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/tsegreto/openapi-llm-docs

Convert OpenAPI specifications to LLM-friendly documentation format.

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https://github.com/soenneker/soenneker.github.filestore

A high-level file system utility for GitHub repositories, built on the GitHub OpenAPI client. Supports reading, writing, deleting, listing, and checking file existence via the GitHub Contents API.

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

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

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https://github.com/rudeboyone/tarefastest

API RESTful de gerenciamento de tarefas

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https://github.com/nikothomas/ribbon-health

An API client for interacting with the data provided by Ribbon Health, including information about healthcare providers, locations, insurances, and more.

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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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https://github.com/gopad/gopad-js

Javascript SDK for Gopad

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

Tiingo OpenAPI Doc

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

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

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https://github.com/daymade/microservices-management-platform

Service Catalog Demo is a microservice API management platform written using golang and vue, where users can manage services and versions through a frontend dashboard.

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https://github.com/spanpanel/span-panel-api

Python API client for SPAN Panel - provides async interface to control circuits, monitor power usage, and manage panel settings

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

An async thread-safe singleton for HighLevel OpenApiClient.

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https://github.com/sirerun/mint

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https://github.com/soenneker/soenneker.cloudflare.openapi.suite

A comprehensive suite of utility libraries for Cloudflare's OpenApi operations

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https://github.com/dougborg/stocktrim-openapi-client

Production-ready Python client for the StockTrim Inventory Management API with transport-layer resilience

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

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

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

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https://github.com/aihxp/sumac

Sumac: bring out what your tools can do — one Rust binary to bridge skills, MCP, and APIs. Run any skill as an MCP server, any MCP server as a CLI, and any API from your terminal.

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https://github.com/soenneker/soenneker.resend.openapi.suite

A comprehensive suite of utility libraries for Resend's OpenApi operations

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https://github.com/kineticcookie/archivarius

Documentation renderer based on sbt-paradox

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

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

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https://github.com/nigussolomon/nest-util

Supercharge NestJS development with a generic CRUD engine, automated CLI generator (ncnu), and essential utilities. Features deep TypeORM integration, automated Swagger/OpenAPI documentation, and rapid boilerplate generation.

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

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

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https://github.com/omermecitoglu/tsmancer

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

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

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

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

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https://github.com/doodlescheduling/swagger-hub-controller

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

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

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

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https://github.com/pchchv/strava-cycling-tool

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https://github.com/zoobz-io/rocco

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

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

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

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https://github.com/zbkazi/auth

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

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

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

API documentation for OpenShift demos

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https://github.com/mimikos-io/mimikos

A deterministic, OpenAPI-driven mock server that generates realistic API responses with zero manual config.

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https://github.com/neurocad-eu/neurocad-api-docs

Versioned public API contracts, schemas, integration guides, and SDK references for NeuroCAD.

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https://github.com/jrjsmrtn/pve-openapi

OpenAPI 3.1 specs for the Proxmox VE API (PVE 7.0-9.1) — extracted from official pve-docs packages

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

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

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

OpenAPI specification for Woosmap Platform

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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https://github.com/shearichard/flask-for-redux-testing

Flask based RESTFUL API to use for testing Redux Toolkit against.

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https://github.com/oxhq/oxcribe

Runtime-first Laravel package that enriches routes with Oxinfer static analysis

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Last synced: 23 Apr 2026

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

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

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Last synced: 27 May 2026

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

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

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

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

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

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

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

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

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Last synced: 06 Jun 2026

https://github.com/amandeepkaur1804/weather

This web app fetches and displays real-time weather data for any city using the OpenWeatherMap API with a dynamic UI.

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https://github.com/ghchinoy/openapi-from-grpc

gRPC service with autogenerated OpenAPI spec via gRPC Gateway for REST/HTTP

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https://github.com/huksley/swagger-explorer

Run Swagger UI locally against a folder of OpenAPI or Swagger specifications

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Last synced: 26 Apr 2026

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

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

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https://github.com/ricardozanini/openapi-codegen-poc

Proof Of Concept of OpenAPI Generator Embedded Codegen with Serverless Workflow SDK

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Last synced: 28 Apr 2026

https://github.com/mpreu/husqvarna-api-clients

Autogenerated API clients for Husqvarna APIs.

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https://github.com/bamp/arrobavolver-api

API foundation for end-to-end product prototypes (contracts, integrations, flows)

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https://github.com/n8n-code/n8n-nodes-uniswap

Uniswap decentralized trading protocol for automated liquidity provision and token swaps across multiple blockchains

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https://github.com/headwindz/public-holidays

public holidays open apis

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https://github.com/fs-frost/openapi2go

CLI tool to generate Go code from OpenAPI specifications.

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https://github.com/mike-brady/flask-apispec-tools

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https://github.com/av/tools

Docker image for installing and running tools for LLM agents (MCP, OpenAPI, UVX, NPX, Python)

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Last synced: 29 Apr 2026

https://github.com/oamerge/oamerge

Merge and share OpenAPI endpoints and schemas.

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https://github.com/mahmudindev/oreno-comicking-openapi-python

Python-based generated ComicKing OpenAPI client.

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https://github.com/woile/drf-serializers

exploring DRF Serializers with OpenAPI

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https://github.com/iamyasinkaya/morwinyon

Morwinyon, geliştiricilere var olan .NET yazılım projelerine ek işlevsellikler kazandırmak için tasarlanmış bir NuGet paketi uzantısıdır.

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https://github.com/apisyouwonthate/openapinotswagger.com

Next.js repo for openapinotswagger.com

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https://github.com/yinchi/openapi-cli

CLI for working with APIs using the OpenAPI specifications

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https://github.com/daimaou92/gate

Build REST APIs in Golang

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https://github.com/90dy/ts-openapis

Typescript pre-generated OpenAPIs clients

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https://github.com/haryoiro/oasc

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https://github.com/edavis25/crypto_history_api

API for retrieving personally scraped historic crypto price data from various exchanges.

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

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

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

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

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

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

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

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

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https://github.com/instantan/web

Build robust web applications with pure Go. No external dependencies, just the power of the standard library.

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https://github.com/nikitadev-work/pr-manager-service

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https://github.com/duquejo/quarkus-tokencache-microservice

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https://github.com/nebil175/lcu_dumper

🔍 Discover and extract League Client Update data easily with LCU Dumper, a fast, cross-platform CLI that outputs selected API endpoints to JSON files.

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