LSO API Certification Registry.