Prance provides parsers for Swagger/OpenAPI 2.0 and 3.0 API specifications in Python. It uses flex, swagger_spec_validator or openapi_spec_validator to validate specifications, but additionally resolves JSON references in accordance with the OpenAPI spec. Mostly the latter involves handling non-URI references; OpenAPI is fine with providing relative file paths, whereas JSON references require URIs at this point in time. WWW: https://github.com/jfinkhaeuser/prance