* [chanfana v3.3.0](https://github.com/cloudflare/chanfana) – OpenAPI 3 and 3.1 schema generator and validator for Hono, itty-router and other routers.

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

* [Platformatic v3.41.0](https://github.com/platformatic/platformatic) – Toolkit for building modern Node.js applications with minimal setup and maintenance.

* [oapi-codegen v2.6.0](https://github.com/oapi-codegen/oapi-codegen) – Command-line tool and library for converting OpenAPI specifications to Go code.

* [Counterfact v2.0.0](https://github.com/pmcelhaney/counterfact) – Mock server focused on flexible, stateful API mocking for front-end development and testing workflows.

* [@openapitools/openapi-generator-cli v2.30.0](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.

* [ogen v1.20.0](https://github.com/ogen-go/ogen) – OpenAPI v3 code generator for Go producing statically typed clients, servers, optimized JSON encoders, validation, and a static radix router.

* [Fern 3.82.0](https://github.com/fern-api/fern) – Platform that converts API definitions into production-ready SDKs, interactive documentation, and AI-powered developer search.

* [ApiDOM v1.7.0](https://github.com/swagger-api/apidom) – Unifying structure for describing APIs across multiple description languages and serialization formats.

* [OpenAPI React Query Codegen v2.1.0](https://github.com/7nohe/openapi-react-query-codegen) – Code generator that creates React Query (TanStack Query) hooks from an OpenAPI schema.

* [OpenAPI v1.22.0](https://github.com/speakeasy-api/openapi) – Go packages and CLI tools for reading, mutating, validating, upgrading, and applying overlays to API specification documents.

* [Swagno v3.2.0](https://github.com/go-swagno/swagno) – Generate Swagger 2.0 or OpenAPI 3.0 documentation for Go without annotations, exported files, or commands.

* [datadog-api-client-go v2.56.0](https://github.com/DataDog/datadog-api-client-go) – Go client for the Datadog API.

* [rspec-openapi v0.25.0](https://github.com/exoego/rspec-openapi) – Generate OpenAPI schema from RSpec request specs without requiring special DSL.

* [vacuum v0.24.0](https://github.com/daveshanley/vacuum) – Ultra-fast, lightweight OpenAPI and Swagger linter compatible with Spectral rulesets.

* [Portman v1.34.0](https://github.com/apideck-libraries/portman) – Tool to convert OpenAPI specs to Postman collections with contract and variation tests.

* [libopenapi-validator v0.13.0](https://github.com/pb33f/libopenapi-validator) – OpenAPI validation extension that validates HTTP requests, responses, OpenAPI documents, and JSON/YAML schemas.

* [libopenapi v0.34.0](https://github.com/pb33f/libopenapi) – High performance Go library for parsing, validating, and handling OpenAPI 2, 3, and 3.1 specifications.

* [OpenAPI schema validator v2.8.0](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.

* [Zudoku v0.69.0](https://github.com/zuplo/zudoku) – OpenAPI-powered documentation framework with plugin extensibility and an integrated authenticated playground.

* [swagger-axios-codegen 0.18.1](https://github.com/Manweill/swagger-axios-codegen) – Swagger client that uses axios and TypeScript.

* [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-sampler v1.7.2](https://github.com/Redocly/openapi-sampler) – Generates sample payloads and responses from OpenAPI and JSON Schema definitions.

* [PowerX v1.0.1](https://github.com/ArtisanCloud/PowerX) – AgentOS-based platform for AI agents and CRM workflows, providing MCP, gRPC/REST, SDKs, IAM/RBAC, event bus, and DB/flow layers.

* [@switchbot/homebridge-switchbot v4.3.14](https://github.com/OpenWonderLabs/homebridge-switchbot) – Homebridge plugin for accessing SwitchBot devices from HomeKit.

* [Shuffle Automation v2.2.1-nightly](https://github.com/Shuffle/Shuffle) – General-purpose security automation platform for security teams, offering workflow editor, OpenAPI-based app creation, and resource sharing.

* [oazapfts! @oazapfts/resolve-v1...](https://github.com/oazapfts/oazapfts) – TypeScript client generator for OpenAPI servers.

* [Fastify OpenApi Glue v4.10.2](https://github.com/seriousme/fastify-openapi-glue) – Plugin for Fastify that autogenerates configuration from OpenAPI specifications.

* [OpenAPI to CLI (ocli) v0.1.14](https://github.com/EvilFreelancer/openapi-to-cli) – Turns any OpenAPI/Swagger-described HTTP API into runtime CLI commands, exposing one subcommand per endpoint.

* [next-openapi-gen v0.10.5](https://github.com/tazo90/next-openapi-gen) – Automatically generates OpenAPI 3.0 documentation from Next.js projects with Zod and TypeScript support.

* [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.

* [LoopBack @loopback/typeorm@0....](https://github.com/loopbackio/loopback-next) – Framework for building modern applications requiring complex integrations.

* [runtime v0.29.3](https://github.com/go-openapi/runtime) – OpenAPI runtime interfaces for Go, supporting code generation and untyped client/server usage.

* [Gram server@0.27.0](https://github.com/speakeasy-api/gram) – Platform for creating, curating, and hosting MCP servers with a TypeScript SDK, OpenAPI support, and tools to build agent-accessible toolsets.

* [spec v0.22.4](https://github.com/go-openapi/spec) – Object model for OpenAPI v2 (Swagger 2.0) specification documents.

* [Scalar release-2026-03-05-4...](https://github.com/scalar/scalar) – OpenAPI/Swagger-based interactive API reference and offline-first REST client with testing, code examples, and framework integrations.

* [Tracecat 1.0.0-beta.19](https://github.com/TracecatHQ/tracecat) – Modern automation platform for security and IT engineers with YAML templates, no-code workflows, lookup tables, and case management.

* [GraphQL Mesh release-177153033760...](https://github.com/ardatan/graphql-mesh) – GraphQL federation framework and gateway that exposes diverse APIs and databases through a unified GraphQL schema.

* [Angular OpenAPI Client Generator @ng-openapi/zod@0.0....](https://github.com/ng-openapi/ng-openapi) – OpenAPI-based Angular TypeScript client generator producing typed models and injectable services.

* [microsoft/kiota-typescript @microsoft/kiota-ser...](https://github.com/microsoft/kiota-typescript) – TypeScript libraries for Kiota-generated API clients.