AS/400 modernization services that keep what works Newer code, data, screens and APIs on the IBM i you already run

Not every part of an IBM i needs modernizing. We find the call streams the business changes most and the ones other systems need to reach, and start there. The rest can stay as it is.

AI is proven at understanding and improving an old system where it runs (Gartner, October 2026), which is why we modernize in place before anyone talks about moving.

Code written in RPG III or fixed-format RPG IV is hard for newer developers to read. Our RPG modernization converts it to free-form RPGLE, breaks large programs into ILE modules and service programs, and replaces native file reads with embedded SQL.

Before any of it, AI agents read each program and write its rules down in plain language, and an engineer reviews and signs every change. That's how RapidIT works.

Many IBM i databases are still defined in DDS, with the rules held in the programs. We move them to SQL tables with keys, constraints and views, so other tools can query the data safely and the database protects itself.

REST APIs over the programs other systems need let your portals, partners and AI agents reach the IBM i without screen scraping or file drops.

For the people who use it, we replace the green screens they use most with browser and mobile pages. Order desk staff stop paging through three screens to check an order.

• APIs secured and logged
• Web screens for the busiest tasks
• Green screens kept for the rest until they're needed

We put your RPG source in Git, set up builds and automated tests, and move changes between environments the same way as the rest of your software. Changes stop depending on one person's library list.

Code newer developers can read, data other systems can reach, screens new staff learn quickly, and changes that ship faster with less risk. You keep the reliability of the IBM i while removing what makes it hard to change.

It depends on the number of call streams and how far each one goes. We modernize one stream at a time, so the first is in use in weeks and the rest follow in the order that pays most.

It depends on the scope, the size of the code, and the layers you modernize. A one-week audit gives us enough to quote a fixed price per stream or a monthly team.

Yes. We review what was done, compare the modernized programs with the old ones on real records, and fix or redo the parts that don't match.

We start with your goals and an audit, then propose a fixed price or a monthly team. Our engineers work with yours, and every change is reviewed and tested against the old system before release.