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

# AVS

> Understanding EigenExplorer AVS data

## Introduction

**Actively Validated Services** (AVS) are the cornerstone of the EigenLayer ecosystem. Each AVS is operated by a select group of operators who are staked by the stakers, thereby providing the economic security for the AVS.

On the EigenExplorer, AVS data is aggregated from the EigenLayer on-chain AVS Directory and undergoes manual cleaning and verification. Additionally, some AVS projects are also collected from publicly submitted forms.

### Data Source

Our data is aggregated from the [AVS Directory](https://github.com/Layr-Labs/eigenlayer-contracts/blob/dev/src/contracts/core/AVSDirectory.sol) contract, which maintains an event log of registered AVS. The deployed AVS Directory contract address can be found below:

* [Ethereum Mainnet](https://etherscan.io/address/0x135dda560e946695d6f155dacafc6f1f25c1f5af)
* [Holesky Testnet](https://holesky.etherscan.io/address/0x055733000064333CaDDbC92763c58BF0192fFeBf)

### AVS Stakers and Operators

For each AVS, we aggregate data on the respective stakers and operators. This information is sourced from the [Delegation Manager](https://github.com/Layr-Labs/eigenlayer-contracts/blob/dev/src/contracts/core/DelegationManager.sol) contract. You can find the contracts here:

* [Ethereum Mainnet](https://etherscan.io/address/0x39053D51B77DC0d36036Fc1fCc8Cb819df8Ef37A)
* [Holesky Testnet](https://holesky.etherscan.io/address/0xA44151489861Fe9e3055d95adC98FbD462B948e7)