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/asteriskiry/eventsignup_backend

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https://github.com/asadhasan/fastapi-projections-service

Playing with FastAPI by creating an investment projections service (using Nutmeg's calculator to actually calculate the projections)

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

Proyecto de control de gastos (Spring boot)

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https://github.com/pilotak/openapi-typescript-jwt

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Orca Scan OpenAPI Specification

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https://github.com/weslleycapelari/horse-documentation

Documentação OpenAPI para suas APIs Horse em Delphi.

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https://github.com/ophiosdev/openapi-generator-di

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https://github.com/natthasath/demo-laravel-scramble

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https://github.com/rudeboyone/tarefastest

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

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https://github.com/inyourtime/fastify-multiple-swagger

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https://github.com/thavarshan/orthrus

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

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

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