OpenAPI Specification

The OpenAPI Specification (OAS), previously known as the Swagger Specification, is a specification for a programming language-agnostic, machine-readable interface definition language for describing, producing, consuming, and visualizing web services. OpenAPI documents describe API services and are represented in YAML or JSON formats.

GitHub: https://github.com/topics/openapi
Wikipedia: https://en.wikipedia.org/wiki/OpenAPI_Specification
Repo: https://github.com/OAI/OpenAPI-Specification
Created by: OpenAPI Initiative, Tony Tam, Darrel Miller, Mike Ralphson, Ron Ratovsky, Uri Sarid, Jason Harmon
Released: August 10, 2011
Related Topics: json-schema, raml, rest-api,
Aliases: open-api, swagger-spec, swagger-specification, openapi-spec, openapi-specification, open-api-specification, oas, openapi-description,
Last updated: 2026-07-05 00:18:41 UTC
JSON Representation

https://github.com/connorjs/swapi-typespec

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https://github.com/hnjm/openapi-specification

The OpenAPI Specification Repository

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https://github.com/openchargingcloud/ocpiexplorerwebapp

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https://github.com/douglasvolcato/golang-api-template

A premade template for building rest apis fast and easy using Golang.

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https://github.com/apiaddicts/openapi-example-aggregator

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https://github.com/developertown/create-openapi-client

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https://github.com/matija2209/payload-plugin-api-guide

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https://github.com/ricardozanini/quarkus-openapi-gen-showcase

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https://github.com/peter/python-content-api

Example Python Content API and microframework using JSON Schema and OpenAPI based on PostgreSQL, MonboDB, and Flask

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harvest client, generated from the OpenAPI spec.

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https://github.com/pjfanning/swagger-pekko-http-sample

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https://github.com/restfulhead/azure-functions-nodejs-openapi-validator

Open API validator and an Azure Functions v4 hook that validates http requests.

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https://github.com/borolgs/openapi-ff

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https://github.com/deptno/nsdi

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https://github.com/ryomendev/swagger-openapi

This repository provides a hands-on guide to integrating Swagger (OpenAPI) with Node.js and Express for API documentation. Learn to define endpoints, request bodies, and responses while testing APIs interactively using Swagger UI. Ideal for beginners and professionals improving API documentation. 🚀

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https://github.com/gearnode/erl-stripe

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https://github.com/onlyphantom/revconnexion

RevConnextion is a RESTful API application built on top of Connexion and can be used as a standalone post-workshop survey system

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https://github.com/chrisallenlane/unifi-mcp

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https://github.com/maks11060/typescript-libs

Useful TypeScript utilities

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https://github.com/soufantech/supertest-openapi-validator

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https://github.com/m-aciek/mock-openapi-verifier

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https://github.com/i2y/mcpizer

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https://github.com/rodrigokamada/tdc-business-sp-2022

Repositório utilizado no evento TDC Business 2022 com o tema "API REST em Node.js: Boas práticas em produção".

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https://github.com/maastrichtu-ids/knowledge-collaboratory-api

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https://github.com/web2solutions/domain-designer

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https://github.com/devnogi/open-api-batch-server

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https://github.com/rrjanbiah/legacy2openapi-spec

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https://github.com/laserphaser/swagger-client-generator

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https://github.com/aaronhuggins/typedoc-plugin-openapi-doc

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https://github.com/coderlane/bugzilla-open-api

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https://github.com/soenneker/soenneker.elevenlabs.httpclients

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https://github.com/kioku/aperture

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https://github.com/treyturner/ts-artifacts

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https://github.com/bymbly/api-tools

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