API design review
Resource naming, method semantics, versioning strategy, and consistency with your domain language — checked against real consumer journeys.
Programming consulting · Sandton & remote
Written REST API reviews before your consumers find the gaps
API Vertex reads your OpenAPI documents, handler code, and integration tests, then delivers a prioritized report on resource design, error shapes, pagination, and auth boundaries — the details integration partners actually argue about.
What we examine
Each review is scoped to one API surface (internal, partner, or public). We do not sell hosting or licenses — you receive findings and office hours to walk your engineers through them.
Implementation review
Handlers, serializers, status codes, and idempotency behavior compared to the published contract and your stated SLAs.
Contract workshop
A half-day working session to align product, backend, and mobile on error models, pagination, and breaking-change policy before build.
“The report called out that our refund endpoint returned 200 with an error body — mobile had been branching on HTTP status for two releases. Fixing that alone stopped a queue of partner tickets.”
— Nomsa K., lead engineer, retail payments integrator (Johannesburg)“We booked the implementation review expecting a lint pass. Instead we got a table mapping each 409 to the recovery path our support team should document. Took an extra day to digest, and it was the useful kind of blunt.”
— David R., backend contractor, logistics API (Cape Town)From the field notes
Short guides we share with clients after reviews — also published for your team.
REST resource naming checklist
Plural nouns, compound resources, and when a verb in the path is still honest.
Error response shapes clients expect
Stable codes, machine-readable types, and human text that support can quote.