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

# Overview

In the world of cryptography and decentralized applications, randomness plays a critical role. While randomness is a foundational concept, achieving genuine unpredictability in a transparent and verifiable manner on the blockchain is challenging. Enter Gelato VRF (Verifiable Random Function) - a tool designed to provide robust randomness with inherent verifiability.

## New To VRF?

<Card title="What is VRF?" href="/vrf/introduction/understanding-vrf" icon="link">
  Learn more about VRF and how it works.
</Card>

## Already Familiar?

<Columns cols={2}>
  <Card title="How-To Guides" href="/vrf/how-to-guides" icon="link">
    Learn how to use Gelato VRF in your projects.
  </Card>

  <Card title="Security Considerations" href="/vrf/security-considerations" icon="link">
    Learn more about the security considerations of using Gelato VRF.
  </Card>
</Columns>