MEF 3.0 LSO Sonata API Certification

The highest level of performance, assurance, and agility.

Certifying LSO Sonata APIs

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:

Buyer or Seller
Business Function
LSO Sonata Release
Product Payload

MEF 3.0 Certified Logo - Purple

Learn More about LSO API Certification:

Educational Materials:

MEF LSO API Certification Data Sheet — 2025 Feb

Product Portfolio: LSO API Certification

This Data Sheet outlines MEF LSO API Certification.

Learn More

What Can I Achieve with MEF 3.0 LSO Sonata 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.

Advantages of certifying LSO Sonata APIs:

Demonstrate industry leadership.
Accelerate readiness for inter-provider business-function automation.
Improve value proposition for your wholesale offerings.
Gain preferred status with major buyers for API implementation scheduling.

Mplify your Credibility—Lead the industry with best practices.

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