Open Digital Architecture

Introduction to Open APIs

TM Forum’s Open API program is a global initiative to enable seamless connectivity, interoperability and portability across complex ecosystem services

Leading the industry in Open API standards

TM Forum's Open API project has been at the forefront of the challenge to find the right mechanism for CSPs and vendors to work together in a faster and more flexible way. A new generation of APIs are now required to drive future growth, speeding up the ‘time to deliver value’ and accelerating the deployment of new services and products by enabling plug-and-play software integration that will revolutionize the software lifecycle for telecoms.

NEW TM Forum’s Gen5 Open APIs for a future proof ecosystem

TM Forum has launched its Gen5 Open APIs to address these needs.  These “5th generation APIs” will support the latest event-driven architectures, provide a simpler experience for developers, and enable the intent-based automation which is essential to the efficient operation and management of telecoms IT and networks.

These Gen5 Open APIs create a pathway to simplified APIs for use in industry specific applications such as WLAN, 5G slicing etc.  TM Forum is partnering with other standards development organizations such as GSMA Open Gateway / CAMARA to ensure standardization and interoperability across the industry.

Discover the TM Forum Open API directory
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API stats
Open API dashboard
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Built by the members, for the members

TM Forum Open APIs have been widely adopted by the industry as a standard interoperability method, with more than 900,000 downloads by 50,000 software developers from 2,800 organizations.

Over 70+ REST-based, Event driven and Domain Specific Open APIs have been collaboratively developed by TM Forum members working within the Open API project. This team creates a full set of Open API assets for members to implement Open APIs - from guidelines (REST API Design Guidelines), to specification, to usable code, through to the compliance test kits - see the Open API directory for more details.  

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Open API directory

Access the TM Forum Open APIs portfolio where you can find specifications, downloadable code, test kits for Rest, Ayscnc and domain specific APIs.

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Open API conformance and leader board
Open API Conformance certification for suppliers verifies the successful implementation of Open APIs in commercial products and real-world deployments, and demonstrates to clients and partners your commitment to industry standards.
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Join the Open API project
Top 5

Open API certifications

Open API Conformance certification for suppliers verifies the successful implementation of Open APIs in commercial products and real-world deployments, and demonstrates to clients and partners your commitment to industry standards.
Learn More
ODA DIrectory

Certification leaderboard

 
Company Name APIs certified Latest date Badge Scope
Jio Platforms Limited Jio Platforms Limited Certification:
  • TMF620 - Product Catalog Management
  • TMF620 - Product Catalog Management
  • TMF620 – Product Catalog Management
  • TMF621 - Trouble Ticket
  • TMF621 - Trouble Ticket Management
  • TMF621 - Trouble Ticket Management
  • TMF622 - Product Ordering
  • TMF622 - Product Ordering
  • TMF622 - Product Ordering
  • TMF622 – Product Ordering Management
  • TMF629 - Customer Management
  • TMF629 - Customer Management
  • TMF632 - Party Management
  • TMF632 - Party Management
  • TMF632 - Party Management
  • TMF632 - Party Management
  • TMF633 - Service Catalog Management
  • TMF633 – Service Catalog Management
  • TMF633 – Service Catalog Management
  • TMF633 – Service Catalog Management
  • TMF634 - Resource Catalog Management
  • TMF634 – Resource Catalog Management
  • TMF634 – Resource Catalog Management
  • TMF635 - Usage Management
  • TMF635 – Usage Management
  • TMF637 - Product Inventory Management
  • TMF637 - Product Inventory Management
  • TMF637 – Product Inventory Management
  • TMF637 – Product Inventory Management
  • TMF638 - Service Inventory Management
  • TMF638 - Service Inventory Management
  • TMF638 – Service Inventory Management
  • TMF639 - Resource Inventory Management
  • TMF639 – Resource Inventory Management
  • TMF640 - Service Activation and Configuration
  • TMF640 - Service Activation Management
  • TMF641 - Service Ordering Management
  • TMF641 – Service Order Management
  • TMF642 - Alarm Management
  • TMF642 - Alarm Management
  • TMF642 – Alarm Management
  • TMF644 - Privacy Management
  • TMF644 - Privacy Management
  • TMF645 - Service Qualification
  • TMF645 – Service Qualification Management
  • TMF646 - Appointment
  • TMF648 - Quote Management
  • TMF648 – Quote Management
  • TMF651 - Agreement Management
  • TMF651 - Agreement Management
  • TMF651 – Agreement Management
  • TMF652 - Resource Ordering Management
  • TMF653 - Service Test Management
  • TMF653 - Service Test Management
  • TMF654 - Prepay Balance Management
  • TMF654 – Prepay Balance Management
  • TMF655 - Change Management
  • TMF655 - Change Management
  • TMF656 - Service Problem Management
  • TMF656 - Service Problem Management
  • TMF656 – Service Problem Management
  • TMF657 - Service Quality Management
  • TMF657 – Service Quality Management
  • TMF662 - Entity Catalog Management
  • TMF662 – Entity Catalog Management
  • TMF663 - Shopping Cart Management
  • TMF663 - Shopping Cart Management
  • TMF663 – Shopping Cart
  • TMF666 - Account Management
  • TMF666 - Account Management
  • TMF668 - Partnership Type Management
  • TMF668 – Partnership Type Management
  • TMF669 - Party Role Management
  • TMF669 - Party Role Management
  • TMF669 – Party Role Management
  • TMF671 - Promotion
  • TMF672 - User Role And Permission
  • TMF672 – User Role Permission Management
  • TMF673 - Geographic Address Management
  • TMF673 – Geographic Address Management
  • TMF674 - Geographic Site Management
  • TMF676 - Payment Management
  • TMF677 – Usage Consumption Management
  • TMF678 - Customer Bill Management
  • TMF678 - Customer Bill Management
  • TMF679 - Product Offering Qualification
  • TMF679 – Product Offering Qualification
  • TMF680 - Recommendation
  • TMF681 - Communication
  • TMF681 - Communication Management
  • TMF683 - Party Interaction Management
  • TMF683 - Party Interaction Management
  • TMF687 - Stock Management
  • TMF696 - Risk Management
  • TMF699 - Sales Management
  • TMF704 - Test Case Management
  • TMF705 - Test Environment Management
  • TMF706 - Test Data Management
  • TMF707 - Test Result Management
  • TMF708 - Test Execution Management
  • TMF709 - Test Scenario Management
  • TMF710 - General Test Artefact Management
  • TMF716 – Resource Reservation
  • TMF720 - Digital Identity Management
  • TMF724 – Incident Management
  • TMF735 - CDR Transaction Management
  • TMF735 – CDR Transaction Management
  • TMF736 - Revenue Sharing Algorithm Management
  • TMF737 - Revenue Sharing Report Management
  • TMF738 - Revenue Sharing Model Management
  • TMF760 - Product Configuration Management
  • TMF915 - AI Management API Component Suite
 See certified APIs (112) 		November 2024 Diamond badge Open APIReal World Open APIOpen APIReal World Open APIOpen APIOpen APIReal World Open APIOpen APIOpen APIOpen APIOpen APIReal World Open APIReal World Open APIOpen APIOpen APIOpen APIReal World Open APIOpen APIOpen APIOpen APIReal World Open APIOpen APIOpen APIReal World Open APIOpen APIOpen APIReal World Open APIOpen APIOpen APIOpen APIReal World Open APIOpen APIReal World Open APIOpen APIReal World Open APIOpen APIReal World Open APIOpen APIOpen APIReal World Open APIOpen APIOpen APIReal World Open APIReal World Open APIOpen APIReal World Open APIReal World Open APIOpen APIReal World Open APIOpen APIOpen APIReal World Open APIReal World Open APIOpen APIReal World Open APIOpen APIOpen APIReal World Open APIOpen APIReal World Open APIOpen APIReal World Open APIOpen APIReal World Open APIOpen APIOpen APIReal World Open APIOpen APIOpen APIReal World Open APIReal World Open APIOpen APIReal World Open APIOpen APIOpen APIReal World Open APIReal World Open APIOpen APIReal World Open APIOpen APIReal World Open APIReal World Open APIOpen APIOpen APIReal World Open APIReal World Open APIOpen APIReal World Open APIReal World Open APIOpen APIReal World Open APIOpen APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIOpen APIReal World Open APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIReal World Open API
TM Technology Services Sdn Bhd TM Technology Services Sdn Bhd Certification:
  • TMF620 – Product Catalog Management
  • TMF620 – Product Catalog Management
  • TMF622 – Product Ordering Management
  • TMF622 – Product Ordering Management
  • TMF629 – Customer Management
  • TMF629 – Customer Management
  • TMF632 – Party Management
  • TMF632 – Party Management
  • TMF633 – Service Catalog Management
  • TMF634 – Resource Catalog Management
  • TMF635 – Usage Management
  • TMF637 – Product Inventory Management
  • TMF637 – Product Inventory Management
  • TMF638 – Service Inventory Management
  • TMF639 – Resource Inventory Management
  • TMF640 – Service Activation Management
  • TMF641 – Service Ordering Management
  • TMF642 – Alarm Management
  • TMF642 – Alarm Management
  • TMF644 – Privacy Management
  • TMF645 – Service Qualification
  • TMF646 – Appointment Management
  • TMF648 – Quote Management
  • TMF651 – Agreement Management
  • TMF652 – Resource Ordering Management
  • TMF653 – Service Test Management
  • TMF654 – Prepay Balance Management
  • TMF655 – Change Management
  • TMF656 – Service Problem Management
  • TMF657 – Service Quality Management
  • TMF663 – Shopping Cart Management
  • TMF663 – Shopping Cart Management
  • TMF664 – Resource Function Activation Management
  • TMF666 – Account Management
  • TMF667 - Document Management
  • TMF668 – Partnership Type Management
  • TMF669 – Party Role Management
  • TMF669 – Party Role Management
  • TMF670 – Payment Method Management
  • TMF671 – Promotion Management
  • TMF672 – User Role Permission Management
  • TMF673 – Geographic Address Management
  • TMF674 – Geographic Site Management
  • TMF676 – Payment Management
  • TMF677 – Usage Consumption Management
  • TMF678 – Customer Bill Management
  • TMF678 – Customer Bill Management
  • TMF679 – Product Offering Qualification Management
  • TMF680 – Recommendation Management
  • TMF681 Communication Management
  • TMF683 – Party Interaction Management
  • TMF683 – Party Interaction Management
  • TMF687 – Stock Management
  • TMF696 – Risk Management
  • TMF699 – Sales Management
  • TMF704 – Test Case Management
  • TMF705 – Test Environment Management
  • TMF706 - Test Data Management
  • TMF707 - Test Result Management
  • TMF708 - Test Execution Management
  • TMF709 – Test Scenario Management
  • TMF710 – General Test Artefact Management
  • TMF720 – Digital Identity Management
  • TMF720 – Trouble Ticket Management
  • TMF724 – Incident Management
  • TMF735 – CDR Transaction Management
  • TMF736 – Revenue Sharing Algorithm Management
  • TMF737 – Revenue Sharing Report Management
  • TMF738 – Revenue Sharing Model Management
  • TMF915 – AI Management
 See certified APIs (70) 		July 2024 Diamond badge Real World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open APIReal World Open API
Huawei Technologies Co. Ltd Huawei Technologies Co. Ltd Certification:
  • TMF620 - Product Catalog Management
  • TMF621 - Trouble Ticket
  • TMF622 - Product Ordering
  • TMF629 - Customer Management
  • TMF632 - Party Management
  • TMF633 - Service Catalog Management
  • TMF633 – Service Catalog Management
  • TMF634 - Resource Catalog Management
  • TMF635 - Usage Management
  • TMF635 - Usage Management
  • TMF635 - Usage Management
  • TMF637 - Product Inventory Management
  • TMF638 - Service Inventory Management
  • TMF639 - Resource Inventory Management
  • TMF639 - Resource Inventory Management
  • TMF639 - Resource Inventory Management
  • TMF640 - Service Activation and Configuration
  • TMF641 - Service Ordering Management
  • TMF642 - Alarm Management
  • TMF642 – Alarm Management
  • TMF642 – Alarm Management
  • TMF645 - Service Qualification Management
  • TMF646 - Appointment Management
  • TMF646 - Appointment Management
  • TMF648 - Quote Management
  • TMF651 - Agreement Management
  • TMF654 - Prepay Balance Management
  • TMF655 - Change Management
  • TMF657 - Service Quality Management
  • TMF663 - Shopping Cart
  • TMF666 - Account Management
  • TMF667 - Document Management
  • TMF667 - Document Management
  • TMF668 - Partnership Management
  • TMF668 - Partnership Type Management
  • TMF669 - Party Role Management
  • TMF671 - Promotion Management
  • TMF672 - User Role Permission Management
  • TMF673 - Geographic Address Management
  • TMF673 - Geographic Address Management
  • TMF673 - Geographic Address Management
  • TMF673 - Geographic Address Management
  • TMF674 - Geographic Site Management
  • TMF674 - Geographic Site Management
  • TMF676 - Payment Management
  • TMF677 - Consumption Management
  • TMF678 - Customer Bill Management
  • TMF679 - Product Offering Qualification
  • TMF680 - Recommendation Management
  • TMF680 - Recommendation Management
  • TMF681 - Communication management
  • TMF683 - Party Interaction Management
  • TMF687 - Stock Management
  • TMF696 - Risk Management
  • TMF696 - Risk Management
  • TMF699 - Sales Management
  • TMF699 - Sales Management
  • TMF702 - Resource Activation Management
  • TMF704 - Test Case Management
  • TMF705 - Test Environment Management
  • TMF706 – Test Data Management
  • TMF707 – Test Result Management
  • TMF708 - Test Execution Management
  • TMF709 - Test Scenario Management
  • TMF710 - General Test Artifact Management
  • TMF720 - Digital Identity Management
  • TMF720 - Digital Identity Management
  • TMF915 - AI Management
  • TMF915 - AI Management
 See certified APIs (69) 		June 2024 Diamond badge Open APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIReal World Open APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen API
Inspur Communication Information Systems Co., Ltd Inspur Communication Information Systems Co., Ltd Certification:
  • TMF620 - Product Catalog Management
  • TMF621 - Trouble Ticket
  • TMF622 - Product Ordering
  • TMF629 - Customer Management
  • TMF632 - Party Management
  • TMF633 - Service Catalog Management
  • TMF634 - Resource Catalog Management
  • TMF635 – Usage Management
  • TMF637 - Product Inventory Management
  • TMF638 - Service Inventory Management
  • TMF639 - Resource Inventory Management
  • TMF640 - Service Activation and Configuration
  • TMF641 - Service Ordering Management
  • TMF642 - Alarm Management
  • TMF644 – Privacy Management
  • TMF645 - Service Qualification Management
  • TMF645 – Service Qualification
  • TMF646 – Appointment Management
  • TMF648 – Quote Management
  • TMF651 - Agreement Management
  • TMF652 - Resource Ordering Management
  • TMF653 - Service Test Management
  • TMF654 – Prepay Balance Management
  • TMF655 - Change Management
  • TMF655 – Change Management
  • TMF656 - Service Problem Management
  • TMF657 – Service Quality Management
  • TMF663 - Shopping Cart
  • TMF664 – Resource Function Activation Management
  • TMF666 - Account Management
  • TMF667 - Document Management
  • TMF668 – Partnership Type Management
  • TMF669 – Partnership Type Management
  • TMF670 – Payment Method Management
  • TMF671 – Promotion Management
  • TMF672 – User Role Permission Management
  • TMF673 – Geographic Address Management
  • TMF674 – Geographic Site Management
  • TMF676 - Payment Management
  • TMF677 – Usage Consumption Management
  • TMF678 - Customer Bill Management
  • TMF679 – Product Offering Qualification Management
  • TMF680 - Recommendation Management
  • TMF681 - Communication
  • TMF683 – Party Interaction Management
  • TMF687 - Stock Management
  • TMF687 – Stock Management
  • TMF696 – Risk Management
  • TMF696 – Risk Management Management
  • TMF699 - Sales Management
  • TMF702 – Resource Activation Management
  • TMF704 - Test Case Management
  • TMF707 - Test Result Management
  • TMF708 - Test Execution Management
  • TMF716 – Resource Reservation
  • TMF720 – Digital Identity Management
  • TMF724 - Incident Management
  • TMF735 – CDR Transaction Management
  • TMF736 – Revenue Sharing Algorithm Management
  • TMF737 – Revenue Sharing Report Management
  • TMF760 – Product Configuration Management
  • TMF760 – Product Configuration Management
  • TMF915 – AI Management
  • TMF915 – AI Management
  • TMF921 - Intent Management
  • TMF931 – Open Gateway Onboarding and Ordering Component Suite
 See certified APIs (66) 		September 2024 Diamond badge Open APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen API
Tecnotree Tecnotree Certification:
  • TMF620 - Product Catalog Management
  • TMF621 - Trouble Ticket
  • TMF622 - Product Ordering
  • TMF629 - Customer Management
  • TMF629 - Customer Management
  • TMF629 - Customer Management
  • TMF632 - Party Management
  • TMF633 - Service Catalog Management
  • TMF634 - Resource Catalog Management
  • TMF635 - Usage Management
  • TMF637 - Product Inventory Management
  • TMF637 - Product Inventory Management
  • TMF638 - Service Inventory Management
  • TMF639 - Resource Inventory Management
  • TMF640 - Service Activation and Configuration
  • TMF641 - Service Ordering Management
  • TMF644 - Privacy Management
  • TMF645 - Service Qualification Management
  • TMF646 - Appointment Management
  • TMF646 - Appointment
  • TMF646 - Appointment Management
  • TMF648 - Quote Management
  • TMF648 - Quote Management
  • TMF651 - Agreement Management
  • TMF651 - Agreement Management
  • TMF652 - Resource Ordering Management
  • TMF653 - Service Test Management
  • TMF654 - Prepay Balance Management
  • TMF662 - Entity Catalog Management
  • TMF663 - Shopping Cart Management
  • TMF666 - Account Management
  • TMF667 - Document Management
  • TMF668- Partnership Type Management
  • TMF669 - Party Role Management
  • TMF670 - Payment Method
  • TMF670 - Payment Method Management
  • TMF671 - Promotion Management
  • TMF672 - User Role Permission Management
  • TMF673 - Geographic Address Management
  • TMF674 - Geographic Site Management
  • TMF676 - Payment Management
  • TMF677 - Consumption Management
  • TMF678 - Customer Bill Management
  • TMF679 - Product Offering Qualification
  • TMF681 - Communication
  • TMF683 - Party Interaction Management
  • TMF683 - Party Interaction Management
  • TMF683 – Party Interaction
  • TMF687 - Stock Management
  • TMF696 - Risk Management
  • TMF699 - Sales Management
  • TMF705 - Test Environment
  • TMF706 - Test Data
  • TMF707 - Test Result
  • TMF708 - Test Execution
  • TMF709 - Test Scenario
  • TMF710 - General Test Artifact
  • TMF720 - Digital Identity
  • TMF724 - Incident Management
 See certified APIs (59) 		December 2023 Diamond badge Open APIOpen APIOpen APIOpen APIReal World Open APIReal World Open APIOpen APIOpen APIOpen APIOpen APIOpen APIReal World Open APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIReal World Open APIOpen APIReal World Open APIOpen APIOpen APIOpen APIReal World Open APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIReal World Open APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIReal World Open APIOpen APIReal World Open APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen APIOpen API
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Why not improve your skills with focused training

TM Forum plays a leading role in educating the industry on innovative new approaches to accelerating digital transformation. As part of that, these 2 dedicated API courses will help you understand how to get the most out of our great library of APIs.
Open API / ODA training

TM Forum Open API Fundamentals course

Available self-paced online or expert-led on-site or virtual classroom.

The fundamentals course introduces the key concepts of Open APIs and provides examples of how they are used in real-world scenarios, how they are structured and how they relate to TM Forum Open Digital Framework so that developers and architects can begin deploying them in their businesses.

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Open API / ODA training

TM Forum Open API Practitioners’ course

Training is expert-led and can be completed on-site or via virtual classroom.

The practitioners course provides attendees the opportunity to practice using and extending the TM Forum Open APIs as well as techniques used when implementing the APIs. It will take participants through detailed lab-based exercises to ensure a significant depth of knowledge and practical skills are attained over the course of the program

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Find out about other TM Forum skills training and conformance courses or get in touch and we will contact you

Let's create the future - together

Being part of the Open API project is a powerful way to demonstrate your organization’s position at the heart of innovation, with the potential to transform the interoperability requirements within the communications industry. Find out more:

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Open API Manifesto

Over 150+ leading companies have publicly committed to developing and using Open APIs by signing the Open API manifesto.

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Open API stories

Open API stories

Read why members believe in the Open API program, how they use them and the benefits they bring to their business.

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Open API directory

Access the developer portal for TM Forum's 70+ REST-based, Event-based and domain specific Open APIs.

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Open API Certification

Open API Conformance certification for suppliers verifies the successful implementation of Open APIs.

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Open API Dashboard

The Open API Dashboard provides a monthly update that covers both API engagement and Conformance Certification.

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Open API spec jam

Open API Spec Jam

On 29 April-3 May, hosted by Salesforce in Dallas, Texas, join us for an Open API Spec Jam workshop to work collaboratively on the standardization and "schemafication" of the Open APIs. 

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