The first conversation is scoping. Stack, constraints, and whether we are the right fit.
What is API-first modernization for an older system?+
A stable API sits in front of the system you already run. New products call that API. The old system stays the place the work happens until you choose otherwise. You get a written contract: what it may read, what it may change, who owns it, and how a caller is turned off. It is not a rewrite, and it is not a database login for the new app.
Do we have to replace the old system first?+
No. Replacement is a different project. The first step is a contract the new work can call while billing, the warehouse, and the night job keep running. If you do want the system moved onto a stack your team can keep, start with legacy software modernization.
What should the API be allowed to do?+
A short list. Read the order, the customer, or the inventory fields the new caller needs. Change only what a person has already approved, such as a status the old screen also understands. It should not update a price, post a payment, or see every column because a wide query was easier.
Who owns the API?+
A named person who already owns the old system or the integration, plus a backup. That person can say what a caller did yesterday and can turn that caller off. "The team" is not an owner.
How do you turn a new caller off?+
Revoke that caller's key, or flip the flag for that caller, without taking the old system down. The old screen, the old job, and the old users keep working. If the only off switch is a deploy rollback, it is not an off switch.
What does the first caller usually look like?+
One new path. A customer portal that reads order status. A checkout that posts a status the old order form already understands. A mobile app that must not get a database password. Later callers reuse the same contract. They do not each get their own back door.
Which older systems do you put an API in front of?+
Systems the business still runs and nobody wants to rewrite on day one: older .NET, classic ASP, on-premises apps, and the database behind them. A .NET move, when that is the job, is .NET modernization. The API can come first so new work is not waiting on that move.
What if the system holds patient data, or the new work is a mobile app?+
Say so on the first call. Patient records and clinical systems go through Maxiom Labs, including SMART on FHIR for Epic and Cerner. A mobile app that needs your backend or ERP is Connect a mobile app to your backend or ERP. People to put on the integration itself are Hire API and integration developers.
How do we start?+
A 30-minute scoping call. Bring the system new work needs to reach, and the name of the person who owns it today. We will tell you if the right next step is this API, a modernization of the system itself, or someone else. You can contact us or use the form on this page.