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

# Overview

> Official Upsun Cloud SDKs for PHP and Node.js.

The Upsun Cloud SDKs provide typed client libraries that map to the Upsun Cloud CLI commands, letting you manage the platform programmatically from your applications. Both SDKs are currently in **Beta** — features and APIs may evolve over time.

> [card] [PHP SDK](https://developer.upsun.com/api/sdk/php.md)
>
> Install with Composer

> [card] [Node.js SDK](https://developer.upsun.com/api/sdk/js.md)
>
> Install with npm

## Quick comparison

| | PHP | Node.js |
| - | - | - |
| **Package** | `upsun/upsun-sdk-php` | `upsun-sdk-node` |
| **Install** | `composer require upsun/upsun-sdk-php` | `npm install upsun-sdk-node` |
| **Language** | PHP | TypeScript |
| **License** | Apache 2.0 | Apache 2.0 |
| **Source** | [GitHub](https://github.com/upsun/upsun-sdk-php) | [GitHub](https://github.com/upsun/upsun-sdk-node) |

## Authentication

Both SDKs authenticate with an Upsun Cloud API token. Store it in an environment variable and pass it when initializing the client. See each SDK's README for usage examples.


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