# Integrating the SDK

To use Feature Experimentation & Rollout (FE\&R), your website or application must be connected to the platform through a **Software Development Kit (SDK)**. 

The SDK enables FE\&R to deliver features, rollouts, and experiment variations to your users in real time.\
This page explains **what an SDK is**, **why it is required**, and **how to get started from the FE\&R interface**.

### What is an SDK and why is it required?

An **SDK (Software Development Kit)** is a technical component integrated into your application that connects your product to FE\&R.

The SDK enables your application to:

* Identify users uniquely
* Send user or context information (device, location, plan, etc.)
* Retrieve feature decisions from FE\&R
* Apply the correct variation or configuration in real time.

Once integrated, the SDK supports all your campaigns.

{% hint style="danger" %}
Without an SDK, FE\&R cannot run campaigns or rollouts in your application.
{% endhint %}

### Setting up the SDK

Configure SDK integration from the FE\&R interface.

<figure><img src="/files/iDFhJW2tlmaYwXpb4NHF" alt="SDK Feature Experimentation AB Tasty"><figcaption></figcaption></figure>

Access it from:

**Settings > Feature Experimentation > SDK Installation**\
<https://app2.abtasty.com/settings/feature-experimentation/manage-sdk>

Available actions:

* Select your platform (Web, Mobile, Server)
* Access SDK documentation
* Share installation instructions with your technical team

This is the starting point for SDK integration.

### Supported platforms

FE\&R provides SDKs for common platforms, including:

* **Web:** JavaScript, React
* **Mobile:** iOS, Android, React Native, Flutter
* **Server-side:** Java, PHP, .NET, Python, Go and more

All SDKs follow the same principles, though implementation details vary by platform.

### For non-technical stakeholders

You don’t need to write or understand code to use FE\&R. Your role is mainly to ensure:

* The correct platform and environment are selected
* SDK integration is planned with your technical team
* The foundation is ready before launching campaigns

Once the SDK is integrated, product, growth, and marketing teams can work independently in FE\&R.

### For developers

All technical details, code examples, SDK references, and advanced implementation guides are available in the **Feature Experimentation & Rollout developer documentation**.

**Access the FE\&R Developer Documentation :** [**https://docs.abtasty.com/server-side**](https://docs.abtasty.com/server-side)

This documentation covers:

* SDK installation and configuration
* Server-side and full-code experimentation
* Advanced targeting and rollout strategies
* Performance and architecture best practices


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