openapi-ts/openapi-typescript

Health v2 · maintenance only

Adoption not part of the score

8333 stars · 661 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

A monorepo of tools for consuming OpenAPI schemas in TypeScript, centered on openapi-typescript which converts OpenAPI 3.0/3.1 specs into static TypeScript types, plus openapi-fetch for type-safe fetching. It generates zero-runtime-cost type definitions that work with any framework or stack.

Use cases

• generate TypeScript types from an OpenAPI 3 spec
• convert swagger yaml to .d.ts type definitions
• type-safe API client generated from OpenAPI schema
• keep frontend types in sync with backend API spec
• typecheck API responses against OpenAPI schema
• generate types for OpenAPI 3.1 schemas

When to choose

• you have an OpenAPI/Swagger spec and want static TypeScript types with zero runtime overhead
• you want type-safe fetch calls derived directly from your API schema
• you need a framework-agnostic codegen that works with any TypeScript stack

When to avoid

• you want a full runtime SDK with validation and retries rather than just types
• your API has no OpenAPI specification to generate from
• you need runtime request/response validation, which this tool does not provide

Facets

library · maturity stable

sdk developer-tools http-client developer-tools apis web-development frontend backend cross-platform openapi swagger type-generation codegen type-safety api-client code-generation nodejs typescript

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