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: 2026-06-26 00:18:49 UTC
- JSON Representation
https://github.com/sophos/factory-api-client
Official Sophos Factory API client library for JavaScript.
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https://github.com/manifoldfinance/eth2docs
Ethereum2 Beacon, Execution and Consensus client APIs documentation
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https://github.com/app-generator/devtool-openapi-parser
OpenAPI Parser - Open-Source Developers Tool | AppSeed
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https://github.com/aaronshaf/confident
Use an OpenAPI (Swagger) design to define express routes, API documentation, and request/response validation
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https://github.com/zchee/openapi2protobuf
openapi2protobuf generates Protocol Buffers v3 schema and gRPC service definitions from OpenAPI/Swagger schema definitions
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https://github.com/wbcsd/pact-openapi
The OpenAPI schema definitions for the PACT Network
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https://github.com/patoconnor43/heave
A project that generates hurl files from OpenAPI
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https://github.com/artifact-keeper/artifact-keeper-api
OpenAPI 3.1 specification for the Artifact Keeper REST API. 165 endpoints, CI validation, TypeScript + Rust SDK generation.
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https://github.com/reslava/nuget-package-reslava-result
Railway-oriented programming for .NET. Handle errors without exceptions, compose async pipelines, and generate Minimal API endpoints automatically. Result<T>, OneOf, Maybe, LINQ syntax, and Roslyn analyzers — all in one zero-dependency package.
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A Visual Studio Code extension for working with the API contracts in OpenAPI and RAML formats.
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OpenAPI format of REST API Endpoints for a Symfony based project
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https://github.com/bump-sh-examples/laravel-design-first
Create your OpenAPI then use it to power your application, covering both request validation and contract testing.
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Laravel integration for Membrane validation library.
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Declare a schema of HTTP Request and Response, and then create type vaildator and openAPI Specification object.
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https://github.com/hx-gcamey/ft-back
Demos for M4(Backend) Henry Bootcamp
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https://github.com/noid-dev/codewars-openapi
Codewars OpenAPI Specification
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https://github.com/rwth-acis/openapi-link-generator
Automatically add link definitions to Swagger/OpenAPI documentations
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Code-first OpenAPI 3.0 generator for Echo framework — powered by Go AST and reflection
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https://github.com/shaddix/nock-swagger
Generate convenient methods to mock API requests using nock (based on Swagger API definition)
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https://github.com/sirn-se/phrity-slim-openapi
[php-lib] OpenApi implementation for Slim 4
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https://github.com/codexparas/db-migrator
DB Migrator is a Spring Boot-based tool for seamless data migration between MySQL, PostgreSQL, and Oracle databases. Using Spring Batch, it supports efficient batch processing and provides REST APIs for migration and data insertion.
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https://github.com/ironcore-dev/openapi-extractor
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https://github.com/bleemeo/bleemeo-python
Bleemeo Python SDK
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https://github.com/schwarzit/kotlin-rfc9457-problem-details
A Kotlin implementation of the RFC 9457 problem details format for handling HTTP API errors.
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https://github.com/microsoft/kiota-abstractions-ruby
Abstractions library for the Kiota generated SDKs in Ruby
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https://github.com/readmeio/jest-expect-openapi
Jest/Vitest matcher for asserting valid OpenAPI definitions
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PSX API Symfony Bundle
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https://github.com/t0mer/telessist
Telessist allows you to contact GPT3 directly from WhatsApp and not only that. Telessist also allows you to save your own personal data and later search and retrieve it using GPT3 to generate a response. In the examples folder, you can see several examples of how to use this bot so you don't have to remember anything ever again.
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https://github.com/jskov/openapi-jaxrs-client
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https://github.com/grohden/openapi-ts-generator
OpenAPI codegen for TS
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https://github.com/lavantien/go-laptop-booking
Laptop Booking Application in Golang and gRPC, load-balancing with NGINX, and fully compatible with HTTPS OpenAPI v3
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https://github.com/iscc/iscc-schema
ISCC - JSON-LD Metadata and OpenAPI Service Descriptions
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Plugin for apispec adding support for Swagger-style inheritance using `allOf`
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https://github.com/sumup/openapi
An OpenAPI specification for the SumUp API.
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https://github.com/saileshrijal/apiclientgen
A .NET library for automatically generating API client code from OpenAPI (Swagger) or GraphQL schemas. Simplify API integration with autogenerated, ready-to-use client code for .NET applications.
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https://github.com/ethib137/api-gui-deprecated
API GUI for Liferay DXP 7.3
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https://github.com/traefik/traefik-hub-helm-chart
Traefik Hub is a Kubernetes-native API Management solution for publishing, securing, and managing APIs. Configuration is driven by Kubernetes CRDs, labels, and selectors for effective GitOps.
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https://github.com/nimbella/nimbella-cli-plugins
Plugins to extend the capabilities of the Nimbella CLI.
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https://github.com/donatocardoso/express-swagger-delta
Library for configuration, creation and documentation for API servers with 'Express' and 'Swagger'
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https://github.com/taihei-05/siglume-api-sdk
SDK for publishing APIs that AI agents subscribe to on the Siglume API Store. Python + TypeScript. Earn 93.4% of subscription revenue.
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https://github.com/bcrikko/express-openapi-sample
express-openapiを使ってRESTful APIを実装する
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https://github.com/rxb3rth/restaurant-recommender
Find your next delicious meal with ease using our AI-powered restaurant recommendation website.
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A GitHub Action to identify differences between OpenAPI specifications. It uses OpenAPITools/openapi-diff.
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https://github.com/99x-incubator/remarkable-2-llm
Integrating LLMs into reMarkable could unlock transformative features like auto-completion, grammar/style corrections, contextual suggestions, and note summarization or paraphrasing. These tools would enhance productivity and elevate the user experience, making the device a powerful ally for creative and professional tasks.
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https://github.com/himenon/openapi-typescript-practice
OpenAPIを利用したAPI作成と、開発、リリースフローまでの仕組みづくりの練習
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https://github.com/lh1207/aeroassist
AeroAssist is a versatile ticketing system designed for efficient ticket management. Easily create, view, update, and delete tickets. Streamline your ticketing processes effortlessly.
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https://github.com/podhmo/reflect-openapi
Define OpenAPI with reflect package
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https://github.com/optimizory/vrest-ng-cli
Command line module for vREST NG. Integrates with any CI/CD server like Jenkins, TeamCity, Azure Devops etc.
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https://github.com/lazzerbeamstudios/spectra
An API template for Golang designed to integrate with the Speactr React Native Template. Provides a quick setup for backend development across mobile and web applications.
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https://github.com/tidusjar/wiremock.openapivalidator
Validate your Wiremock mappings against an OpenAPI spec
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https://github.com/intesys/generator-jhipster-apiutils
Jhipster Module with some additional utilities for API-First development
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https://github.com/limeflight/openapi-diff-action
Automatically compare OpenAPI v3 specification files and post result to PR
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https://github.com/slamdev/openapi-spring-generator
OpenAPI Generator for Java Spring framework
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https://github.com/tryagi/jina
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Koa middleware to handle OpenAPI 3.x.
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https://github.com/smallpaes/taiwan-weather-api
A web application for you to readily find weather condition and forecast in Taiwan ☀️
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Last synced: 15 Apr 2025
https://github.com/himenon/kubernetes-typescript-openapi
Implementation of TypeScript generated from Kubernetes OpenAPI
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https://github.com/danielgek/openapi-ts
OpenApi/Swagger to Typescript defenitions!
Last synced: 13 May 2025
https://github.com/danilomeneghel/votacao-pautas
Sistema de Votação de Pautas - Java com Quarkus
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https://github.com/y-temp4/minwada
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https://github.com/developermithu/openai-nextjs-image-generator
Building an image generator using OpenAI and Next Js 13.
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https://github.com/dernasherbrezon/vue-openapi-bootstrap
OpenAPI viewer component for VueJS
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https://github.com/kicksolutions/mockswagger
This Creates a mock service for given swagger definitions.
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Last synced: 26 Oct 2025
https://github.com/oai/stories
Submit ideas, writing, and publishing stories about the OpenAPI specification.
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https://github.com/adamko-dev/zally-gradle-plugin
Use Zally to validate OpenAPI specs in a Gradle project
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Last synced: 04 Jan 2026
https://github.com/anttiviljami/amplify-openapi
Amplify plugins for OpenAPI tooling
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Last synced: 04 Oct 2025
https://github.com/easymetahub/emh-marklogic-glossary
This is a template application for MarkLogic that is for a glossary viewer that also shows xqDoc and OpenAPI (Swagger-UI)
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https://github.com/eth-library/opendata-apis
Open API Specifications for open data APIs of ETH Library. See https://developer.library.ethz.ch for more informatione about APIs and how to access.
Last synced: 06 Jul 2025
https://github.com/payroll-engine/payrollengine.backend
Payroll Engine Backend Server Service
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https://github.com/captainsafia/aspnet-openapi-xml
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https://github.com/devatherock/api-specs
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