---
title: S3
description: Use the S3-compatible API to interact with R2 storage buckets and objects.
image: https://developers.cloudflare.com/dev-products-preview.png
---

> Documentation Index  
> Fetch the complete documentation index at: https://developers.cloudflare.com/r2/llms.txt  
> Use this file to discover all available pages before exploring further. 

[Skip to content](#%5Ftop) 

# S3

* [ S3 API compatibility ](https://developers.cloudflare.com/r2/api/s3/api/)
* [ Extensions ](https://developers.cloudflare.com/r2/api/s3/extensions/)
* [ Presigned URLs ](https://developers.cloudflare.com/r2/api/s3/presigned-urls/)
* [ Temporary credentials ](https://developers.cloudflare.com/r2/api/s3/temporary-credentials/)

```json
{"@context":"https://schema.org","@type":"WebPage","@id":"https://developers.cloudflare.com/r2/api/s3/#page","headline":"S3 · Cloudflare R2 docs","description":"Use the S3-compatible API to interact with R2 storage buckets and objects.","url":"https://developers.cloudflare.com/r2/api/s3/","inLanguage":"en","image":"https://developers.cloudflare.com/dev-products-preview.png","dateModified":"2026-04-21","publisher":{"@type":"Organization","name":"Cloudflare","url":"https://www.cloudflare.com/"},"isPartOf":{"@type":"WebSite","@id":"https://developers.cloudflare.com/#website","name":"Cloudflare Docs","url":"https://developers.cloudflare.com/"}}
{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/directory/","name":"Directory"}},{"@type":"ListItem","position":2,"item":{"@id":"/r2/","name":"R2"}},{"@type":"ListItem","position":3,"item":{"@id":"/r2/api/","name":"API"}},{"@type":"ListItem","position":4,"item":{"@id":"/r2/api/s3/","name":"S3"}}]}
```