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/evilfreelancer/openchill

Prototype of Swagger / OpenAPI PHP client generator

client-generator openapi php swagger

Last synced: 28 Apr 2026

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

An async thread-safe singleton for Loops OpenApiClient

client clientutil csharp dotnet httpclient loop loops loopsclientutil openapi util

Last synced: 11 Jun 2026

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

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

client composio composioopenapiclientutil csharp dotnet kiota openapi openapiclientutil singleton util

Last synced: 06 Jun 2026

https://github.com/soenneker/soenneker.stoplight.openapibundler

A utility library to download and bundle OpenApi specs from Stoplight

bundle csharp dotnet fixing merge openapi openapibundler stoplight stoplightopenapibundler util

Last synced: 29 Apr 2026

https://github.com/elipzis/aping

📲 A simple API Ping tool to feed a Swagger/OpenAPI 3.0 document file, call all paths and record time and responses

api benchmark golang openapi openapi3 ping swagger

Last synced: 29 Apr 2026

https://github.com/fibercrypto/skycoinr

Skycoin client libraries for the R programming language

client-library crypto crypto-library cryptocurrency openapi r r-library rest-api rest-client restapi skycoin swagger swig

Last synced: 29 Apr 2026

https://github.com/nicksp/rest-api-starter

Production-grade REST API starter template

docker-compose drizzle-orm fully-typed hono openapi postgresql scalar

Last synced: 12 Apr 2026

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

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

api client csharp dotnet kiota openapi openapiclient openapiclientutil singleton util wise wiseopenapiclientutil

Last synced: 28 Jun 2026

https://github.com/workloads/pathfinder-openapi-specs

OpenAPI Specs for Pathfinder

arduino esp32 openapi

Last synced: 21 Feb 2026

https://github.com/oamerge/oamerge

Merge and share OpenAPI endpoints and schemas.

api generator merge oamerge openapi

Last synced: 30 Apr 2026

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

Rebar3 plugin for bidirectional OpenAPI and Erlang/Cowboy code generation

api code-generation cowboy erlang openapi rebar3 rebar3-plugin

Last synced: 13 May 2026

https://github.com/thanadolps/swarch_rest

Simple REST API Assignment as part of Chulalongkorn 2110521 Software Architecture course.

openapi poem rest-api rust

Last synced: 30 Apr 2026

https://github.com/kwaytv/hono-steamer-api

⚡ High-performance Steam profile resolver API with MySQL-powered smart caching system | Built with Hono & TypeScript 🚀

hono openapi steam-api typescript

Last synced: 30 Apr 2026

https://github.com/impulse-sw/cc-services

Web services and tools for Impulse

dsl-interpreter http3 json-simd leptos msgpack openapi opentelemetry salvo static-server web-development yaml-configuration

Last synced: 03 Jul 2025

https://github.com/iamyasinkaya/morwinyon

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

caching extension openapi swagger validation versioning

Last synced: 30 Apr 2026

https://github.com/manya7547/insightpdf

web application that enables users to interact with PDF documents using AI-powered chat

clerk-auth drizzle-orm neondb nextjs nodejs openapi s3-bucket stripe-payments typescript

Last synced: 12 Apr 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/moizu991/fullstack-starter-go-fiber

🚀 Build a minimal CRUD web app with Go, Fiber, and PostgreSQL, using Docker and GitHub Actions for a smooth, repeatable development process.

docker docker-compose fiber full-stack go jwt migrations openapi postgresql rest-api testing

Last synced: 12 Apr 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/gibtang/agent-utils

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

agent-tools ai-agents api dead-letter-queue file-hosting human-in-the-loop llm mcp nextjs openapi pii-redaction typescript

Last synced: 12 Jun 2026

https://github.com/duongnguyen321/open-api

Open API for coder, programing

country nestjs openapi

Last synced: 01 May 2026

https://github.com/daimaou92/gate

Build REST APIs in Golang

go golang golang-library golang-package http http-server openapi openapi3 rest rest-api

Last synced: 02 May 2026

https://github.com/mlafeldt/go-launchdarkly

Go client library for the LaunchDarkly REST API

feature-flags feature-toggles golang launchdarkly openapi swagger

Last synced: 02 May 2026

https://github.com/fibercrypto/libdart-skycoin

Skycoin client libraries for Dart

client-library dart dart-library openapi rest-api rest-client restapi skycoin swagger swig

Last synced: 02 May 2026

https://github.com/bts-lasalle-avignon-ressources/api-http-rest

Les API HTTP REST (OpenAPI, Esp32 & Raspberry Pi)

api-rest esp32 openapi raspberrypi

Last synced: 18 Apr 2026

https://github.com/crossevol/hono-starter

drizzle drizzle-orm hono nodejs openapi zod

Last synced: 12 Apr 2026

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.

openapi swagger-ui yaml

Last synced: 02 May 2026

https://github.com/nexys-system/postman-openapi-ui

generate Open API from Postman collection

openapi openapi3 postman

Last synced: 02 May 2026

https://github.com/ahilke/openapi-microservice-playground

A demo project to showcase and experiment with various OpenAPI technologies in a microservice environment.

graphql microservice nestjs openapi playground

Last synced: 02 May 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/soenneker/soenneker.fastly.httpclients

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

api csharp dotnet fastly fastlyopenapihttpclient httpclient httpclients openapi openapiclient singleton

Last synced: 03 May 2026

https://github.com/timofeev-vadim-96/task-management-system

REST-API CRM-системы управления задачами внутри компании

java junit liquibase mockito openapi postgresql spring swagger-ui

Last synced: 12 Apr 2026

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

Микросервис, который автоматически назначает ревьюеров на Pull Request’ы (PR), а также позволяет управлять командами и участниками.

clean-architecture go golang http openapi postgresql

Last synced: 06 May 2026

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

Resilient-ready external token cacheable service Proof of concept

java openapi quarkus redis

Last synced: 03 May 2026

https://github.com/apocys/mcp-connector-platform

Transform OpenAPI documentation into hosted MCP servers with governance controls and Gemini AI safety review

ai-safety gemini governance mcp openapi

Last synced: 18 Apr 2026

https://github.com/bizrockman/modelcontextstandard

A minimal, protocol-agnostic standard to connect LLMs like drivers with external tools using existing APIs and formats like OpenAPI, HTTP, AS2, or CAN-Bus. No custom stacks. Just structured function calls.

agent-framework ai-tools design driver fastapi function-calling integration llm llmos llms mcp mcs openapi protocol

Last synced: 04 May 2026

https://github.com/acunningham-ship-it/mcpforge

Auto-generate Model Context Protocol (MCP) servers from any API in seconds — works with Claude Desktop, Cursor, and any MCP-compatible AI tool

ai-tools claude code-generation developer-tools fastmcp llm mcp model-context-protocol ollama openapi

Last synced: 15 Jun 2026

https://github.com/hyesungoh/cultural_heritage_administration_api

문화재청 open api 사용 with Python

openapi python3 textreader

Last synced: 04 May 2026

https://github.com/rocket-org-imdeepmind/rocketswagger

RocketSwagger is a hosted Swagger UI instance that allows users to visualize and interact with OpenAPI documentation.

openapi swagger swagger-ui

Last synced: 06 Mar 2025

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

readme client, generated from the OpenAPI spec.

openapi readme rust

Last synced: 04 Sep 2025

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.

api express node openapi sqlite3 swagger webapi

Last synced: 04 May 2026

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

Postman client, generated from the OpenAPI spec

golang openapi postman

Last synced: 04 May 2026

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

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

ai api csharp dotnet httpclient httpclients openapi openapiclient openhands openhandsopenapihttpclient singleton

Last synced: 09 Jun 2026

https://github.com/p-fruck/rt-openapi

Deterministic OpenAPI spec generation for RequestTracker REST 2.0 API

openapi request-tracker rt

Last synced: 16 Jun 2026

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

test project at least feature of ticket management

flyway-migrations hibernate-jpa jwt-authentication openapi postgresql spring-boot spring-security

Last synced: 05 May 2026

https://github.com/rickyli79/egg-openapi-router

init `router` and connect `controller` by Openapi-doc. validate the request and response by Openapi-doc

egg egg-plugin eggplugin openapi route schema valid

Last synced: 05 May 2026

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

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

open-api openapi php php-framework

Last synced: 17 Jun 2026

https://github.com/wasabina67/fastapi-react-todo

FastAPI React Todo

fastapi openapi openapi-typescript react reactjs todo todo-app type-safe typescript vite

Last synced: 18 Jun 2026

https://github.com/psmyrdek/express-openapi-typescript

Example app with express, typescript and openapi-ts

express openapi typescript

Last synced: 12 Apr 2026

https://github.com/alcandev/book-inventory-react-vite-nest-postgres

Full-stack book inventory management system using React + Vite (frontend) and NestJS + PostgreSQL (backend). Features JWT auth, advanced filtering (incl. availability), pagination, CSV export, auditing, Swagger docs, image upload with Multer (local storage), and Docker Compose deployment.

auditing csv-export docker docker-compose file-upload filtering jest jwt multer nestjs nginx openapi pagination postgresql react sequelize spa swagger typescript vite

Last synced: 09 Apr 2026

https://github.com/dieperid/bucket-adapter

Bucket Adapter repository for BI1.

docker java openapi swagger-ui

Last synced: 22 Jan 2026

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

primer client, generated from the OpenAPI spec

openapi primer rust

Last synced: 20 Jun 2026

https://github.com/mizcausevic-dev/vapor-saas-billing-engine

Swift Vapor billing engine for subscription lifecycle, proration, dunning, and replay-safe webhook idempotency.

backend billing finance-ops idempotency openapi saas server-side-swift subscription-billing subscriptions swift swift-server vapor webhooks

Last synced: 01 Jun 2026

https://github.com/mizcausevic-dev/webhook-ingestion-pipeline

Webhook Ingestion Pipeline

backend event-driven express nodejs openapi swagger typescript webhooks

Last synced: 01 Jun 2026

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

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

backend content-operations editorial-workflows express nodejs openapi seo-governance typescript

Last synced: 01 Jun 2026

https://github.com/mizcausevic-dev/partner-lead-distribution-engine

TypeScript platform for partner lead routing, territory governance, SLA-aware distribution, and attribution-conscious channel operations.

backend channel-sales express lead-routing nodejs openapi partner-operations revenue-operations typescript

Last synced: 01 Jun 2026

https://github.com/jlarmstrongiv/bunny-sdk-openapi

OpenAPI Specification for bunny.net 🐰

bunnycdn bunnynet openapi openapi-specification openapi3 sdk

Last synced: 16 Oct 2025

https://github.com/piyush06singhal/weather_app

A simple weather app that provides real-time weather information for any location. Built with HTML, CSS, and JavaScript, it fetches weather data from an API and displays current temperature, humidity, wind speed, and more.

api css html javascript openapi openweather-api webdesign webdevelopment

Last synced: 19 Apr 2026

https://github.com/astoria-gouv/diplomatie-website

javascript nodemon openapi talwindcss typescript vite yarn

Last synced: 13 Apr 2026

https://github.com/buonzz/ph-locations-api

REST API for serving Cities, Barangays, Provinces and Regions in Philippines

dataset geolocation nodejs-server openapi philippines philippines-json rest

Last synced: 27 Jan 2026

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

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

ai-agent anthropic api-crawler api-discovery claude function-calling graphql grpc llm llm-tools mcp mcp-server nexacro openapi playwright python soap swagger tool-calling wsdl

Last synced: 15 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.

api home-automation home-monitoring openapi specification yaml

Last synced: 13 Oct 2025

https://github.com/livingdocsio/openapi

OpenAPI (Swagger) spec for Livingdocs Public API

openapi openapi-specification openapi3

Last synced: 11 Oct 2025

https://github.com/mikeirvingweb/dotnet-open-api-swagger-demo

As demoed at the Dot Net North .NET Conf Local Event in December 2020. A simple overview of Open API and Swagger in .NET

csharp dotnet openapi swagger

Last synced: 16 Apr 2026

https://github.com/allansomensi/printer-supplies-api

A simple REST API using Axum for managing printer supplies, such as toners and drums.

api axum crud docker openapi postgresql printer rust sqlx stock-management swagger-ui

Last synced: 11 Oct 2025

https://github.com/asteriskiry/eventsignup_backend

Backend Microservice for Eventsignup System

flyway java-21 openapi postgresql quartz-scheduler spotless-gradle spring-boot springboot3

Last synced: 19 Jan 2026

https://github.com/hmarcuzzo/fastgear

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

api async asyncio fastapi fastgear openapi pydantic python python3 rest sqlalchemy sync web

Last synced: 22 Apr 2026

https://github.com/mermade/openapi2js

Create simple JS SDK from OpenAPI (Swagger) 2.0/3.0.x json/yaml document

openapi openapi3 sdk swagger

Last synced: 15 May 2026

https://github.com/serafin-labs/open-api

Open Api 3 typescript types definition

json-schema openapi typescript typing

Last synced: 05 May 2026

https://github.com/heyymamana/chat-genius

A react-native chatbot application which contains multiple chatbots, designed to offer a human-like interaction to various domains.

bots chatbot chatbots openai openapi react react-components react-hooks react-native

Last synced: 14 Apr 2026

https://github.com/sillyash/swagger-ui-clickable-links-plugin

A Swagger UI plugin that automatically makes URLs in descriptions and examples clickable.

openapi openapi3 plugin rest-api swagger-ui

Last synced: 07 Oct 2025

https://github.com/hello-sycon/sycon-api

Production API documentation for Sycon Cloud (OpenAPI + usage guide)

api-docs industrial-iot openapi redoc swagger-ui sycon

Last synced: 07 Oct 2025

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

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

api client csharp dotnet grafana grafanaopenapiclientutil kiota openapi openapiclientutil singleton util

Last synced: 13 Jun 2026

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

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

openapi symfony validator

Last synced: 24 Oct 2025

https://github.com/soenneker/soenneker.instantly.runners.openapiclient

Automatically updates the Soenneker.Instantly.OpenApiClient package

client csharp diagnostic diagnostics dotnet email instantly instantlyopenapirunner openapi openapiclient openapirunner runners utility

Last synced: 12 Mar 2026

https://github.com/romanow/openapi-generation

Public report about OpenAPI generator template customization

openapi openapi-codegen openapi-generator spring-boot

Last synced: 06 May 2026

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

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

golang openapi openbanking openbanking-api telegram

Last synced: 14 Jan 2026

https://git.hiifong.cc/mirrors/redoc

📘 OpenAPI/Swagger-generated API Reference Documentation

api-documentation documentation-generator documentation-tool hacktoberfest openapi openapi-specification openapi3 openapi31 reactjs redoc swagger

Last synced: 06 Oct 2025

https://github.com/foo-ogawa/micro-contracts

Contract-first vertical slices for TypeScript Web/API systems. OpenAPI as Single Source of Truth with enforceable guardrails.

api-design code-generation contract-first developer-tools microservices monolith openapi typescript

Last synced: 15 Mar 2026

https://github.com/ziul/swagger-operator

A Kubernetes operator that automatically discovers services annotated with OpenAPI/Swagger documentation and aggregates their documentation in a single UI.

containers fastapi helm kopf kubernetes kubernetes-operator openapi python swagger-ui