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: 2026-04-05 00:18:14 UTC
JSON Representation

https://github.com/helciodev/weather-app

A weather app that gets user location and fetches the current weather from the open weather API. The user can search up from more than 220 cities around the world, user can also choose which unit the temperature will be displayed by pressing the toggle button.

javascript npm-package openapi tailwindcss weather-app webpack

Last synced: 24 Apr 2025

https://github.com/saltbo/openapi-rest-admin

Automatically generate admin interfaces from OpenAPI specifications

admin console openapi restful swagger

Last synced: 10 Aug 2025

https://github.com/leidenheit/itarazzo-library

Library to parse, validate and execute an Arazzo specification.

api-rest arazzo arazzo-specification openapi openapi-specification testing

Last synced: 15 Aug 2025

https://github.com/webman-tech/swagger

[READ ONLY] Subtree split from webman-tech/components-monorepo

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Last synced: 11 Mar 2026

https://github.com/devexps/go-micro

A microservice-oriented governance framework implemented by golang.

go golang grpc microservices openapi protobuf

Last synced: 10 Apr 2025

https://github.com/apideck-libraries/openapi-specs

The OpenAPI specifications for the Apideck APIs.

apispec oas openapi openapi3 sdk swagger webapi

Last synced: 13 Aug 2025

https://github.com/el1s7/rests

Easily generate API client's SDK — organize and simplify API Requests — OOP-ish way.

api api-sdk-generator api-wrapper fetch fetch-api get http openapi post request requests rest rest-api schema sdk subcategories swagger

Last synced: 04 Jul 2025

https://github.com/oai/sig-travel

A repo for managing the travel working group within the OpenAPI Initiative (OAI)

openapi openapi-specification travel

Last synced: 19 Oct 2025

https://github.com/vihuvac/expressure

Expressure is a modern, opinionated boilerplate for building scalable NodeJS APIs with Express.js, TypeScript, OpenAPI, and Docker. Whether you're crafting a monolith or spinning up microservices, Expressure gives you a clean, consistent foundation with smart defaults and zero friction.

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https://github.com/jcrqr/octono

🍂 GitHub REST API for Deno projects

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https://github.com/supermodel/supermodel-cli

Boring data modeling

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https://github.com/springfox/springfox-grails-demo

Sample application to demonstrate the capabilities of integrating with grails

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https://github.com/bcgov/gwa-cli

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https://github.com/nunchistudio/helix

helix is a framework for building cloud-native, consistent, reliable, and high-performance (micro) services with automatic logging, tracing, observability, and event propagation across services and integrations.

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https://github.com/nikolaydubina/openapi-inline-examples

🌏 Inline OpenAPI JSON examples from filenames

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https://github.com/martinjrobins/battery-api

OpenAPI spec and python client for a battery data REST API

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https://github.com/jshmrtn/openapi-compiler

:gear: Eixir OpenAPI Compiler

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https://github.com/jean85/symfony-openapi-example

An example of using an OpenAPI spec in a Symfony application

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https://github.com/lob/usps-webtools-api

Open source documentation for USPS Web Tools API

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https://github.com/cjp2600/cutos

The easiest way to write OpenAPI 3 documentation using curl copy

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https://github.com/ibaca/autorest-openapi

JAX-RS service interface generator for Open API specification

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https://github.com/simonkowallik/as3ninja

:octocat: AS3 Ninja is a templating and validation engine for your AS3 declarations. No matter if you prefer a CLI or Swagger REST API, AS3 Ninja has you covered!

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Last synced: 12 Apr 2025

https://github.com/connectaman/fastapi-openapi-markdown-documentation-generator

Streamlit Application to generate FastAPI Documentation from the OpenAPI specs and convert it into a markdown API documentation

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Last synced: 15 Jun 2025

https://github.com/tryagi/replicate

Generated C# SDK based on official Replicate OpenAPI specification

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Last synced: 30 Oct 2025

https://github.com/nawaz1991/lua-oasvalidator

A FAST Lua module to validate the HTTP requests against the OpenAPI specifications of the REST server.

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https://github.com/rapter1990/foreignexchangeexample

Case Study - Openpayd Foreign Exchange Example (Spring Boot, Java 21, Docker, Maven, JUnit Test, Integration Test, In-Memory Database (H2 Database), Github Actions, Spring Open Api, Mapstruct, Spring Cache, Resillience4j (Rate Limiter))

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https://github.com/apiboard/php-openapi

OpenAPI Specification parser for PHP 8. Supports both OAS 3.0 and 3.1.

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https://github.com/schwarzit/api-linter-service

RESTful service to provide API linting as-a-service

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https://github.com/0xtheprodev/nestjs-clean-example

Clean Architecture Example using NestJS on Fastify

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https://github.com/gemyago/apigen

HTTP API Layer Generator for the Go (golang) projects

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https://github.com/supermodeltools/openapi-spec

Spec for Supermodel public API in OpenAPI YAML. Use as a reference or generate your own clients.

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https://gitlab.com/vstconsulting/vstutils

Small framework for easy generates web-applications (SPA or Single Page Application).

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Last synced: 22 Apr 2025

https://github.com/stackql/openapisaurus

Deno based openapi document utility for splitting openapi spec and generating stackql providers

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https://github.com/SAP-archive/hana-enterprise-search-engine

Sample application exposing SAP HANA search features as HTTP-REST services.

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https://github.com/oracle-japan/ochacafe-microprofile-demo

Helidon 4.x (= Virtual Thread版) に更新しました // MicroProfileとHelidon拡張機能のデモです - 随時新機能を追加してメンテナンスしています.

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https://github.com/opvious/abaca

OpenAPI TypeScript SDK generator with strong type guarantees and minimal boilerplate

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https://github.com/dsietz/actix-web-openapi

Contract testing of an OpenAPI document for REST service running on Actix Web

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https://github.com/kompendium-ano/api-factom

Haskell REST client & server for Factom Open API specification

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https://github.com/shfc/umeng-openapi-sdk

Umeng OpenAPI SDK for Go

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https://github.com/larsbergqvist/sr-traffic

A traffic messages app with data from the Open API of Swedish Public Radio. Uses Angular, OpenLayers / OpenStreetMap and PrimeNG.

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Last synced: 05 Jul 2025

https://github.com/liveoaklabs/terraform-provider-readme

⛭ Terraform Provider for the ReadMe.com API

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https://github.com/criteria-labs/criteria-api-tools

Tools for working with the JSON Schema and OpenAPI specifications.

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https://github.com/theogravity/fastify-starter-turbo-monorepo

A starter project for building an API service using Fastify v5, kysely / postgres, turbo, and pnpm with sample tests and OpenAPI endpoint / database generators to help you build quickly

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Last synced: 26 Oct 2025

https://github.com/microfocus/swagger-ui

https://microfocus.github.io/swagger-ui/

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https://github.com/cugu/swagger-go-chi

Generate a go-chi server from swagger

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Last synced: 26 Apr 2025

https://github.com/icewhaletech/icewhale-openapi

OpenAPI and API Document of ZimaOS and CasaOS

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Last synced: 13 Jun 2025

https://github.com/hasanqq/openapi-starter

API documentation boilerplate for redoc (OpenAPI) with some extra features like automatically generated postman collection.

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https://github.com/gobenpark/kinvest-go

한국투자증권 golang api

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https://github.com/romain-gilliotte/spectral

Capture web traffic while browsing, then let an LLM analyze it into OpenAPI specs, GraphQL schemas, and ready-to-use CLI configs with auth

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https://github.com/dogada/microchain

Simple blockchain prototype with API

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Last synced: 16 Oct 2025

https://github.com/nya1/ts-api-boilerplate

Quickly bootstrap your next TypeScript REST API project. Node 16+, auto OpenAPI, Prettier+ESLint, Jest

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Last synced: 23 Oct 2025

https://github.com/zchee/protoc-gen-openapi

protoc-gen-openapi is a plugin for the Google protocol buffer compiler to generate openAPI V3 spec for any given input protobuf.

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https://github.com/zchee/schema

Collection of JSON-Schema, OpenAPI, and well-known schemas

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https://github.com/badsyntax/mailinabox-api

HTTP client SDK's for the Mail-in-a-Box API.

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Last synced: 20 Mar 2025

https://github.com/prithivsakthiur/strangerai

Turning Ideas to Product - StrangerAI - StrangerZone. Recommended to Deploy inside Huggingface Spaces SDK as GRADIO

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Last synced: 16 Aug 2025

https://github.com/cdimascio/gin-openapi

Automatically validates API requests against an OpenAPI 3 spec.

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Last synced: 13 Aug 2025

https://github.com/jayanttripathy/chatgpt-integration

ChatGPT Integration in ASP.Net Core using OpenAI

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Last synced: 15 Mar 2025

https://github.com/open-solid/open-api-bundle

OpenAPI Symfony Bundle

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https://github.com/request-dl/swift-openapi-request-dl-nio

RequestDL (SwiftNIO) transport for Swift OpenAPI Generator.

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https://github.com/lifailon/selenium-modules

Modules for free use (without using API) ChatGPT, Text Translation and SpeedTest.

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Last synced: 13 Aug 2025

https://github.com/ychengcloud/cre

根据数据库表结构生成代码 Code generator via database ( crud, grpc, restful, openapi...)

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Last synced: 14 Feb 2026

https://github.com/stfalcon-studio/swaggerbundle

:package: Creates a Swagger-ui page in Symfony application.

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Last synced: 06 Nov 2025

https://github.com/muniftanjim/express-zod-openapi

Express + Zod + OpenAPI

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https://github.com/numberfour/openapi-scala

An opinionated library and SBT plugin for generating Scala code from OpenAPI 3.

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Last synced: 13 Apr 2025

https://github.com/muniftanjim/express-joi-openapi

Express + Joi + OpenAPI

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Last synced: 13 Apr 2025

https://github.com/stackql/stackql-azure-openapi

Generates a single OpenAPI document for each Azure Resource Manager service from a set of OpenAPI specifications sourced from Azure REST API specs

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Last synced: 08 Aug 2025

https://github.com/amorimjj/nestjs-redoc-try-out

NestJS-Redoc-Try-Out is an unofficial NestJS module for Redoc Try Out. It provides an easy way plugging in Redoc in a NestJS application.

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Last synced: 10 Apr 2025

https://github.com/nickheap2/add-props-flipflop

Toggle additionalProperties in an OpenAPI spec

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Last synced: 04 Aug 2025

https://github.com/alexplusde/search_it_with_gpt

Gibt via Open-API angepassten GPTs von OpenAI die Möglichkeit, Suchergebnisse von Search It abzurufen.

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Last synced: 18 Jan 2026

https://github.com/mimicry-tech/openapi_validator

A small wrapper for validating OpenAPIv3 schemata in plain elixir

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Last synced: 19 Feb 2026

https://github.com/lzehrung/zod-express-openapi-routes

POC for cozy API validation, typing, and OpenAPI/swagger schema generation with Zod and Express

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Last synced: 17 Jan 2026

https://github.com/aerabi/express-ts-swagger-docker

Express.js Backend with TypeScript, Swagger UI, and Docker Compose

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Last synced: 10 Apr 2025

https://github.com/pprzetacznik/ksef-utils

KSeF Python client for creating invoices

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Last synced: 23 Apr 2025

https://github.com/subscan-explorer/subscan-openapi

Subscan open api

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https://github.com/karenetheridge/openapi-modern

Validate HTTP requests and responses against an OpenAPI v3.1 document

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https://github.com/chandrikadeb7/go-couchbase-microservice

Go Microservice developed using Go Echo API Server OpenAPI with Couchbase backend

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https://github.com/escarter/openapimomo

Laravel package for MTN MoMo Open API

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Last synced: 27 Jan 2026

https://github.com/bububa/kwai-openapi

快手openapi golang sdk

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Last synced: 04 Sep 2025

https://github.com/bleemeo/bleemeo-go

Bleemeo Go SDK

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https://github.com/deepakbhalla/springboot-postgres-jsonb-jpa

Spring boot application to demonstrate the JSONB data type to be used in Postgre SQL database using Springboot JPA.

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Last synced: 04 Mar 2026

https://github.com/wolfeidau/realworld-aws-api

This project illustrates how to build an API in AWS using Go.

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https://github.com/thim81/spec-driven-openapi-contract-performance-testing

POC for Unlocking the Power of Spec-Driven API Development

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https://github.com/paficent/roblox-api-tracker

This repository tracks changes made to Roblox's Web Api Documentation. Checks for changes every 15 minutes

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https://github.com/acdh-oeaw/openapi4restxq

A BaseX port of openapi4restxq https://gitlab.gwdg.de/subugoe/openapi4restxq

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https://github.com/classchartsapi/api-docs

Unofficial documentation for the Classcharts API

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https://github.com/ldej/swagger-go-example

An example setup for generating swagger docs using go-swagger and swaggo. Read the blog post for details!

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https://github.com/ekkinox/bazel-demo

Golang + gRPC + Protobuf + Bazel demo

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https://github.com/wy-z/tspec

Parse golang data structure into json schema.

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https://github.com/saritasa-nest/saritasa-s3-tools

Tools For S3 Used By Saritasa

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https://github.com/zihantype/poem-extensions

为Poem框架添加扩展功能 -- Add some extensions to Poem web framework

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https://github.com/s3rgeym/openapi-vulnerability-scanner

OpenAPI SQLi Scanner

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https://github.com/finbourne/lusid-sdk-java

Java SDK for LUSID by FINBOURNE, a bi-temporal investment management data platform with portfolio accounting capabilities.

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https://github.com/istreamlabs/rest-api-lint

REST API linting using OpenAPI and Spectral

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https://github.com/enzonotario/apidocs.ar

Documentaciones de APIs

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https://github.com/microcks/microcks-testcontainers-node-nest-demo

NestJS demonstration app on how to use Microcks Testcontainers in your dev/test workflow

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https://github.com/larsbergqvist/sr-app

An Angular application that uses the Open API of the Swedish Public Radio for playing live streams, searching/playing old episodes and viewing playlists and songlists.

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