# Contracts

## Fee Contract

This contract is used for depositing $ETH for paying fees in the Espresso network.

[0x7f15ff3f783acd4d09c6a79d098ed5069a2bd39a](https://etherscan.io/address/0x7f15ff3f783acd4d09c6a79d098ed5069a2bd39a)

## Stake Table Contract

Mainnet 1 adds a contract for staking and delegation.

TBD

## Light Client Contracts

Espresso Mainnet maintains [light client contracts](https://github.com/EspressoSystems/gitbook/blob/main/learn/the-espresso-network/internal-functionality/light-client.md) that rollups and other applications integrating with Espresso can use to read the state of the Espresso network in a trust-minimized way.

* Light client on Ethereum (for L2s integrating Espresso): [0x95ca91cea73239b15e5d2e5a74d02d6b5e0ae458](https://etherscan.io/address/0x95ca91cea73239b15e5d2e5a74d02d6b5e0ae458)
* Light client on Arbitrum (for Orbit L3s integrating Espresso): [0x47495bb99cccbb1bda9f15b32b69093137f886db](https://arbiscan.io/address/0x47495bb99cccbb1bda9f15b32b69093137f886db)


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