> For the complete documentation index, see [llms.txt](https://doc.youverify.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.youverify.co/api-reference-sdk/sdk/anti-deepfake-liveness-sdk.md).

# Anti-Deepfake Liveness SDK

Protect your verification flows against sophisticated presentation attacks and deepfake attempts with Youverify's Anti-DeepFake Liveness SDK. It combines passive liveness, active challenges, screen replay detection, and injection attack detection to determine whether a customer is genuinely present during a verification session. The SDK is available for Web and mobile applications on iOS and Android.

The SDK provides configurable liveness checks, allowing businesses to apply the level of verification that best fits their risk requirements and customer journey. It is designed to strengthen identity verification by detecting manipulated or synthetic presentations before they can be used to bypass onboarding and fraud prevention controls.

To get your Public Merchant Key, Click on [Getting your Public Merchant Key](/get-started/getting-your-public-merchant-key.md).

To install the SDK, kindly follow the links below:

### Web

{% embed url="<https://www.npmjs.com/package/youverify-liveness-web/v/1.0.1>" %}
Active Liveness SDK
{% endembed %}

{% embed url="<https://www.npmjs.com/package/youverify-passive-liveness-web>" %}
Passive Active Liveness SDK
{% endembed %}

### Android

{% content-ref url="/pages/74092ea51970aaf2c9913883d1c8ea9b5eed79bd" %}
[Android Liveness SDK \*New](/api-reference-sdk/sdk/anti-deepfake-liveness-sdk/android-liveness-sdk-new.md)
{% endcontent-ref %}

### iOS

{% content-ref url="/pages/90d56360f36c6861d625fa88c7707b9a1b59c321" %}
[iOS Liveness SDK \*New](/api-reference-sdk/sdk/anti-deepfake-liveness-sdk/ios-liveness-sdk-new.md)
{% endcontent-ref %}


---

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