Your Natural applications are continuing to power your mission-critical processes and deliver unmatched reliability and value. But as the demand to connect your company’s most valuable data to modern systems grows, your existing integration tools just don’t deliver the flexibility and speed you need.
What if you could expose your Natural applications as modern REST/OpenAPI interfaces, or replace your existing ad hoc integrations and legacy API methods with a single, standardized solution, all without rewriting a line of Natural code or disrupting your operations?

BENEFITS OF NATURAL API SERVER
- Expose Natural logic as REST/OpenAPI
- Replace complex and costly adapters and middleware
- Streamline DevOps and CI/CD pipelines
- Deploy new integrations in days
- Integrate with web, mobile, and cloud
- Reduce dependency on legacy tools
- Built-in OIDC and HTTPS support (Currently for Natural Linux and Cloud only)
- Maintain compliance with modern standards
- Secure database access via Natural applications
- Zero Natural application rewrites
- Leverage existing Subprograms
- Migrate step-by-step, at your own pace
Are your Natural applications limited by outdated integrations?
Natural applications are the backbone of your enterprise, yet integrating them with modern web, mobile, and cloud environments often requires complex adapters or risky rewrites. As the pace of IT evolution accelerates, you need a smarter way to connect Natural to today’s API-driven world without compromising stability or performance.
What could you achieve with seamless, modern access to your Natural applications?
Legacy middleware and custom adapters promise connectivity but introduce complexity, high costs, and operational overhead. Traditional “big bang” migration projects carry significant risks and unpredictable timelines, threatening the stability of the very systems your business depends on.
There’s a smarter way. With Natural API Server, your existing Natural services stay exactly as they are on the server side. No rewrites, no disruption. The modernization happens on the client side, where you transition from legacy integration technology to Natural API Server’s REST/OpenAPI interface at your own pace. You can run your old and new client integrations in parallel, incrementally shifting traffic as you go, with zero impact to your Natural applications. This approach eliminates big-bang risk and gives your team full control over the transition timeline.
Natural API Server
The API platform built for Natural
A purpose-built solution for Natural customers, OpenAPI adopters, and modernization teams alike
Whether you’re looking to get more out of your existing Natural applications, adopt OpenAPI standards across your enterprise, or take the next step in your modernization journey, Natural API Server meets you where you are. It provides a single, unified connection between your proven Natural business logic and the modern systems your organization depends on.
By replacing complex adapters and legacy middleware with a lightweight REST/OpenAPI interface, Natural API Server makes your Natural services instantly accessible to cloud, mobile, and web applications. Preserve your time-tested investment in Natural while gaining the flexibility to connect your critical data to the innovative tools driving your business forward.
Key capabilities
- Directly expose Natural logic as REST/OpenAPI. No rewrites required.
- Replace complex integration stacks with a single, lightweight solution
- Deploy in containers, Kubernetes, or hybrid cloud for maximum flexibility
How it works
Step 1: Develop with familiar tools
Keep using your trusted Natural development tools or modernize with Eclipse-based IDEs. Supports DevOps practices like Git for streamlined collaboration.
Step 2: Expose Natural as REST/OpenAPI
Natural API Server dynamically exposes your Natural subprograms into standard OpenAPI endpoints at runtime, making them instantly accessible to modern applications.
Step 3: Deploy anywhere
Run on z/OS, Linux, or cloud environments with native support for containers and Kubernetes. No infrastructure changes or retraining needed.
Step 4: Access your data securely via Natural
Maintain seamless access to Adabas, Db2, VSAM, and other data sources. Built-in OIDC (Linux Only) and HTTPS ensure enterprise-grade security for every API call.

Ready to see how Natural API Server can modernize your integration and accelerate digital transformation?
You may also like:
Modernizing development with APIs and DevOps
Learn how TASE modernizes development with NaturalONE, DevOps integration, and RESTful APIs, enabling Adabas data and Natural apps to be widely accessible.
Bringing the app to the mainframe for modern e-government services
Exposing Adabas & Natural applications as APIs accelerates moving to microservices, enabling integration into new business models and digital services.

Adabas & Natural
Adabas & Natural 2050+ helps you digitalize your legacy, manage generational change, modernize applications, and accelerate development in an ultra-modern environment.