It is usable, it is used as the internal openapi parser/validator by openapi-processor.

openapi-parser & validator

a Java 11 based OpenAPI 3.0.x & 3.1 parser with validation and pluggable document reader & json/yaml converter.

• parse OpenAPI 3.0.x & 3.1

• validate OpenAPI 3.0.x & 3.1 (json schema validation, can follow $ref’s in the OpenAPI document)

• separate apis for OpenAPI 3.0 & 3.1

• easily get resolved $ref object

• minimal dependencies

• pluggable document reader

• pluggable json/yaml converter

• pluggable format validators (planned)

modules

openapi-parser

the OpenAPI parser.

openapi-parser-bom

A "bill of materials" POM for openapi-parser dependencies.

json-schema-validator

the JSON Schema validator used by the openapi-parser.

json-schema-validator-bom

A "bill of materials" POM for json-schema-validator dependencies.

io-jackson

json/yaml Reader & Converter based on Jackson.

io-snakeyaml

yaml Reader & Converter based on snakeyaml.

io-interfaces

defines the interfaces for the pluggable document reader and json/yaml converter. Only needed for implementing additional reader or converter.