* [orval v8.41.0](https://github.com/orval-labs/orval) – Generates TypeScript clients from OpenAPI v3 or Swagger v2 specifications. * [Swagger UI v5.33.2](https://github.com/swagger-api/swagger-ui) – Tool for visualizing and interacting with APIs based on OpenAPI Specification. * [Nestia v14.0.3](https://github.com/samchon/nestia) – Helper libraries for NestJS providing fast decorators, advanced WebSocket routes, SDK generation, mock simulators, and automatic E2E test functions. * [Kubb kubb@5.6.0](https://github.com/kubb-labs/kubb) – Toolkit for working with APIs. * [OpenAPI Changes v0.2.13](https://github.com/pb33f/openapi-changes) – Tool that detects and reports changes between OpenAPI and Swagger specifications, offering terminal and HTML reports. * [openapi-backend 5.21.3](https://github.com/openapistack/openapi-backend) – Framework-agnostic middleware tool for building APIs using OpenAPI definitions. * [OpenAPI v1.25.5](https://github.com/speakeasy-api/openapi) – Go packages and CLI tools for reading, mutating, validating, upgrading, and applying overlays to API specification documents. * [oasdiff v1.33.1-rc.2](https://github.com/oasdiff/oasdiff) – Command-line and Go package for comparing OpenAPI specs and detecting breaking changes. * [Scalar release-2026-10-05-d...](https://github.com/scalar/scalar) – OpenAPI/Swagger-based interactive API reference and offline-first REST client with testing, code examples, and framework integrations.