orval-labs/orval

Some data may be outdated — see provenance labels.

orval is able to generate client with appropriate type-signatures (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification, either in yaml or json formats. 🍺 observed · 2026-09-24

github.com/orval-labs/orval · homepage · TypeScript · MIT (permissive) observed · 2026-09-24

Health v2 · maintenance only

93/100

Activity 96
Release rhythm 84
Longevity 100

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.

gap_med: 4.0
age_days: 2449
days_rel: 27
days_push: 27
n_releases_24m: 79

Full methodology

Adoption not part of the score

6473 stars · 688 forks observed · 2026-09-24

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

3 sources

readme: https://github.com/orval-labs/orval · fetched 2026-09-24 · 8881f3c1da3a
homepage: https://orval.dev · fetched 2026-08-29 · 4bac72c97472
site_page: https://orval.dev/docs · fetched 2026-08-29 · 84f330a0efb5

Member repositories

Repository	Role	Health v2
orval-labs/orval	main	93

For agents

markdown · JSON · MCP: product_card(name="orval-labs/orval")

Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem