> ## Documentation Index
> Fetch the complete documentation index at: https://docs.rendless.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Welcome to the Rendless API reference documentation 

## Welcome

Rendless is an og image as a service API. It allows you to generate images for your website or app on the fly with [dynamic content using variables](/essentials/variables). You can use it to generate social media images, blog post images, and more.

<Card title="Simple URL API" icon="code" href="/api-reference/endpoint/get">
  Render an image using a simple URL
</Card>

## Authentication

To access to the image generation API there is no need for authentication. You can directly use the API to generate images to your website or app.