openapi-typesafe

OpenAPI 3.x to TypeScript types, and a type-safe fetch client. A drop-in successor to openapi-typescript and openapi-fetch that works with TypeScript 7.

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Migrate from openapi-typescript

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Runtime-free types

Static TypeScript types add nothing to your bundle. The fetch client is a few kilobytes and wraps the native Fetch API.

TypeScript 7 ready

The generator prints types itself and needs no TypeScript compiler, so it runs next to TypeScript 7 or any earlier version.

Drop-in

The same CLI flags, Node API and output as openapi-typescript 7.13, checked byte for byte against openapi-typescript 7.13 on a corpus of real-world schemas. One command moves a project.