The OpenAPI Specification Repository

Swagger UI is a collection of HTML, JavaScript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API.

Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.

🌐 Wikipedia for Web APIs. Directory of REST API definitions in OpenAPI 2.0/3.x format

A flexible JSON/YAML linter for creating automated style guides, with baked in support for OpenAPI (v3.1, v3.0, and v2.0), Arazzo v1.0, as well as AsyncAPI v2.x.

Onmyoji Auto Script | 阴阳师脚本

OAS-driven Frontend-NoCode Administration Console

Port OpenAPI Specs to Postman Collections, inject test suite and run via Newman 👨🏽‍🚀

😎 A list of awesome projects related to OpenAPI 3.0.x, curated by the community

OpenAPI/Swagger 3.0 Parser and Swift code generator

vacuum is the worlds fastest OpenAPI 3, OpenAPI 2 / Swagger linter and quality analysis tool. Built in go, it tears through API specs faster than you can think. vacuum is compatible with Spectral rulesets and generates compatible reports.

libopenapi is a fully featured, high performance OpenAPI 3.1, 3.0 and Swagger parser, library, validator and toolkit for golang applications.

OpenAPI Spec Validator is a CLI, pre-commit hook and python package that validates OpenAPI Specs against the OpenAPI 2.0 (aka Swagger), OpenAPI 3.0 and OpenAPI 3.1 specification.

PHP-code generator for Laravel framework, with complete support of JSON-API data format

Openapi-core is a Python library that adds client-side and server-side support for the OpenAPI v3.0 and OpenAPI v3.1 specification.

API Generator - instantly generate REST and GraphQL APIs (openapi (OAS) 3.0.0)

An object oriented approach to generating OpenAPI specs, implemented in PHP.

RESTest: Automated Black-Box Testing of RESTful Web APIs

Tool which generates full picture of coverage of API tests based on OAS (Swagger) v2 and v3

Concise DSL for generating OpenAPI Specification 3 (OAS3) JSON documentation for Ruby application.