* [kin-openapi v0.134.0](https://github.com/getkin/kin-openapi) – OpenAPI v2 and v3 implementation for Go with parsing, conversion, and validation.

* [Counterfact v2.1.0](https://github.com/pmcelhaney/counterfact) – Mock server focused on flexible, stateful API mocking for front-end development and testing workflows.

* [@openapitools/openapi-generator-cli v2.30.2](https://github.com/OpenAPITools/openapi-generator-cli) – CLI tool that downloads and runs the OpenAPI Generator Java executable for generating API clients, servers, and documentation.

* [oasdiff v1.12.2](https://github.com/oasdiff/oasdiff) – Command-line and Go package for comparing OpenAPI specs and detecting breaking changes.

* [apigen-ts v1.3.0](https://github.com/vladkens/apigen-ts) – Generate a single-file, fully typed TypeScript fetch client from OpenAPI/Swagger supporting v2, v3, and v3.1.

* [OpenAPI Changes v0.0.97](https://github.com/pb33f/openapi-changes) – Tool that detects and reports changes between OpenAPI and Swagger specifications, offering terminal and HTML reports.