> For the complete documentation index, see [llms.txt](https://docs.elkyc.com/home/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.elkyc.com/home/build-verification-flows/verification-steps/liveness.md).

# Liveness

The Liveness step is designed to verify the presence of a live person during the verification process.

* Add `Liveness Check` step into the flow canvas at the appropriate position in the flow.
* Click on `Liveness Check` to open its configuration options:

<table data-header-hidden><thead><tr><th width="246.26953125"></th><th></th></tr></thead><tbody><tr><td><strong>Number of Attempts</strong></td><td>Define the maximum number of attempts allowed for the liveness check. The limit is set to 5 attempts.</td></tr><tr><td><strong>One-shot Liveness</strong></td><td>A quick, single-step verification process.</td></tr><tr><td><strong>3D Liveness</strong></td><td>Advanced verification using 3D imaging technology.</td></tr><tr><td><strong>Custom 3D Liveness</strong></td><td>Combine various actions (e.g., eye movement, smile) for a more robust check.</td></tr><tr><td><strong>Style Customization</strong></td><td>Customize the UI to match your brand's look and feel.</td></tr><tr><td><strong>Verification Validity Period</strong> </td><td>This setting defines how long a successful verification result remains valid. Enforce re-verification after a defined time window for security or compliance needs.</td></tr></tbody></table>

<figure><img src="/files/n3CiWykQtkHDroQ44Fpn" alt=""><figcaption></figcaption></figure>