If you have an OpenAPI specs file (YAML or JSON), then you can quickly create a mock server using one of the following tools.
- Microrocks: https://microcks.io/documentation/using/openapi/
- Prism: https://docs.stoplight.io/docs/prism/674b27b261c3c-overview
- OpenAPI mock: https://github.com/muonsoft/openapi-mock
- Imposter: https://www.imposter.sh/
A list of all other OpenAPI tools is given here: https://openapi.tools/
