TM Forum — How to manage Digital Transformation, Agile Business Operations & Connected Digital Ecosystems
    • Log in
    • Register
  • Knowledge
    • Knowledge overview
    • Research & insights
    • Themes
      • Data + AI
      • Autonomous Operations
      • Cloud Native IT + Networks
      • Ecosystems
      • People + Planet
  • Labs
    • Labs overview
    • Co-creating solutions (Catalysts)
    • Member projects
    • Innovation Hub
    • Hackathon
    • Global Architecture Forum (GAF)
  • Open Digital Architecture (ODA)
    • Open Digital Architecture (ODA)
      • Get started with ODA
      • ODA component directory
      • Running on ODA
      • Ready for ODA
      • Governance
      • Business Architecture Overview
      • Information Systems
      • Implementation Architecture
      • Deployment and Runtime
    • How to apply ODA
      • Member resources
      • Member toolkits
      • Intent-based Automation
      • CaaS
      • NaaS
      • AI / AN
      • Autonomous Networks
    • Open APIs
      • Open API Directory
      • Open API Conformance Certification
      • Open API Project
      • Open APIs Dashboard
      • Open API Training
      • Open API Stories
    • Business Process Framework (eTOM)
    • Information Framework (SID)
  • Training + accreditation
    • Training + accreditation overview
    • Training
      • Training courses
      • Enterprise training
      • Recommended courses
      • Course bundles
      • Success stories
    • Certification
      • What is Certification?
      • TM Forum Skill Paths
      • Certification Leaderboard
    • Conformance
      • Overview
      • Certifications Awarded
      • Business Process Framework Conformance
      • Information Framework Conformance
      • Open API Conformance
    • Services
  • Events
    • Upcoming events + webinars
    • Sponsorship opportunities
  • Membership
    • About Membership
    • Benefits
    • Current members
    • Become a member
    • 2024 Annual Meeting of Members
    • Open Sessions
  • Log in
  • Register
Back to top

Member Resources

  • Open APIs
  • Open Digital Architecture
    • Open Digital Component Accelerator (ODA-CA)
  • Open Digital Framework1
    • Business Process Framework (eTOM)
    • Information Framework (SID)
    • Functional Framework
    • Application Framework (TAM)
    • TM Forum Metrics
    • Member toolkits
  • Member resource library

How can I get my API implementation to be conformant to TM Forum Open API specifications?

Curated by Alfred Anaya-Dubernard    Date created 15 February 2021

Share

  1. Define the scope of your API conformance project.

    Select APIs relevant to your solution from the Open API Directory.

  2. Execute Conformance Test Kit (CTK) script to validate your APIs

    Run self-testing for your APIs to achieve conformance certification.

  3. Get formal certification for your solution

    TM Forum Open API Conformance Certification.

You may also like

  • See the leaderboard of companies with Open API Conformance
  • Learn how Open APIs fit into the Open Digital Architecture (ODA)
  • Check the Open API adoption industry trends

14 comments

  1. Michelle Nowak
    on Jan 27, 2025 [ reply ]

    I have a question, for the APIs that support REST and Async does the CTK support the Async API certification? Thank you!

  2. jenn kim
    on Mar 21, 2024 [ reply ]

    As a member, do I have to pay to obtain the Open API Conformance certification?

    • Becca Reeves
      on Apr 16, 2024 [ reply ]

      Hi Jenn Kim,

      API Conformance Certification is available to all members by arrangement with their Engagement Manager. You can find out who your Engagement Manager is by navigating to your member companies page in the current members section of the website.

      If you are not yet a member, and would like to find out more, please do reach out and we can connect you with your appropriate contact.

      Best regards,

      TMF

  3. Sreevalli Dupakuntla
    on Oct 10, 2023 [ reply ]

    HI,
    How to get delta between tmf 638(v1/v2 vs v4/v5) and tmf 639(v/v2 vs v4).?

    • Becca Reeves
      on Oct 10, 2023 [ reply ]

      Hi Sreevalli,

      I will encourage your Engagement Manager to reach out to you directly regarding this and some support we can offer.

      Thanks for your query and we will be in touch

  4. Omer Moaz
    on Dec 16, 2022 [ reply ]

    Does API Certification requires TMForum membership?

    • Becca Reeves
      on Oct 10, 2023 [ reply ]

      Hi Omer,

      Yes – TM Forum Open API certification is a membership benefit. There are a host of other benefits we can demonstrate to you. If you want to learn more please contact us through our joining page at : https://www.tmforum.org/membership/how-to-join/#membership-interest-form

      We would be delighted to explore opportunities and how we can support your company on this journey.

  5. Vinitha Bhargavan
    on Oct 26, 2022 [ reply ]

    Hi , I am seeking conformance for the TMF 639/638 APIs we have built. While running tests i can see errors. Could i get support to resolve the issues please

    • Profile Picture
      Andy Tiller
      on Oct 26, 2022 [ reply ]

      Hi Vinitha, TM Forum has a formal Open API certification program which comes with support (see https://www.tmforum.org/conformance-certification/open-api-conformance/). We also have a support community here: https://engage.tmforum.org/communities/allcommunities. 639 and 638 have been certified successfully many times (see https://www.tmforum.org/certifications-awarded/) so we should be able to help resolve your issues.

  6. Juan Eduardo Martínez Aguilera
    on Oct 13, 2022 [ reply ]

    Hi, we would like the assess the possibility of certifying our implementations of Open APIs. Is there a formal way to start?

    • Profile Picture
      Sue Davis
      on Oct 14, 2022 [ reply ]

      Hi Juan, the formal part is detailed on the link on step 3 above. This starts with emailing this address [email protected] who will send you a short questionnaire.

  7. Rohit
    on Mar 10, 2022 [ reply ]

    Please give us examples of how to use the ctk to validate

    • Sue Davis
      on Jul 3, 2023 [ reply ]

      If you click the title “Execute Conformance Test Kit (CTK) script to validate your APIs” on point 2 above it will take you to detailed steps on how to use the CTK.

Leave a Reply Cancel reply

Member Resources

  • Open APIs
  • Open Digital Architecture
    • Open Digital Component Accelerator (ODA-CA)
  • Open Digital Framework1
    • Business Process Framework (eTOM)
    • Information Framework (SID)
    • Functional Framework
    • Application Framework (TAM)
    • TM Forum Metrics
    • Member toolkits
  • Member resource library
TM Forum

Explore TMForum

  • About the Forum
  • Careers with TM Forum
  • News & Insights
  • Privacy Policy
  • Website T&Cs and Cookies
  • Help & FAQ
  • Contact

Contact us

  • General Inquiries: [email protected]
  • Member Services: [email protected]
  • Interested in Joining? [email protected]
  • Press Inquiries: [email protected]

Stay Connected

©2025 TM Forum