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: 2026-07-02 00:22:14 UTC
JSON Representation

https://github.com/martinm85/openapi-dotnet-tools

Reads Open API document, generates Markdown files and markmap files

markmap markmap-lib mindmap openapi openapi-specification

Last synced: 12 Apr 2025

https://github.com/xuhaojun/linebotsdkx

C# line bot sdk

csharp linebot openapi openapi-generator

Last synced: 14 Jan 2026

https://github.com/antoniojvargas/smartcar

A Node.js and Express API that simulates Smartcar vehicle endpoints, including vehicle info, doors, fuel, battery, and engine control. Includes Swagger (OpenAPI) documentation and unit tests with Mocha, Chai, and Sinon.

chai express mocha nodejs openapi rest-api sinon smartcar swagger

Last synced: 13 Apr 2026

https://github.com/jenderenco/inkifyai-doc-generator

AI-powered tool that generates comprehensive, human-readable documentation from OpenAPI/Swagger specifications using large language models.

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Last synced: 09 Apr 2026

https://github.com/alejandrosoares/speakwiz

Raise your confidence in English by practicing and speaking with this platform. Developed using Django Rest Framework and React.

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Last synced: 13 Apr 2026

https://github.com/jpcadena/fastapi-poetry-test

FastAPI test project using Poetry as interpreter.

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Last synced: 12 Apr 2026

https://github.com/himenon/argo-rollouts-typescript-openapi

Generate TypeScript Code from Argo Rollouts OpenAPI Schema.

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Last synced: 10 May 2026

https://github.com/govuk-one-login/spec-retriever

Retrieves OpenAPI specs from GitHub repos.

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https://github.com/quickwrench/quickwrench-api

QuickWrench backend API written using Django ⚡

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https://github.com/sbyeol3/movie-list

Demo Web Listing Movies with Open Movie API 🎫

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https://github.com/rajeshkumar7678/code_convertor

this is backend for code convertor from any language

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https://github.com/remarkablemark/janephp-template

🌱 JanePHP template

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Last synced: 13 Apr 2026

https://github.com/soenneker/soenneker.x.openapiclient

A X (twitter.com) .NET client generated from their OpenAPI schema, updated daily

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https://github.com/vzsoares/openapi-swagger-portal

Awesome OpenAPI/Swagger documentation portal 🚀 • Easily display multiple swagger UI's 🤩

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https://github.com/xutyxd/ts-openapi-contract-first-boilerplate

A boilerplate for building contract-first APIs in TypeScript with OpenAPI. Includes OpenAPI definition, compliant server setup, and npm package generation for seamless API development.

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https://github.com/ah00ee/python-league

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https://github.com/nicat-as/balance-notifier

Application for integrating with different openbanking apis of banks and track balance increase and then notify

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https://github.com/alpdr/gindocnic

An OpenAPI 3.1 specification generator for Gin Web Framework

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https://github.com/offlabel-scaffolds/scaffold-fastapi-backend

FastAPI Python backend with SQLAlchemy, Alembic, and OpenAPI

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https://github.com/jonathanscholtes/azure-ai-foundry-databricks-research

Agentic AI solution for exploring and reasoning over Databricks using Azure AI Foundry, Semantic Kernel, OpenAPI, and MCP with full observability and orchestration support.

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https://github.com/orca-scan/orca-scan-openapi

Orca Scan OpenAPI Specification

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https://github.com/pilotak/openapi-typescript-jwt

Express.js OpenAPI 3 typescript JWT boilerplate

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https://github.com/dreamquality/postman-openapi-schema-validator

A Node.js utility for integrating OpenAPI schema validations into Postman collections. Automatically reads OpenAPI specs (JSON/YAML) and applies schema validation scripts to Postman requests, supporting OpenAPI versions 2.0, 3.0.x. Provides detailed console logging for validation results.

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https://github.com/jkawamoto/go-siastats

A Golang client library for siastats.info

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https://github.com/mbari-org/gpdviz

Web-based visualization of geolocated point data streams in real-time

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https://github.com/dernasherbrezon/jsp-openapi

JSP tag for rendering openapi

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https://github.com/markrosemaker/errpath

Utilities for creating and managing detailed error paths, allowing users to construct error messages that include the full path to the error. Useful when traversing complex data structures such as JSON or YAML files. Example: components.schemas["Pet"].allOf[0]: invalid schema

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Last synced: 14 Apr 2026

https://github.com/alexandrelamberty/nidus-api-spec

:diamond_shape_with_a_dot_inside: Home Automation and Monitoring API Specification using the OpenAPI standard.

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https://github.com/evilurge/openapivalidator

Test your openapispecs

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https://github.com/sonaiengine/api-to-tools

Universal library that converts any API (OpenAPI, WSDL/SOAP, GraphQL, gRPC) into LLM-callable tool definitions

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https://github.com/intellifi-nl/brain-rest-api-spec

Intellifi Brain REST API spec

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https://github.com/mizcausevic-dev/kinetic-api-gateway

Node.js + Express REST API for B2B SaaS lead scoring, campaign visibility, and revenue workflow automation

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https://github.com/mizcausevic-dev/content-workflow-intelligence-platform

TypeScript platform for editorial workflow intelligence, publishing readiness scoring, bottleneck visibility, and content operations governance.

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

PHP client SDK for the Mail-in-a-Box API.

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https://github.com/belgif/openapi-time

OpenAPI data types for time

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https://github.com/hmarcuzzo/fastgear

Python library for FastAPI, boosting SQLAlchemy and Redis with pagination, error handling, and session management.

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https://github.com/mauricio-dolinski/ferramentas-api

API com ferramentas para validação e geração de documentos comuns no Brasil. - Tecnologias: Quarkus, Swagger, OpenAPI, Java

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Last synced: 20 Jan 2026

https://github.com/soenneker/soenneker.grafana.openapiclientutil

A thread-safe utility for obtaining Grafana's OpenApiClient singleton.

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Last synced: 13 Jun 2026

https://gitlab.com/vuphuong87/symfony-openapi-schema-validator

The OpenAPI schema validator wrapper for Symfony HTTP Request / Response object

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Last synced: 24 Oct 2025

https://github.com/soenneker/soenneker.postman.converter

A utility library that converts Postman schemas to OpenApi

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https://github.com/sugamkuber/auto-mailer

Mailing Automation Task with google oauth & open ai

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Last synced: 19 Apr 2026

https://github.com/soenneker/soenneker.rebrickable.clientutil

An async thread-safe singleton for Rebrickable OpenApiClient

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Last synced: 26 Jun 2026

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

A thread-safe singleton HttpClient for Wise's OpenAPI integration.

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Last synced: 17 Jun 2026

https://github.com/eai04191/apidom-validate-cli

CLI validator for ApiDOM files using the ApiDOM Language Service.

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Last synced: 24 Jan 2026

https://github.com/andrii-hrechyn/auto-documentation

Auto Documentation is a library for generating API documentation for Laravel.

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Last synced: 06 Feb 2026

https://github.com/edmartt/workorders

Microservice for handling work orders and when are done send event through Redis streams

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https://github.com/youhad08/e-bank-backend-springboot

Digital banking system backend developed with Spring Boot. Includes customer and account management, operations, and REST APIs.

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https://github.com/foorester/cook

Recipe manager

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Last synced: 30 Jan 2026

https://github.com/wherejuly/60-1-oas-markdown-merger

Expand the OpenAPI JSON specification `description` fields by merging the arbitrary markdown files translated to HTML.

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Last synced: 07 Feb 2026

https://github.com/soenneker/soenneker.dnsimple.contacts

An async thread-safe singleton for DNSimple OpenApiClient's Contacts API

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Last synced: 23 Apr 2026

https://github.com/fvillanuevape/spring-boot-openapi-oke

Article API Spring Boot and Kubernetes - Spring Boot Open API OKE, es una demo sobre como usar los servicios de kubernetes de oracle cloud para desplegar una API desarrollado en spring boot y de igual manera la documentación de la API usando OAS 3.0.0.

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Last synced: 02 Feb 2026

https://github.com/dacr/counters

Just count things with API

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Last synced: 26 Feb 2026

https://github.com/soenneker/soenneker.notion.openapiclientutil

A thread-safe utility for obtaining Notion's OpenApiClient singleton.

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Last synced: 02 Jul 2026

https://github.com/warfox/products-spring-kotlin-cljs

Fullstack App with Spring Kotlin backend and Clojurescirpt frontend

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Last synced: 15 Apr 2026

https://github.com/soenneker/soenneker.telnyx.clientutil

An async thread-safe singleton for the Telnyx OpenApiClient

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Last synced: 06 Jun 2026

https://github.com/samgutentag/pyaudius

A Python Implentation of the Audius API

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https://github.com/cicatriiz/cdisc-library-mcp-server

DXT-packaged MCP server for the CDISC Library (discovery, Biomedical Concepts, SDTM Dataset Specializations)

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Last synced: 16 Apr 2026

https://github.com/tsegreto/openapi-llm-docs

Convert OpenAPI specifications to LLM-friendly documentation format.

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Last synced: 12 Feb 2026

https://github.com/boywithkeyboard-archive/openapi-vultr

An OpenAPI client for Vultr's API written in TypeScript.

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Last synced: 13 Feb 2026

https://github.com/jeffhuen/tiger_stripe

A Stripe library for Elixir — typed SDK, client, and webhooks generated from the official OpenAPI spec.

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Last synced: 17 Feb 2026

https://github.com/mathrix-education/openapi-processor

Template Engine for YAML-based OpenAPI specifications.

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Last synced: 15 Feb 2026

https://github.com/g-nelson1/tiingo-openapi

Tiingo OpenAPI Doc

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Last synced: 01 Mar 2026

https://github.com/viniciusferreira7/bun-auth

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Last synced: 16 Apr 2026

https://github.com/soenneker/soenneker.highlevel.clientutil

An async thread-safe singleton for HighLevel OpenApiClient.

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Last synced: 10 Jun 2026

https://github.com/murilobeltrame/springjerseydemoapi

Demo API built with Spring and Jersey

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Last synced: 16 Apr 2026

https://github.com/davidsteiner/orator

Rust server stub generation from OpenAPI 3.1 specs

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Last synced: 07 Apr 2026

https://github.com/soenneker/soenneker.rebrickable.client

A .NET thread-safe singleton HttpClient for Rebrickable

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Last synced: 10 Jun 2026

https://github.com/wilson0x4d/tornado-openapi

..an OAS-generation library for Tornado.

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Last synced: 05 Mar 2026

https://github.com/inyourtime/fastify-multiple-swagger

A Fastify plugin for generating multiple Swagger/OpenAPI documents using @fastify/swagger.

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Last synced: 25 Apr 2026

https://github.com/thavarshan/orthrus

⛨ A production-ready, multi-tenant JWT authentication service built with Symfony 7.3 and PHP 8.2+.

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Last synced: 02 Apr 2026

https://github.com/soenneker/soenneker.sonarr.openapiclient

A .NET client generated from the Sonarr OpenAPI schema, updated daily

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Last synced: 02 Apr 2026

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

A thread-safe singleton HttpClient for OpenAI's OpenAPI integration.

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Last synced: 07 Jun 2026

https://github.com/trivigy/oas

Golang OpenAPI Specification definitions

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Last synced: 17 Apr 2026

https://github.com/AlexDemure/gadfastopenapi

Customize and override OpenAPI schema details in FastAPI with ease

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Last synced: 17 Apr 2026

https://github.com/syucream/holaspirit-client-typescript-fetch

A TypeScript client for the Holaspirit API, generated from the official OpenAPI specification using openapi-fetch.

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

A .NET client generated from the ElevenLabs OpenAPI schema, updated daily

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Last synced: 20 May 2026

https://github.com/soenneker/soenneker.quo.openapiclientutil

A thread-safe utility for obtaining Quo's OpenApiClient singleton.

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Last synced: 10 Jun 2026

https://github.com/jcs090218/swagger-it

Automatically generate the swagger.io yaml file for your project.

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Last synced: 17 Apr 2026

https://github.com/soenneker/soenneker.gitlab.openapiclientutil

A thread-safe utility for obtaining GitLab's OpenApiClient singleton.

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Last synced: 06 Jun 2026

https://github.com/rehanvdm/pets-frontend

Part of a blog series: Improve Developer Experience (DX) by publishing an API SDK - a CDK Serverless example

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Last synced: 17 Apr 2026

https://github.com/soenneker/soenneker.persona.openapiclient

A .NET client generated from the Persona OpenAPI schema, updated daily

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https://github.com/damirscorner/20250314-dotnet-api-file-upload

Sample project for 'Web API file upload with metadata' blogpost

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https://github.com/soenneker/soenneker.neon.openapiclientutil

A thread-safe utility for obtaining Neon's OpenApiClient singleton.

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https://github.com/vicjun22/contract-first-with-swagger_spring-boot

This repository demonstrates how to integrate Swagger into a Spring Boot project to generate API documentation.

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https://github.com/eukolos/product-service

Basic API for using microservices' cases

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https://github.com/l-ogorzalek/bookstore-java

Final Spring project for university course.

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https://github.com/nsubrahm/openshift-demo-apis

API documentation for OpenShift demos

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https://github.com/mrjoops/api-project-template

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https://github.com/maciek1839/spring-cloud-demo

A simple Spring Cloud demo project - Eureka, Feign, Ribbon ...

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https://github.com/lc-semba-ryuichiro/sample-gradle-oas-generator-server

OpenAPI Generator (Gradle Plugin) を使ったサーバーサイドの自動生成を検証するリポジトリ

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https://github.com/csini/letsgo-blog

A small microservice written in golang. It has a REST api generated from openapi yaml and reads/writes data from database with ORM based gorm. The project uses maven (mvnGolang)

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