Tekla Open API is ideal for a wide range of applications
Explore the .NET API into Tekla Structures, the truly constructible BIM platform
Tekla Structures 2024 API References Tekla Structures 2025 API References Documentation
Unleash the potential of Tekla
You can optimize workflows to seamlessly integrate with other software and machinery by customizing Tekla Structures' functionality. Accelerate your daily tasks by automating manual work to speed up modeling and drawing creation and boost your productivity like never before. Using the power of Tekla Structures, you can create intelligent 3D products for building product manufacturers and leverage the dynamic and scalable platform, enabling you to develop tailored software solutions.
Why Tekla Open API?
The comprehensive API reveals the unmatched 3D modeling and automated construction documentation capabilities of Tekla Structures. Being built on .NET, the API enables you to leverage Microsoft's extensive libraries and support.
Unlocked core capabilities
The broad API with the inherent 3D modeling flexibility of Tekla's core gives developers the freedom to innovate with virtually no limitations on the scope of actions. Unlike other platforms, you never have to compromise on accuracy, even with large models.
Dedicated guidance on your coding journey
Receive personalized assistance and tailored support from our dedicated team members in the forum, who are ready to answer your questions.
Designed for intuitive understanding
The .NET API follows object-oriented programming, making it easy to understand. Moreover, the API mirrors the user interface, eliminating the challenge of adapting to a new terminology.
Committed to ongoing support and improvement
Regular updates improve the overall functionality and reliability of your applications.
Trimble 0-60 Challenge 2025 Winners
The jury-selected winners of the Trimble 0-60 Challenge 2025 were announced at Trimble Dimensions in Las Vegas. Special awards were presented by HP powered by Nvidia and AWS.
This year's competition highlighted exceptional innovation and talent. Congratulations to all!
Become a Tekla Developer
Start a free trial
Test Tekla Structures and Tekla Open API with a 30-day free trial.
Join the Tekla Partners Program
Buy a Tekla Partners Program Suite license for app development, full support, permission to sell, and global reach of Tekla users.
Upload your app to Tekla Warehouse
Distribute your app to a broad audience within the Tekla community.
Join Tekla Development Experts
Promote your expertise and connect with Tekla users seeking software developers.
AI-powered Developer Assistant now included in Partner license
The Developer Assistant aids in writing macros and modifying models using the Tekla Open API. In Tekla Structures 2025, it's a Preview feature, and we welcome feedback via the extension or API discussion forum!
Join the API community
Developers make Tekla Open API for developers. Join the Tekla Discussion Forum to find solutions to your problems and receive personalized assistance from our dedicated team members.
Take the free Tekla Open API certification course
Take the free certification course and earn a certificate to demonstrate your Tekla Open API expertise to your clients and professional network.
See how others have succeeded with Tekla Open API
In-house developers
Coding essential internal productivity tools:
- Crane and capacity planning
Add-on developers
Developing and selling innovative extensions:
- Making sure special bolts fit on the construction site
Manufacturers
Creating intelligent 3D products and tools:
- Constructible content and direct access to the product portfolio
Students
Learning coding as a part of their studies:
- Check out the "He did it all by himself" video.
“There's no limitation to what you can do through the API. It doesn’t matter what type of construction you’re designing for – it can be done in Tekla.”
Marhinus du Plessis,
Managing Director of ParaMatic
Policy - Tekla APIs License Agreements
Tekla development opens up a world but also comes with some restrictions. Read the Tekla APIs License Agreements here.
Tekla Model Sharing in coding projects
With Tekla Model Sharing, you work closely with your development team and end-users regardless of their location or time zone.
Remember to join only non-production models or ask to be added as a Viewer when using Tekla Structures Partner.
Tekla Developer News
Innovate with confidence: Tekla Structures for startups
Build your startup's innovation on the Tekla Structures platform, relied on for iconic structures.
Important Model Sharing reminder
Your Tekla Partners Program Suite now includes a Tekla Model Sharing license. When using Model Sharing with Tekla Structures Partner, join only test models or request Viewer access to avoid watermarking all drawings of production models. Enjoy your new license!
Collect leads from Tekla Warehouse
Tekla Warehouse offers a partner download link option. The link lets you share files from your company's website and collect contact information.
Trimble 0-60 Challenge 2025 winners
Trimble's 0-60 Challenge fosters innovation in AECO startups. Finalists showcased their solutions at the Dimensions user conference, where three winners and two special award recipients were recognized for outstanding Trimble software integrations.