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API Integration

Turn mainframe and IBM i business logic into governed APIs — without rewriting the systems underneath.

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Your AI is only as capable as the systems it can reach

Legacy platforms were built for batch jobs and green-screen sessions. Agentic AI needs real-time, structured, machine-callable access — and the two don’t meet without something in between. That gap, not the models, is where AI initiatives are stalling.

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Ship in days, not months

The inventory of real operations is already built, so you skip the separate discovery project and generate production-ready APIs fast — the 10x time-to-market pillar in practice.
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One platform, not a stack

No juggling a connector vendor, a custom integration build, and a separate event-streaming tool. Reusing existing business logic instead of rebuilding it is what drives up to 60% lower cost.
 
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AI-ready from day one

Contract-first, readable APIs that agents can reason about — expose only what AI needs, so no second project later to bolt on agent access.

Integration is a flavor of modernization

API integration usually gets treated as a stopgap — the quick fix while you plan the "real" rewrite. It's not. Encapsulating legacy assets behind governed APIs is a recognized modernization strategy in its own right, and agentic AI has made it urgent rather than optional: the business logic your AI needs most is locked inside systems it can't reach. Every API you generate is a permanent step forward — not a throwaway.

Recommended Resources

Legacy Technology Got You Down? Try Microservices and Cloud-Native Architecture

With the rise of hybrid IT and cloud-native computing there are many more modernization options available. Expert, Jason Bloomberg shares his insights.

How to Evaluate Current Approaches to Legacy Integration

OpenLegacy provides a solution which solves challenges of traditional integration, providing a way to rapidly generate digital services delivering core functionality for use in the cloud, on-prem or both.

How Your Peers Solved Common IBM Mainframe Challenges

This white paper covers insightful, real-life user stories about how your IBM Mainframe peers have approached common issues that you may be facing now.

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