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An open API service indexing awesome lists of open source software.

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.

https://github.com/ucl/isenseflu-openapi

OpenAPI Definitions for i-sense flu API

openapi openapi3 yaml

Last synced: 28 Apr 2026

https://github.com/jimsten/ticketflow

High-concurrency booking/ticketing system (MVP first)

clean-architecture ddd hexagonal-architecture java openapi redis spring-boot

Last synced: 28 Apr 2026

https://github.com/nakasar/serverless-api-doc-generator

Generate Documentation API from serverless.yml and JS docstrings.

api documentation-generator openapi serverless

Last synced: 28 Apr 2026

https://github.com/harmindersinghnijjar/question-translator-python

A Python program to translate GPT-3 answers from English to Punjabi using OpenAI and Google Translate.

googletrans gpt-3 openapi python tkinter

Last synced: 29 Apr 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: 04 Jul 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/alexandramartinez/todo-app-mule-curietechai

Everything discussed in the 'From Zero to API with MuleSoft, CurieTech AI & Anypoint Code Builder' playlist.

ai api api-spec api-specification curietechai mule mule-app mule4 mulesoft mysql mysql-database oas oas3 openapi openapi-spec openapi-specification openapi3

Last synced: 29 Apr 2026

https://github.com/k8scat/fxiaoke

纷享销客开放平台 Go SDK

fxiaoke go openapi sdk

Last synced: 29 Apr 2026

https://github.com/leanhanc/hono-betterauth-openapi-starter

A Hono 🔥 starter project using Drizzle ORM and Stoker helpers, featuring Better Auth integration and API documentation powered by OpenAPI.

better-auth drizzle-orm hono openapi pino scalar

Last synced: 29 Apr 2026

https://github.com/av/tools

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

agents containerization docker image llm mcp openapi package tools

Last synced: 29 Apr 2026

https://github.com/mreiche/marketstack-openapi

Generated OpenAPI for Marketstack

marketstack openapi

Last synced: 30 Apr 2026

https://github.com/alessandro1918/swagger-api

Um exemplo de documentação de rotas de API com Swagger. Especificação de endpoints, parâmetros, retorno, tudo facilmente documentável e consultável em uma página web disponível em uma rota da própria API.

openapi swagger

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/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/yinchi/openapi-cli

CLI for working with APIs using the OpenAPI specifications

openapi openapi-cli python-click

Last synced: 01 May 2026

https://github.com/straylittlepunk/deepl

Openapi auto generated deepl api client

deepl openapi rust

Last synced: 01 May 2026

https://github.com/ugurcan-aytar/rampart

Cloud-agnostic supply chain incident response engine. One OpenAPI contract, four consumers: Backstage plugin, GitHub Action, CLI, Slack. Go + Rust, stdlib-first.

backstage clean-architecture cli devsecops github-actions golang incident-response monorepo openapi platform-engineering rust sbom supply-chain-security typescript

Last synced: 01 May 2026

https://github.com/lifeiscontent/openapi-sdk

Generate Typesafe SDK from OpenAPI spec

openapi sdk typescript

Last synced: 01 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/xpdojo/api

An open API (often referred to as a public API) is a publicly available application programming interface that provides developers with programmatic access to a proprietary software application or web service.

openapi

Last synced: 02 May 2026

https://github.com/block65/openapi-codegen

Opinionated OpenAPI Typescript code generator

codegen openapi typescript

Last synced: 02 May 2026

https://github.com/michealroberts/o3-stack

Hono, OpenAPI & oRPC example backend API

hono honojs openapi openapi3 orpc

Last synced: 02 May 2026

https://github.com/kleister/kleister-go

Kleister: SDK for Golang

go golang kleister minecraft openapi sdk swagger

Last synced: 02 May 2026

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

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

api client csharp dotnet kiota openapi openapiclient shippo shippoopenapiclient

Last synced: 07 May 2026

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

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

api asana asanaopenapihttpclient csharp dotnet httpclient httpclients openapi openapiclient singleton

Last synced: 07 Jun 2026

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

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

calendar calendly calendlyopenapihttpclient csharp dotnet httpclient httpclients openapi sdk singleton

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/soenneker/soenneker.netlify.httpclients

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

csharp dotnet httpclient httpclients netlify netlifyopenapihttpclient openapi openapiclient singleton

Last synced: 17 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: 04 Jul 2026

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

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

api box boxopenapiclientutil client csharp dotnet kiota openapi openapiclientutil singleton util

Last synced: 05 Jul 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/borolgs/axum-examples

Examples of using the Axum web framework

axum deno htmx openapi

Last synced: 03 May 2026

https://github.com/dweber019/spring-sleuth-example

With OpenApi, RestTemplate and request logging

b3 openapi sleuth spring-boot tracing

Last synced: 03 May 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/tpdlshdmlrkfmcla/seoul_toilet

[Android] 공공데이터 활용한 서울 화장실 찾기 개인 프로젝트

asynctask coroutine google-maps-api openapi thread

Last synced: 04 May 2026

https://github.com/aahoughton/oav

HTTP-aware OpenAPI 3.0/3.1/3.2 validator with JSON Schema 2020-12 codegen compiler

json-schema json-schema-validator openapi openapi-validator openapi3 openapi31 typescript validator

Last synced: 06 Jun 2026

https://github.com/speakeasy-sdks/template-speakeasy-bar

A template for the Speakeasy Bar starter SDK.

managed-sdk openapi openapi3 sdk speakeasy-api vendor-extensions

Last synced: 04 May 2026

https://github.com/roxyapi/sdk-typescript

TypeScript SDK for RoxyAPI. Western astrology, Vedic kundli, tarot, numerology, horoscope, birth chart, I Ching, biorhythm, crystals, dream, and angel number APIs. One key, 10 domains, fully typed. AI agent and MCP ready.

ai-agents angel-numbers astrology-api biorhythm-api birth-chart-api crystals dream-interpretation horoscope-api i-ching-api kundli-api mcp-server model-context-protocol nodejs numerology-api openapi roxyapi spiritual-api tarot-api typescript-sdk vedic-astrology-api

Last synced: 16 May 2026

https://github.com/drewlakee/json-object-openapi-schema

A Kotlin library for converting Json-object into OpenAPI Schema

json kotlin object openapi schema swagger yaml

Last synced: 04 May 2026

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/lsegg/delilah-resto

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

api api-rest dotenv express nodejs nodemon openapi

Last synced: 04 May 2026

https://github.com/drewalth/openapi-generator

Generate an OpenAPI Spec file from ORM model definitions

eloquent generator openapi orm sequelize spring-boot

Last synced: 05 May 2026

https://github.com/swimmwatch/openapi-compare-version

A GitHub Action for comparing OpenAPI specifications version.

github-actions openapi openapi-specification

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/zaydiscold/goodreads-cli

Unofficial CLI + MCP for the full Goodreads API — shelves, ratings, reviews, friends, feed, giveaways (read + write). The API map is the product.

api books cli goodreads mcp openapi reverse-engineering typescript

Last synced: 09 Jun 2026

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.

java jdbc jwt-authentication kafka openapi oracle-database redis swagger-api

Last synced: 05 May 2026

https://github.com/scrntprcrz/openapi-sankeylizer

Visualize your OpenAPI specs as Sankey diagrams. Upload, explore request/response flows, and export as PNG.

api-visualization google-charts openapi react sankey-diagram swagger web-worker

Last synced: 05 May 2026

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

Symfony Command that calculates Open API documentation coverage

openapi php symfony

Last synced: 05 May 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/owlebot/open-api

Public API to interact with the owle.bot app

api javascript nodejs open-source openapi typescript

Last synced: 06 May 2026

https://github.com/leozqin/laridae

A registry and proxy server for agentic tool-calling

agentic-ai agentic-framework agentic-workflow genai golang langchain llm llms openapi openapi3 rag tool-calling

Last synced: 06 May 2026

https://github.com/skibidi-crypto/quarkus-openapi-problem

Standardized error responses for Quarkus REST APIs using Problem Details (RFC9457)

error exception jackson jakarta-rest jaxrs json openapi problem quarkus-extension resteasy rfc9457

Last synced: 06 May 2026

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

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

api client cloudinary cloudinaryopenapiclient csharp dotnet kiota openapi openapiclient

Last synced: 06 May 2026

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

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

api client csharp dotnet fastly fastlyopenapiclient kiota openapi openapiclient

Last synced: 07 May 2026

https://github.com/layoric/exampleopenaiplugin

WIP Example OpenAi Plugin support for ServiceStack

openai openapi servicestack servicestack-plugin

Last synced: 07 May 2026

https://github.com/ztrehagem/openapi-to-fastify-schema

Generate schema objects for Fastify from OpenAPI documents

fastify fastify-library openapi openapi-codegen schema-first

Last synced: 07 May 2026

https://github.com/go-api-libs/freepublicapis

Go library for the Free Public APIs API. The Free Public APIs API provides up-to-date information on every free public API listed on freepublicapis.com. Perfect for developers, students and hobbyists. It is limited to 1000 requests a day, if you need more, feel free to reach out.

api api-client api-library freepublicapis freepublicapis-api go golang integration openapi openapi3

Last synced: 07 May 2026

https://github.com/what3words/what3words-api-docs

Host public Openapi spec and llms files for the what3words Public API

llms llmstxt openapi postman-collection what3words what3words-api

Last synced: 10 Jun 2026

https://github.com/debitoor/express-openapi

Express Open API

debitoor express openapi

Last synced: 08 May 2026

https://github.com/bindu-1805/list_items

This project lists items by making a request to JSON Placeholder using React.

json openapi reactjs vercel-deployment

Last synced: 08 May 2026

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

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

api docker hastebin nestjs openapi pastebin swagger

Last synced: 08 May 2026

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

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

chrome-extension github openapi

Last synced: 08 May 2026

https://github.com/todofixme/openapi-showcases

How different OpenAPI generators might help to build stable REST APIs.

kotlin openapi openapi-spec spring-boot springdoc-openapi

Last synced: 08 May 2026

https://github.com/pixxiti/oax

Open API Spec validation and client generation tooling for Typescript

ky oas oas3 openapi openapi3 react-query tanstack-react-query typescript validation zod

Last synced: 08 May 2026

https://github.com/tpdlshdmlrkfmcla/sparta_coding

[국비교육] 스파르타코딩클럽 안드로이드 앱 개발자 과정 주차별 학습 정리

android coroutines kotlin mvvm openapi retrofit

Last synced: 09 May 2026

https://github.com/ramanks19/the-complete-spring-boot-development-bootcamp

Contains workbook and practice exercise of the Udemy course - The Complete Spring Boot Development Bootcamp (by Learn The Part Inc.)

java mockito open openapi spring-boot spring-security swagger thymeleaf

Last synced: 09 May 2026

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

Example for dev.to article

java openapi spring

Last synced: 09 May 2026

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.

api api-testing fastapi openapi rest-api restful-api test

Last synced: 09 May 2026

https://github.com/vivek92503/weather-app

A weather app showing current conditions and forecasts using OpenWeatherMap API with location detection and temperature unit toggle.

api css3 html5 javascript openapi openwethermap-api

Last synced: 09 May 2026

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

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

client csharp dotnet generated kiota openapi openapiclient openaq openaqopenapiclient

Last synced: 09 May 2026

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

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

api client csharp dotnet kiota openapi openapiclient render renderopenapiclient

Last synced: 09 May 2026

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

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

client csharp dotnet generated kiota openapi openapiclient replicate replicateopenapiclient

Last synced: 09 May 2026

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

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

csharp dotnet kiota openapi openapiclient rebrickable rebrickableopenapiclient

Last synced: 15 May 2026

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

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

api client crm csharp dotnet kiota openapi openapiclient zoho zohoopenapiclient

Last synced: 09 May 2026

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

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

api client csharp dotnet kiota mailgun mailgunopenapiclient openapi openapiclient

Last synced: 09 May 2026

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

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

api client csharp dotnet kiota openai openaiopenapiclient openapi openapiclient

Last synced: 09 May 2026

https://github.com/charconstpointer/ihateannotations

Example combining buf, Protobuf, gRPC, gRPC Gateway and OpenAPI

buf grpc grpc-gateway grpc-go grpc-server openapi swagger

Last synced: 09 May 2026

https://github.com/nikita-volkov/modeliero

Swiss army knife for model code-generation (in beta)

asyncapi code-generation haskell json-schema openapi

Last synced: 09 May 2026

https://github.com/iqbalmind/jurnal-api-example

A collection of example integrations with the Mekari Jurnal Open API using different Code & frameworks. This repository aims to help developers quickly understand and implement Jurnal API integrations across various environments.

example example-code jurnal openapi

Last synced: 09 May 2026

https://github.com/lornajane/apitapviz

Simple visualisation of OpenAPI Arazzo files as Markdown or mermaidjs. (Mirror of the main apitapviz repo)

arazzo cli openapi vizualisation

Last synced: 09 May 2026

https://github.com/ideadapt/intellij-swagger-annotations

Intellij plugin providing editor features related to swagger and openapi annotations

intellij intellij-plugin openapi openapi3 swagger swagger2

Last synced: 10 May 2026

https://github.com/hskrasek/arazzo-parser

Parse OpenAPI Arazzo specifications in PHP

arazzo arazzo-specification openapi

Last synced: 11 May 2026

OpenAPI Specification Awesome Lists
best-of-web-python 848 awesome-integration 686 awesome-jsonschema 94 awesome-corporate-standards 77
OpenAPI Specification Categories
Papers 726 Projects 422 Integration Patterns 200 Resources 191 Django Utilities 161 Adoption 160 Others 116 Third-party Web APIs 93 Web Testing 85 Authorization & Authentication 83 Web Frameworks 75 Flask Utilities 68 Web Scraping & Crawling 48 OpenAPI Utilities 44 HTTP Clients 41 Videos 33 Articles 29 Markdown 28 Branchenspezifisch 26 HTML Processing 25