---
title: Introduction
description: "This is a sample Pet Store Server based on the OpenAPI 3.0 specification. You can find out more about Swagger at https://swagger.io. In the third iteration of the pet store,…"
url: "https://betterdocs.shahrear.msf.bd/index.php/docs/petstore-openapi-live-docs/petstore-openapi-live/petstore-openapi-live-introduction/"
updated: "2026-08-10"
category: Petstore (OpenAPI) — LIVE
---

# Introduction

This is a [Sample](https://betterdocs.shahrear.msf.bd/encyclopedia/sample/) Pet Store [Server](https://betterdocs.shahrear.msf.bd/encyclopedia/server/) based on the OpenAPI 3.0 specification. You can find out more about Swagger at [https://swagger.io](https://swagger.io). In the third iteration of the pet store, we've switched to the design first approach! You can now help us improve the [API](https://betterdocs.shahrear.msf.bd/encyclopedia/api/) whether it's by making changes to the definition itself or to the code. That way, with time, we can improve the [API](https://betterdocs.shahrear.msf.bd/encyclopedia/api/) in general, and expose some of the [New](https://betterdocs.shahrear.msf.bd/encyclopedia/new/) features in OAS3.

Some [Useful](https://betterdocs.shahrear.msf.bd/encyclopedia/useful/) links:

- [The Pet Store repository](https://github.com/swagger-api/swagger-petstore)
- [The source API definition for the Pet Store](https://github.com/swagger-api/swagger-petstore/blob/master/src/main/resources/openapi.yaml)

## Base URLs

| URL | Description |
| --- | --- |
| `/API/v3` |  |

## Authentication

| Scheme | Type | Details |
| --- | --- | --- |
| `petstore_auth` | oauth2 | OAuth 2.0 |
| `api_key` | apiKey | [API](https://betterdocs.shahrear.msf.bd/encyclopedia/api/) key via `api_key` (header) |

## [API](https://betterdocs.shahrear.msf.bd/encyclopedia/api/) Details

| Version | [1](https://betterdocs.shahrear.msf.bd/encyclopedia/1/).0.27 |
| --- | --- |
| Contact | apiteam@swagger.io |
| License | Apache 2.0 |