Drop your OpenAPI spec and get a fully functional mock API server instantly. Test your frontend before your backend is ready — no account needed.
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Three steps to a working mock API
Upload or paste your OpenAPI/Swagger specification in JSON or YAML.
We parse your spec and create a live mock API with realistic responses.
Use the mock URL in your frontend. Responses match your schema definitions.
Mock servers accelerate development by letting frontend and backend teams work in parallel.
Don't wait for your backend team to finish building APIs. Generate a mock API server from your OpenAPI spec and start integrating your frontend immediately. The mock server returns realistic responses based on your schema definitions, examples, and data types.
Run integration tests against a mock server instead of your production API. No risk of side effects, no rate limits to worry about, and consistent responses every time. Perfect for CI/CD pipelines and automated testing.
Build UI components against realistic API responses before the real API exists.
Validate your API design with stakeholders using a working mock before implementation.
Run automated tests against consistent mock responses without external dependencies.