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/soferai/soferai-openapi
OpenAPI specification for the Sofer.Ai API
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https://github.com/rebecaborges/tsc-base-api
Typescript base api using OpenApi specification rules
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https://github.com/brokenprogrammer/mswg-gen
Custom OpenAPI generator that is used to generate swagger documentation using comments.
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https://github.com/willmeyers/stainless-cli
A work-in-progress command-line utility for interacting with Stainless. This project is in no way affiliated with or supported by Stainless.
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https://github.com/huakunshen/jsr-client
OpenAPI client for jsr API in 3 flavors
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https://github.com/iota-uz/eskiz
IOTA Go client for the Eskiz SMS API — send SMS messages worldwide from your Go applications. Generated with OpenAPI Generator. Includes support for token-based auth, server configuration, and handy utility helpers
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https://github.com/meetup/sbt-openapi
Plugin for generating managed code from OpenAPI specifications
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https://github.com/distfire/xpresskit
Build scalable backend applications with XPressKit, a TypeScript starter kit using Express.js and Prisma ORM. Ideal for RESTful APIs and microservices. 🚀🌟
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https://github.com/genovaempera/vk-auth
Vkontakte Auth implementation based on OpenAPI. A short profile page and a list consisting of 5 friends of the user.
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https://github.com/whisperpine/tt
An OpenAPI driven rust server.
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https://github.com/alexdemure/gadopenapi
Customize and override OpenAPI schema details in FastAPI with ease
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https://github.com/whisperpine/walkie-talkie
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https://github.com/psmyrdek/express-openapi-typescript
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https://github.com/arkanatelecom/arkana-wiki
Oficial Arkana Documentation Wiki ressource
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https://github.com/thanadolps/swarch_rest
Simple REST API Assignment as part of Chulalongkorn 2110521 Software Architecture course.
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https://github.com/nakasar/serverless-api-doc-generator
Generate Documentation API from serverless.yml and JS docstrings.
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https://github.com/alexandrelamberty/macellum
:shopping_cart: Grocery Management System.
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https://github.com/omani/nkn-wallet
A next generation NKN wallet with built-in age encryption and NKN OpenAPI support.
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https://github.com/fibercrypto/skycoinr
Skycoin client libraries for the R programming language
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https://github.com/nourdugha/idn-area
This repository offers a Laravel package that provides detailed Indonesian administrative area data, from provinces to villages. It also includes a database of islands, ensuring comprehensive coverage for developers. 🐙🌍
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https://github.com/go-api-libs/iss-location
Go library for the ISS Current Location. Provides the current location of the International Space Station (including latitude, longitude, and timestamp) and a list of people currently in space. Users are advised to poll the API no more than once every 5 seconds.
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https://github.com/straylittlepunk/deepl
Openapi auto generated deepl api client
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https://github.com/fibercrypto/libdart-skycoin
Skycoin client libraries for Dart
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https://github.com/shekharsikku/hono-scalar
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https://github.com/org-metalib/api-wiser
API Wiser is a tool to automate the generation of complete Maven projects for Java applications directly from your OpenAPI Specification, leveraging OpenAPI Tools to accelerate development and ensure consistency.
api-wiser open-source openapi openapi-codegen openapi-generator openapi-spec openapi-specification openapi3
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https://github.com/developerkunal/openmorph
OpenMorph: Modern CLI & TUI for safe, interactive OpenAPI vendor extension key transforms with colorized diffs, dry-run, and config merging.
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https://github.com/andrecaiado/spring-boot-openapi
Spring Boot demo project that implements API documentation using OpenApi specification and API-first approach
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https://github.com/go-api-libs/remote-ok-jobs
Go library for the Remote OK Jobs API. Remote OK is the #1 remote-only jobs board on the web. It has over 30,000+ remote job listings, adding new ones every day. With this API, now you can build apps with our data feed which covers 80% of remote jobs on the web.
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https://github.com/noi-techpark/opendatahub-swaggerui
Generic Swagger Instance for all Open Data Hub APIs
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https://github.com/allansomensi/tickify-api
A simple API for managing support tickets, with JWT authentication. Made in Rust with Axum.
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https://github.com/pccomponentes/documentation-bundle
The documentation bundle manages the required routes and templates in order to show documentation both in OpenApi and AsyncApi formats.
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https://github.com/vertilia/router
Highly efficient multi-purpose router library
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https://github.com/danhunsaker/openapi2siege
A simple tool to convert your OpenAPI spec(s) to one or more Siege URL files
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https://github.com/bcrikko/openapi-typed-client
Type-safe API client using OpenAPI-like schema
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https://github.com/rihib/www-rihib-dev
[WIP] My Website
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https://github.com/soenneker/soenneker.coinbase.openapiclients.cdp
A Coinbase .NET client generated from their OpenAPI schema, updated daily
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https://github.com/jdifool/tempest-openapi-tools
OpenAPI specification generator and interactive documentation UI for the Tempest framework.
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https://github.com/lambda-feedback/evaluation-function-api
OpenAPI Specification and Validation Schemas for the Evaluation Function API
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https://github.com/alexandrelamberty/sentinel-api-spec
:diamond_shape_with_a_dot_inside: Home Automation and Monitoring IoT Software API Specification.
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https://github.com/alexandrelamberty/hortus-api-spec
:seedling: Gardening Planner API Specification.
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https://github.com/alexandrelamberty/nasa-neows-api-spec
:rock: NASA Near Earth Object Web Service API Specification.
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https://github.com/mako-framework/open-api
Generate routes based on OpenAPI specifications and OpenAPI specifications from code.
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https://github.com/karurochori/base-blockchain
Barebone blockchain node defined by OpenAPI specs with simulation support.
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https://github.com/vinitshahdeo/newrelic-to-postman
Convert New Relic transaction to Open API definition or Postman collection
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https://github.com/rustmailer/rustmailer-core
A Rust-based service for sending and managing emails via SMTP and IMAP, with OpenAPI and gRPC interfaces for modern applications.
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Last synced: 17 Jun 2025
https://github.com/saikiran6694/dall-e-image-generation
Dall -E-AI clone for Image Generation from the given prompt, developed using ReactJS, NodeJS, Express, OpenAI and Cloudinary.
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https://github.com/hw0k-play/openapi-codegen-example
OpenAPI Codegen for TypeScript
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Last synced: 10 Jul 2025
https://github.com/libninjacom/dhl-rs
Dhl client, generated from the OpenAPI spec
Last synced: 28 Jul 2025
https://github.com/idelsink/ikea-openapi
📦 OpenAPI specifications for various IKEA APIs
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https://github.com/kevinoid/appveyor-swagger-java
AppVeyor REST API Client (from Swagger, in Java)
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https://github.com/soenneker/soenneker.swashbuckle.intellenumschemafilter
A Swashbuckle Schema filter for Intellenum
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https://github.com/fern-api/action-postman-sync
A GitHub Action for updating a Postman Collection within a Workspace
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https://github.com/inyourtime/fastify-openapi-serve
Fastify plugin that serve OpenAPI specifications from multiple files as JSON or YAML
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https://github.com/opifexm/sixcitiesserver
The Six Cities Server is a Node.js-based platform offering affordable travel accommodations via REST API and CLI. It features user authentication, dynamic listings, comments, and favorites, utilizing MongoDB for data management.
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https://github.com/belgif/openapi-healthcare
Reusable OpenAPI components in the health care domain
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https://github.com/liamvnastoria/anime-sama
The Anime-Sama Renew Interface Project
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https://github.com/skygenesisenterprise/giteria
The Code Giteria platform
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https://github.com/kronyxgames/lesyria-launcher
The Official Lesyria Launcher App Electron
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https://github.com/skygenesisenterprise/lyscode-website
The LysCode.com Website
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https://github.com/vaelixbank/vaelix-admin
Vaelix Admin local Panel
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https://github.com/sajith4u/gazettequery
RAG based application for analyzing Sri Lankan government gazette files
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https://github.com/libninjacom/bump-rs
Bump.sh client, generated from the OpenAPI spec
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https://github.com/divanvisagie/go-inventory-tracker
An example of a swagger first API for tracking inventory items
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https://github.com/alexandrelamberty/macellum-api-spec
:shopping_cart: Grocery Management System API Specification.
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https://github.com/hochfrequenz/malo-ident-python-models
Pydantic Model Classes for the EDI@Energy MaLo Ident API
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https://github.com/toliyansky/openapi-spring-generator-example
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https://github.com/amerahmed222/mcptools
A command-line interface for interacting with MCP (Model Context Protocol) servers using both stdio and HTTP transport.
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https://github.com/sergey-prudentdev/siteinformant-openapi
Official OpenAPI specification for the Site Informant public JSON API — website uptime, response-time, and SSL monitoring data for developers and AI integrations.
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https://github.com/go-api-libs/ipify
Go library for the ipify API. A simple public IP address API, easy to integrate into any application in seconds.
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https://github.com/bas-kirill/muse-project
[Muse Group] Frontend Academy
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https://github.com/excalibase/excalibase-rest
Auto-generates REST APIs from your database with Spring Boot. It supports CRUD, filtering, relationship expansion, batch ops, and OpenAPI docs — no boilerplate required.
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https://github.com/dkirrane/ibm-openapi-validator-docker
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https://github.com/drakkar-software/pennylane-openapi-clients
Pennylane api client. Only typescript for now
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https://github.com/ningenme/geeq
frontend and backend for geeq webapp
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https://github.com/vernoxvernax/willhaben-api
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https://github.com/grab/grabfood-api-sdk-go
Go API client for GrabFood
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https://github.com/mermade/api-registry
Own-label API registry which powers APIs.guru
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https://github.com/wacko1805/victorian-covid-stats
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https://github.com/stevepartridge/service
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https://github.com/dev-ricks/fleetops-api
Richard Smit: Senior Backend Engineer — Java 17, Spring Boot, OAuth2/JWT, Postgres, CI/CD, System Design
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https://github.com/majid-l/swagger-ui-docs
Swagger UI constructed using an OpenAPI Specification document containing the definition for an e-commerce RESTful API service that I've created.
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https://github.com/curegit/stylegan-fastapi
Simplified Web REST API of the StyleGAN using FastAPI
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https://github.com/tanjubozok/demoprojectserver
Clean Arhictecture, DDD
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https://github.com/experienced-dev/java-starter-template
Java Starter Template
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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.
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https://github.com/driimus/oasin
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