openapi-mock

A lightweight, specification-first Go API mock server that generates realistic responses from OpenAPI 3.0 specifications.

🔌 Provides a fake OpenAPI interface for local developing & testing.

Seeded, realistic fake data plus real countries, regions, flags and maps, with latency, error and messy-data drills: a REST API, a free static API, an OpenAPI mock, MSW handlers or a Vite plugin.

OpenAPI mock server with automated tests using Prism, Vitest and a generated TypeScript client

A schema for how data behaves with a mock server for test.

Intercept HTTP requests, validate against OpenAPI schemas, and generate fake responses for testing