The contract comes before the code — endpoints, payloads, errors, and limits agreed and written down.
We specify the interface first: what each endpoint does, what it accepts and returns, how it fails, and what a consumer may rely on. That specification is the thing two teams can build against in parallel.
Designing it up front is also the cheapest time to notice that the data model does not support what the business wants to do with it.
We learn how this works for you today, from the people involved in it.
We agree what good looks like, who owns which step, and how success is measured.
We deliver the work in a narrow first slice you can see functioning.
We measure it, correct it, and widen it only once it holds.
Credentials are vaulted, access is scoped to what the job needs, and every call is attributable. Least privilege is the default rather than an upgrade.
Monitoring surfaces the failure quickly and the interface is documented, so the fix is a change rather than an archaeology project.
From the data flow and the owners first, so the estimate reflects what has to move and who decides, not how many endpoints there are.
Tell us what you are trying to accomplish. If aPI design and specification is not the right starting point, we will say so.