Networks & Contracts
Reference information for the Espresso networks: endpoints, contract addresses, and explorers.
Espresso operates one production network and one persistent testnet. Use this page as a single source of truth for endpoints, contract addresses, and explorers. For container image tags and operator environment variables, follow the per-network "Running a … Node" page linked under each network below.
For a list of chains integrated with Espresso, see Espresso Chains Reference.
Mainnet
The production Espresso Network. L1: Ethereum mainnet.
Status
Current release: Mainnet 1 (permissionless delegated proof-of-stake)
Block explorer: https://explorer.main.net.espresso.network
Public API endpoint: https://query.main.net.espresso.network/v1
Staking UI: https://stake.espresso.network/
Contracts
The light client contracts allow chains and other applications integrating with Espresso to read the state of the network in a trust-minimized way. See Light Client Contract for details. The reward claim contracts let validators and delegators claim ESP staking rewards on Ethereum — see Reward Claim Contract for details.
Light Client
Lets chains and apps read Espresso state in a trust-minimized way
Ethereum
Stake Table
Manages validator registration and stake delegation
Ethereum
ESP Token
ERC-20 token used for staking and governance
Ethereum
Fee Contract
Holds ETH deposits used to pay Espresso fees
Ethereum
Reward Claim
Distributes staking rewards to validators and delegators
Ethereum
Node operators
For the container image tag, genesis file, environment variables, and node-type-specific commands needed to point a node at Mainnet, see Running a Mainnet 1 Node.
Decaf Testnet
Espresso's persistent testnet, used for testing integrations before deploying to Mainnet. L1: Ethereum Sepolia.
Status
Status: Persistent, ongoing
Block explorer: https://explorer.decaf.testnet.espresso.network
Public API endpoint: https://query.decaf.testnet.espresso.network/v1
Contracts
Light Client
Lets chains and apps read Espresso state in a trust-minimized way
Ethereum Sepolia
Stake Table
Manages validator registration and stake delegation
Ethereum Sepolia
ESP Token
ERC-20 token used for staking and governance
Ethereum Sepolia
Reward Claim
Distributes staking rewards to validators and delegators
Ethereum Sepolia
Node operators
Decaf node operators are limited to a select group. If you are interested in running a node in a future release of Espresso, contact us.
For the container image tag, genesis file, environment variables, and node-type-specific commands needed to point a node at Decaf, see Running a Decaf Node.
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