Use cases
OpenAPI2Code turns one OpenAPI or Swagger spec into typed models for five ecosystems at once. Here's where that's actually useful.
A typed frontend, kept in sync with the backend
Point the CLI at your API's spec and generate TypeScript
interfaces, Zod schemas, or both in one run
(--target ts,zod) as part of
your build. When the backend adds a field or changes a type, the
next generation run reflects it — no hand-maintained model files
quietly drifting out of date.
One spec, three native mobile codebases
iOS, Android, and Flutter teams working from the same API
traditionally hand-write and hand-maintain three separate model
layers — three places for the same field to be named
differently, typed differently, or simply forgotten. Generate
Swift Codable structs,
Kotlin data classes, and
Dart classes from the same spec instead, each with idiomatic
camelCase fields and hand-written JSON (de)serialization that
needs no runtime dependency in the consuming app.
Catching breaking API changes at build time
Regenerate types as a CI step whenever the spec changes. A field that became optional, an enum value that was removed, a renamed property — these show up as compile errors in the generated types instead of a runtime surprise in production.
Quick spec inspection, no install
Paste or drop a spec into the playground to see exactly what it generates, in any of the five targets, before committing to anything. The whole engine runs client-side, compiled to WebAssembly — nothing you paste is ever sent anywhere.
Offline, air-gapped, or behind a strict proxy
The CLI is a single static binary with no runtime dependencies and no network calls of its own beyond fetching the spec you give it — it works the same behind a corporate proxy, on a disconnected build machine, or in a locked-down CI runner as it does anywhere else.