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: 2026-07-08 00:22:40 UTC
JSON Representation

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/soenneker/soenneker.n8n.openapiclient

A .NET client generated from the N8N OpenAPI schema, updated daily

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Last synced: 09 May 2026

https://github.com/thalida/openapi-docs-viewer

Display interactive OpenAPI schema documentation in VSCode

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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.

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Last synced: 09 May 2026

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

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

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Last synced: 09 May 2026

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

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

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Last synced: 09 May 2026

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

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

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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.replicate.openapiclient

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

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Last synced: 09 May 2026

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

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

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Last synced: 31 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.

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

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

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Last synced: 02 Jun 2026

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

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

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Last synced: 15 May 2026

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

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

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Last synced: 09 May 2026

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

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

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Last synced: 09 May 2026

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

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

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Last synced: 09 May 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/charconstpointer/ihateannotations

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

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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.

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Last synced: 09 May 2026

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

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

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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.

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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)

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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/swooby/openai-openapi-kotlin

OpenAI OpenAPI Specification - Kotlin

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Last synced: 10 May 2026

https://github.com/jaqx0r/rules_oapi_codegen

Bazel rules for generating API service handlers with `oapi-codegen`.

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Last synced: 10 May 2026

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

Intellij plugin providing editor features related to swagger and openapi annotations

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Last synced: 10 May 2026

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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Last synced: 11 May 2026

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

Parse OpenAPI Arazzo specifications in PHP

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Last synced: 11 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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https://github.com/pidelport/onfido-openapi-rust

Onfido OpenAPI client for Rust

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

Mattermost Open API for Insomnia

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https://github.com/opensourceways/cora

Command collection for all kinds of Services in Open Source Community

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

Gopad: SDK for Python

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https://github.com/sookwalinga/ask_sam

Web app consuming the openAI GPT3 api. Feel free to "ask sam anything" 😉

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Last synced: 11 May 2026

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

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

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Last synced: 11 May 2026

https://github.com/ndrsg/openapi-trait

Use rust macros to derive a trait from OpenAPI that you can implement

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Last synced: 02 Jul 2026

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

An async thread-safe singleton for Loops OpenApiClient

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Last synced: 11 Jun 2026

https://github.com/soenneker/soenneker.openapi.merger

A utility library to merge OpenApi specs

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Last synced: 13 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/ke4nec/swagger-ui-electron

Wrap Swagger UI with Electron

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Last synced: 13 May 2026

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

Extendable Swagger Code Generator for PHP

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Last synced: 13 May 2026

https://github.com/those-otter-programs/spring_boot_3_restfull_api

A Spring Boot 3 RESTfull API sample

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Last synced: 14 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/sla-ppy/gocusign

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

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Last synced: 14 May 2026

https://github.com/n8n-code/n8n-nodes-ondo-finance

Ondo Finance institutional-grade tokenized real-world assets platform bridging traditional finance and DeFi protocols

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Last synced: 14 Jun 2026

https://github.com/roxyapi/postman-collections

Postman collections for astrology, Vedic, tarot, numerology, I Ching, biorhythm, Human Design and more. Auto synced from OpenAPI, one API key.

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Last synced: 15 Jun 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

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Last synced: 15 Jun 2026

https://github.com/h0rv/zchema

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

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Last synced: 16 Jun 2026

https://github.com/soenneker/soenneker.n8n.httpclients

A thread-safe singleton HttpClient for N8n's OpenAPI integration.

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Last synced: 04 Jul 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/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/soenneker/soenneker.wise.openapiclientutil

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

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Last synced: 28 Jun 2026

https://github.com/sebavidal10/le-chat-openai

POC de integración de openai

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Last synced: 28 Jun 2026

https://github.com/yfedoseev/pdf_oxide_api

The fastest, smallest, most secure self-hostable PDF REST API — stateless single-shot HTTP service wrapping the pdf_oxide Rust engine (text/markdown/html extraction, AcroForm fill with first-class Japanese/CJK, merge/split, pipeline). Distroless Docker, ~8-16MB.

acroform axum dify docker form-filling microservice n8n openapi pdf pdf-api pdf-extraction pdf-forms pdf-to-markdown rest-api rust self-hosted stirling-pdf-alternative text-extraction

Last synced: 28 Jun 2026

https://github.com/liamvnastoria/anime-sama

The Anime-Sama Renew Interface Project

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Last synced: 09 Apr 2026

https://github.com/drakkar-software/pennylane-openapi-clients

Pennylane api client. Only typescript for now

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Last synced: 08 Feb 2026

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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Last synced: 09 Apr 2026

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

KKid API requires authentication. Use KumpeApps credentials. Request access via...

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Last synced: 30 Jun 2026

https://github.com/bas-kirill/muse-project

[Muse Group] Frontend Academy

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Last synced: 01 Aug 2025

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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Last synced: 16 May 2026

https://github.com/ningenme/mami-interface

趣味開発 all-interface (product name: mami)

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Last synced: 09 Apr 2026

https://github.com/lucasvmarangoni/tasklist

Rest API for task list application, developed with Express, Typescript and Prisma, applying TDD and principles of DDD

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Last synced: 09 Apr 2026

https://github.com/predicthq/api-specs

PredictHQ OpenAPI specs

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Last synced: 30 Jul 2025

https://github.com/nikitakumawat/weather-app.github.io

Weather app using ReactJS and GraphQL

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Last synced: 12 Apr 2026

https://github.com/sirerun/mint

mint is an open-source Go CLI that turns any OpenAPI 3.0/3.1 specification into a working Go MCP server.

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Last synced: 01 Apr 2026

https://github.com/sajith4u/gazettequery

RAG based application for analyzing Sri Lankan government gazette files

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Last synced: 07 May 2026

https://github.com/yossichakim/task-manager-api

Full-stack task manager built with Flask, React, SQLite, JWT authentication, Swagger documentation, automated backend tests, and Render deployment.

authentication crud full-stack jwt openapi pytest python react render rest-api sqlite swagger task-manager vite

Last synced: 07 Jul 2026

https://github.com/kevinoid/appveyor-swagger-java

AppVeyor REST API Client (from Swagger, in Java)

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Last synced: 21 Apr 2026

https://github.com/usings/openapi-shape

Generate TypeScript API contract types from OpenAPI 3.x JSON.

dts openapi typescript

Last synced: 23 May 2026

https://github.com/murilobeltrame/springjerseydemoapi

Demo API built with Spring and Jersey

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Last synced: 16 Apr 2026

https://github.com/uneva/unplugin-openapi-gen-ts

OpenAPI Generated TypeScript

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Last synced: 04 Jan 2026

https://github.com/freight-trust/api-docs

API Documentation for EDI Service

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Last synced: 26 Jul 2025

https://github.com/aitthi/rust-api-example

a simple example of rust api

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Last synced: 18 Apr 2026

https://github.com/alexandrelamberty/nasa-neows-api-spec

:rock: NASA Near Earth Object Web Service API Specification.

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Last synced: 07 Nov 2025

https://github.com/alexandrelamberty/hortus-api-spec

:seedling: Gardening Planner API Specification.

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Last synced: 07 Nov 2025

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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Last synced: 07 Nov 2025

https://github.com/egonw/grant-api

Garlic API around Wikidata for research grants

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Last synced: 16 Mar 2025

https://github.com/jdifool/tempest-openapi-tools

OpenAPI specification generator and interactive documentation UI for the Tempest framework.

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Last synced: 20 Jan 2026

https://github.com/raulparamio/springclientesapi

Proyecto Java utilizando: Java 17, SpringBoot, Docker, API REST, Hibernate, Swagger, MySQL y Maven.

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Last synced: 12 Apr 2026

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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Last synced: 19 May 2026

https://github.com/shearichard/analyse-awesome-openapi

Some scripts to analyse the tools listed in 'Awesome OpenAPI'

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Last synced: 15 Apr 2026

https://github.com/adam-bouafia/l-aquila-smart-roads-sose

Repository for the Project of Software Oriented (A.A. 2023-2024) held at the University of L'Aquila @UnivAQ by Prof. Marco Autili and Doc. Gianluca Filippone.

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Last synced: 06 Jan 2026

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

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

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Last synced: 06 Jun 2026

https://github.com/stainlu/stainful

The open-source Stainless — point your existing stainless.yml at it and get the same idiomatic Python SDK. Zero migration. No SaaS.

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https://github.com/maks11060/openapi

OpenAPI schema for Danbooru, Shikimori

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https://github.com/andyfrith/hono-api-starter

An API starter project built using the Hono web application framework.

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https://github.com/libninjacom/twilio-sendgrid-v-3-rs

twilio sendgrid v3 client, generated from the OpenAPI spec

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Last synced: 13 May 2026

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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Last synced: 25 Jan 2026

https://github.com/meetup/sbt-openapi

Plugin for generating managed code from OpenAPI specifications

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Last synced: 16 Jan 2026

https://github.com/mrxz/javalin-openapi-apt

Annotation processing to generate OpenAPI specification from source code using Javalin

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Last synced: 22 May 2026

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

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

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Last synced: 20 Apr 2026

https://github.com/wronai/allama

testing and benchmarking suite for Large Language Models (LLMs) focused on Python code generation. The project enables automatic quality assessment of generated code through various metrics and generates detailed HTML reports.

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