* [@openapitools/openapi-generator-cli v2.41.0](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 v1.28.0](https://github.com/oasdiff/oasdiff) – Command-line and Go package for comparing OpenAPI specs and detecting breaking changes.

* [kin-openapi v0.146.0](https://github.com/getkin/kin-openapi) – OpenAPI v2 and v3 implementation for Go with parsing, conversion, and validation.

* [Counterfact v2.16.0](https://github.com/counterfact/api-simulator) – Generates TypeScript routes from OpenAPI/Swagger specs and runs a stateful, hot-reloading mock API.

* [huma v2.39.1](https://github.com/danielgtaylor/huma) – Modern, flexible Go microframework for building REST and HTTP RPC APIs using OpenAPI 3.1 and JSON Schema.

* [OpenAPI Changes v0.2.11](https://github.com/pb33f/openapi-changes) – Tool that detects and reports changes between OpenAPI and Swagger specifications, offering terminal and HTML reports.

* [apigen-ts v1.4.0](https://github.com/vladkens/apigen-ts) – Generate a single-file, fully typed TypeScript fetch client from OpenAPI/Swagger supporting v2, v3, and v3.1.

* [Fastify OpenApi Glue v4.11.4](https://github.com/seriousme/fastify-openapi-glue) – Plugin for Fastify that autogenerates configuration from OpenAPI specifications.

* [OpenAPI v3.1 Specification v1.3.0](https://github.com/sv-tools/openapi) – OpenAPI v3.1 specification implementation for Go using generics, with built-in parsing and validation for specs and data.

* [OpenAPI schema validator v2.9.1](https://github.com/seriousme/openapi-schema-validator) – JSON Schema validator for OpenAPI 2.0, 3.0.x, 3.1.x and 3.2.x specifications.