orval-labs/orval

Health v2 · maintenance only

Adoption not part of the score

6396 stars · 674 forks observed · 2026-08-28

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

Orval is a code generation tool that produces type-safe TypeScript API clients from OpenAPI v3 or Swagger v2 specifications in YAML or JSON format. It generates models, HTTP request functions, data-fetching hooks for frameworks like React Query, SWR, Angular, Vue, Svelte, and Solid, plus MSW mocks with Faker.js data.

Use cases

• generate typescript client from openapi spec
• create react query hooks from swagger json
• auto-generate msw mocks from openapi yaml
• generate zod schemas from openapi specification
• stop hand-writing api client boilerplate
• generate typed axios client from swagger v2
• mock backend for frontend testing from api spec

When to choose

• you have an OpenAPI/Swagger spec and want type-safe clients without manual boilerplate
• you use React Query, SWR, Angular, Vue, Svelte, or Solid and want generated hooks
• you need MSW mocks with Faker data to test frontend without a backend
• you want zod validation schemas generated from your API contract

When to avoid

• your API has no OpenAPI or Swagger specification
• you need a runtime API client library rather than generated code
• your spec is invalid or heavily non-standard, as generation depends on spec quality

Facets

cli-tool · maturity active

http-client mocking type-system cli web-development frontend apis developer-tools testing cli cross-platform openapi swagger typescript codegen react-query msw axios zod api-client-generator faker code-generation nodejs

Member repositories

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