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/libninjacom/mangadex-rs

mangadex client, generated from the OpenAPI spec

mangadex openapi rust

Last synced: 13 May 2026

https://github.com/libninjacom/petstore-go

Petstore client, generated from the OpenAPI spec

golang openapi petstore

Last synced: 14 May 2026

https://github.com/grofei/ps-bconnectopenapi

Powershell module for the baramundi OpenAPI Interface. This module is NOT a product of baramundi software GmbH.

automation baramundi bconnect openapi

Last synced: 14 May 2026

https://github.com/sla-ppy/gocusign

[F] Backend integration for (docu)ment (sign)ing made with (Go)

backend curl get golang http openapi post

Last synced: 14 May 2026

https://github.com/swayam-mishra/blobfish-mcp

Any OpenAPI spec. Zero config. Claude-ready. MCP server that turns any REST API into Claude-callable tools instantly.

ai anthropic claude llm mcp openapi postman swagger

Last synced: 13 Jun 2026

https://github.com/dhslegen/disciplined-delivery-toolkit

Claude Code plugin: superpowers discipline + toB delivery governance — 5-station spine (need→contract→implement→verify→deliver), Iron Law file-fact enforcement, SSoT accountability, ROI reporting. Zero deps.

ai-engineering claude-code claude-code-plugin delivery governance openapi subagents superpowers tdd tob

Last synced: 15 Jun 2026

https://github.com/h0rv/zchema

Typed, validated JSON APIs and OpenAPI 3.1 for Zig's std.http.Server

api http json jsonschema openapi zig zig-package

Last synced: 16 Jun 2026

https://github.com/opastorello/unifi-api-docs

Espelho automatico e versionado da documentacao oficial da API UniFi (Site Manager, Network, Protect, Mobility) - OpenAPI + Markdown, atualizado diariamente por CI

api api-docs api-documentation cloud-connector mcp openapi rest-api site-manager ubiquiti unifi unifi-network unifi-protect

Last synced: 19 Jun 2026

https://github.com/libninjacom/primer-rs

primer client, generated from the OpenAPI spec

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https://github.com/hurricanemark/aspnetwebapi

aspnet core webapi & openapi swaggerui

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

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

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Last synced: 25 Jun 2026

https://github.com/subzeroid/hikerapi-mcp

MCP server for HikerAPI — 105+ Instagram API tools auto-generated from the OpenAPI spec. Use from Claude Code, Claude Desktop, Cursor, OpenAI Codex, Zed, Windsurf.

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Last synced: 26 Jun 2026

https://github.com/davidmosiah/delx-agent-utilities

Open-source stateless utility tools for AI agents: URL, DNS, TLS, OpenAPI, x402, JWT, CSV/JSON, cron, and composite reports.

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Last synced: 27 Jun 2026

https://github.com/sukramj/openccu-loom-types

Generated Pydantic v2 models and enum types for the openccu-loom REST + WebSocket contract

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

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

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

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

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

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

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

Resilient-ready external token cacheable service Proof of concept

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https://github.com/srinitude/effect-json-schema

Tiny Effect Schema adapter for Standard JSON Schema V1

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https://github.com/hyesungoh/cultural_heritage_administration_api

문화재청 open api 사용 with Python

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https://github.com/aydanrahimova/linkedinclone

This LinkedIn clone replicates key features of the professional networking platform, allowing users to manage profiles, create posts, comment, react, connect with others, follow organizations, and explore job opportunities. Advanced features include creating organizations and applying for jobs.

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https://github.com/codewiththomas/fom-project-server

As a project in college we are setting up a node.js webapi using express.js as framework and SQLite as database.

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https://github.com/lsegg/delilah-resto

This project proposes the creation of an online ordering system for a restaurant.

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https://github.com/nasrmohammad4804/ticket-supporting-system

test project at least feature of ticket management

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https://github.com/shivam-dhir/unified-payment-gateway

A scalable backend microservice built with Spring Boot to handle secure online payments, supporting multiple payment gateways, real-time processing, and multi-currency transactions with high availability and security.

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Last synced: 05 May 2026

https://github.com/ferror/openapi-coverage

Symfony Command that calculates Open API documentation coverage

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https://github.com/leozqin/laridae

A registry and proxy server for agentic tool-calling

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https://github.com/pagarciasima/controlgastos-backend

Proyecto de control de gastos (Spring boot)

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https://github.com/toobeeh/tirith

Angular & NEST fullstack application for skribbltypo website & dashboard

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Last synced: 06 May 2026

https://github.com/rashidintheworld/file-document-restapi

This project contains a collection of services that perform step-by-step PDF creation. It allows users to convert any text in PDF format by setting font, color and RGB properties through a single API. I shared the project on GitHub and am open to development.

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Last synced: 07 May 2026

https://github.com/openapi-processor/openapi-processor-json

converts an openapi yaml file to an openapi.json file

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https://github.com/romanow/aggregator-by-tags

OpenAPI aggregator by Tags

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https://github.com/not-three/api

The !3 api, written in typescript, with the NestJS framework.

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https://github.com/gridaco/postgrest-openapi

JS postgREST OpenAPI Spec parser

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https://github.com/pixxiti/oax

Open API Spec validation and client generation tooling for Typescript

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Last synced: 08 May 2026

https://github.com/soenneker/soenneker.coinbase.openapiclients.cdp

A Coinbase .NET client generated from their OpenAPI schema, updated daily

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Last synced: 08 May 2026

https://github.com/met-dev/gamesellingproject

Game Sales Project Backend Side. Tech Stack= ASP.Net, EntityFramework, Code First

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https://github.com/toliyansky/openapi-spring-generator-example

Example for dev.to article

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https://github.com/abdallahsaber065/openapi-tester-frontend

A clean, user-friendly frontend application for testing any OpenAPI-compliant API dynamically. This tool loads your API specification from OpenAPI JSON files or URLs and provides an intuitive interface for testing all endpoints without needing external tools like Postman.

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Last synced: 09 May 2026

https://github.com/axel7083/electron-vite-react-openapi-generator

electron template using openapi-generator for IPCs communication

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Last synced: 09 May 2026

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

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

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Last synced: 01 Jun 2026

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

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

client csharp dotnet kiota national nws nwsopenapiclientutil openapi openapiclientutil service singleton util weather

Last synced: 14 May 2026

https://github.com/neelagarwal98/modular-equity-research-system

A prototype application that automates financial equity research using a coordinated multi-module architecture. It combines the power of OpenAI's GPT-3.5-turbo, Serper API for Google search and RAG (Retrieval-Augmented Generation) to deliver accurate, well-sourced financial analysis reports with confidence scoring.

equity google-serp-api langchain llm openapi rag streamlit

Last synced: 06 Apr 2026

https://github.com/ankitboghra/openapi-watchgod-merger

Merge OpenAPI and Watchgod responses to track latest status of a deposit/withdraw transaction on Ethereum Chain and Polygon Chain.

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Last synced: 09 May 2026

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.

asyncapi openapi symfony-bundle

Last synced: 09 May 2026

https://github.com/flkt-crnpio/fastapi-sandbox

Pruebas para crear la documentacion de una API bajo los protocolos de OpenAPI utilizando el framework de FastAPI

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Last synced: 10 May 2026

https://github.com/grparry/swaggertomcp

🔁 Convert Swagger/OpenAPI specs into Model Context Protocol (MCP) tool definitions for agentic AI compatibility.

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Last synced: 11 May 2026

https://github.com/pidelport/onfido-openapi-rust

Onfido OpenAPI client for Rust

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Last synced: 11 May 2026

https://github.com/saturninoabril/mattermost-openapi-insomnia

Mattermost Open API for Insomnia

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Last synced: 11 May 2026

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

Gopad: SDK for Python

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Last synced: 11 May 2026

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

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

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Last synced: 16 May 2026

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

An async thread-safe singleton for X OpenApiClient

clientutil csharp dotnet httpclient openapi singleton twitter util x xclientutil

Last synced: 11 Jun 2026

https://github.com/greyorange-labs/rebar3_openapi

Rebar3 plugin for bidirectional OpenAPI and Erlang/Cowboy code generation

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Last synced: 13 May 2026

https://github.com/libninjacom/bump-rs

Bump.sh client, generated from the OpenAPI spec

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Last synced: 14 May 2026

https://github.com/gibtang/agent-utils

One API key. Agent-native utilities for AI agents. File hosting, PII redaction, dead letter queues, and more.

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Last synced: 12 Jun 2026

https://github.com/client-api/pmg-php

PHP SDK for the Proxmox Mail Gateway (PMG) API.

anti-spam api-client composer guzzle mail-gateway openapi openapi-generator php pmg proxmox proxmox-mail-gateway sdk

Last synced: 13 Jun 2026

https://github.com/marvinvista/agentic-ready

Audit whether agents can find, call, trust, price, and defend your B2B product.

agents ai-agents b2b developer-tools docs llms-txt mcp openapi

Last synced: 14 Jun 2026

https://github.com/burin-labs/harn-openapi

Pure-Harn OpenAPI 3.1 parser and SDK codegen helpers

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Last synced: 15 Jun 2026

https://github.com/bilal-fazlani/mockserver-openapi-scenario-extension

A MockServer expectation initializer that turns OpenAPI x-mockserver-scenarios extensions into executable MockServer expectations at startup.

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Last synced: 16 Jun 2026

https://github.com/monkeyscloud/monkeyslegion-openapi

Automatic OpenAPI 3.1 specification generator and documentation middleware for the MonkeysLegion framework.

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Last synced: 17 Jun 2026

https://github.com/bavix/gripmock-openapi

GripMock OpenAPI Specification

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Last synced: 02 Apr 2026

https://github.com/jathanism/okapi

OpenAPI 3.x client and CLI generator for Go

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Last synced: 20 Jun 2026

https://github.com/griptape-ai/griptape-cloud-python-client

Python client for Griptape Cloud APIs

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Last synced: 24 Jun 2026

https://github.com/osisdie/dotnet-webapi-cqrs-boilerplate

Production-ready .NET WebAPI framework (CoreFX) with MediatR (CQRS), FluentValidation, JWT auth, OpenAPI/Swagger, email notifications (MailKit), Docker multi-stage build, and xUnit testing. Multi-targets net8.0 + net10.0.

aspnetcore automapper boilerplate clean-architecture corefx cqrs docker dotnet dotnet10 dotnet8 fluentvalidation healthcheck jwt mailkit mediatr openapi swagger webapi xunit

Last synced: 25 Jun 2026

https://github.com/hmartiins/mvp-fullstack-backend-puc-rio

Controle de Gastos Pessoais - MVP Puc RIO

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Last synced: 26 Jun 2026

https://github.com/techinpark/jira-cli

Open source Jira CLI for Jira Cloud REST API v3. Manage issues, comments, transitions, worklogs, and JQL from the terminal or LLM agents.

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Last synced: 26 Jun 2026

https://github.com/t-huyeng/zensus-gis-nrw-api

Zensus 2011 Einwohnerzahlen API

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Last synced: 25 Mar 2025

https://github.com/zejnilovic/gh-openapi-preview

A Chrome extension that adds an OpenAPI Preview tab to GitHub’s file view for OpenAPI specs

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Last synced: 08 May 2026

https://github.com/moontai0724/openapi-types

TypeScript types for OpenAPI specification. (v3.1 only now)

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Last synced: 27 Jan 2026

https://github.com/renatompf/poc_spring_elasticsearch

This project is a Spring Boot application that demonstrates the integration of PostgreSQL and Elasticsearch for managing and searching product data.

elasticsearch java kafka openapi postgresql spring-boot

Last synced: 13 Apr 2026

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

Retrieves OpenAPI specs from GitHub repos.

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Last synced: 18 Jan 2026

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

QuickWrench backend API written using Django ⚡

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Last synced: 13 Apr 2026

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

Demo Web Listing Movies with Open Movie API 🎫

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Last synced: 17 Apr 2026

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

🌱 JanePHP template

composer janephp openapi petstore petstore-api php php-library php-sdk swagger template

Last synced: 13 Apr 2026

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

FastAPI test project using Poetry as interpreter.

api api-rest api-restful backend fastapi markdown openapi poetry poetry-python pycharm pydantic python rest rest-api restapi restful-api restfulapi starlette swagger-ui uvicorn

Last synced: 12 Apr 2026

https://github.com/kacperfaber/codziennemotto_pl_server

🎈 Spring API for CodzienneMotto.pl. Allows you to create a lists of daily quotes, invite users to join your list and schedule quote to specific day 🎈

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Last synced: 13 Apr 2026

https://github.com/cardboardrobots/go-openapi

OpenApi generator for Go

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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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Last synced: 05 Feb 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/apprexp/govsg2oas

A project which aims to convert existing government public-facing APIs into the OpenAPI 3 specs.

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https://github.com/maheshshinde9100/opdheal

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https://github.com/scm-manager/scm-breakingchange-maven-plguin

Proof of concept for breaking api change detection

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https://github.com/angeloavv/dart_openapi_generator

OpenAPI 3.x → Dart code generator for Flutter and Dart

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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/hozipitol/artifex

Artifex is a full-stack AI image generation application that allows users to create unique images from text prompts using OpenAI's DALL-E model. The project demonstrates advanced web development and AI integration skills.

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https://github.com/cumulocity-iot/cumulocity-swagger-openapi

Swagger/OpenAPI RESTful API for Cumulocity

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https://github.com/astroway/astroway-python

Official Python SDK for the AstroWay API — sync + async clients, Pydantic models, type-safe, retry-aware, generated from OpenAPI 3.1. Natal charts, synastry, transits, Vedic, Tarot, Human Design, AI horoscopes. Python 3.10+, py.typed.

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