Running a Mainnet 0 Node

This page provides the specific configuration used to run different types of nodes in Mainnet 0.

Note: during Mainnet 0 only a fixed set of preregistered operators can run a node. The Espresso Network will upgrade to proof-of-stake in a later release.

🫵 TL;DR: For operator running Decaf nodes, the critical changes from that configuration are as follows:

• All URLs supplied by Espresso have changed

• The new container image version is 20250228-patch3

• The JSON-RPC endpoints specified by ESPRESSO_SEQUENCER_L1_PROVIDER and ESPRESSO_SEQUENCER_L1_WS_PROVIDER should be Ethereum mainnet endpoints instead of Sepolia

The container image to use for this deployment is

• ghcr.io/espressosystems/espresso-sequencer/sequencer:20250228-patch3 (if using Espresso's images)

• built off of the branch 20250228-patch3 (if building from source)

The configuration for all node types includes ESPRESSO_SEQUENCER_GENESIS_FILE=/genesis/mainnet.toml. This file is built into the official Docker images. Operators building their own images will need to ensure this file is included and their nodes are pointed at it.

1. Regular Node

Command

sequencer -- http -- catchup -- status

Environment

Same for all nodes

ESPRESSO_SEQUENCER_ORCHESTRATOR_URL=https://orchestrator-kdrhoi6lwz.main.net.espresso.network/
ESPRESSO_SEQUENCER_CDN_ENDPOINT=cdn.main.net.espresso.network:1737
ESPRESSO_STATE_RELAY_SERVER_URL=https://state-relay.main.net.espresso.network
ESPRESSO_SEQUENCER_GENESIS_FILE=/genesis/mainnet.toml
RUST_LOG="warn,libp2p=off"
RUST_LOG_FORMAT="json"
# At least one state peer is required. The following URL provided by Espresso works.
# Optionally, add endpoints for additional peers, separated by commas.
ESPRESSO_SEQUENCER_STATE_PEERS=https://query.main.net.espresso.network

Chosen by operators

# An HTTP JSON-RPC endpoint for Ethereum Mainnet. This is required
ESPRESSO_SEQUENCER_L1_PROVIDER # e.g. https://mainnet.infura.io/v3/<API-KEY>

# A `ws://` or `wss://` endpoint for Ethereum Mainnet. This is optional but
# recommended since it decreases the load on your provider.
ESPRESSO_SEQUENCER_L1_WS_PROVIDER # e.g. wss://mainnet.infura.io/v3/<API-KEY>

# Port on which to host metrics and healthchecks
ESPRESSO_SEQUENCER_API_PORT # e.g. 80

# Path in container to store consensus state
ESPRESSO_SEQUENCER_STORAGE_PATH # e.g. /mount/sequencer/store/

# Path in container to keystore
ESPRESSO_SEQUENCER_KEY_FILE # e.g. /mount/sequencer/keys/0.env

# The address to bind Libp2p to in host:port form. Other nodes should be able to
# access this; i.e. port must be open for UDP.
ESPRESSO_SEQUENCER_LIBP2P_BIND_ADDRESS

# The address we should advertise to other nodes as being our Libp2p endpoint
# (in host:port form). It should resolve a connection to the above bind address; i.e.
# should use public IP address or hostname, and forward to the port given in the bind
# address.
ESPRESSO_SEQUENCER_LIBP2P_ADVERTISE_ADDRESS

Volumes

• $ESPRESSO_SEQUENCER_STORAGE_PATH

• $ESPRESSO_SEQUENCER_KEY_FILE

2. DA Node

Requires operator to additionally run a Postgres server

Command

sequencer -- storage-sql -- http -- catchup -- status -- query

Environment

Same for all nodes

ESPRESSO_SEQUENCER_ORCHESTRATOR_URL=https://orchestrator-kdrhoi6lwz.main.net.espresso.network/
ESPRESSO_SEQUENCER_CDN_ENDPOINT=cdn.main.net.espresso.network:1737
ESPRESSO_STATE_RELAY_SERVER_URL=https://state-relay.main.net.espresso.network
ESPRESSO_SEQUENCER_GENESIS_FILE=/genesis/mainnet.toml
ESPRESSO_SEQUENCER_POSTGRES_PRUNE="true"
ESPRESSO_SEQUENCER_IS_DA="true"
RUST_LOG="warn,libp2p=off"
RUST_LOG_FORMAT="json"
# At least one state peer is required. The following URL provided by Espresso works.
# Optionally, add endpoints for additional peers, separated by commas.
ESPRESSO_SEQUENCER_STATE_PEERS=https://query.main.net.espresso.network
ESPRESSO_SEQUENCER_API_PEERS=https://query.main.net.espresso.network

Chosen by operators

# An HTTP JSON-RPC endpoint for Ethereum Mainnet. This is required
ESPRESSO_SEQUENCER_L1_PROVIDER # e.g. https://mainnet.infura.io/v3/<API-KEY>

# A `ws://` or `wss://` endpoint for Ethereum Mainnet. This is optional but
# recommended since it decreases the load on your provider.
ESPRESSO_SEQUENCER_L1_WS_PROVIDER # e.g. wss://mainnet.infura.io/v3/<API-KEY>

# Port on which to host metrics, healthchecks, and DA API
ESPRESSO_SEQUENCER_API_PORT # e.g. 80

# Path in container to keystore
ESPRESSO_SEQUENCER_KEY_FILE # e.g. /mount/sequencer/keys/0.env

# Connection to Postgres
ESPRESSO_SEQUENCER_POSTGRES_HOST
ESPRESSO_SEQUENCER_POSTGRES_USER
ESPRESSO_SEQUENCER_POSTGRES_PASSWORD

# The address to bind Libp2p to in host:port form. Other nodes should be able to
# access this; i.e. port must be open for UDP.
ESPRESSO_SEQUENCER_LIBP2P_BIND_ADDRESS

# The address we should advertise to other nodes as being our Libp2p endpoint
# (in host:port form). It should resolve a connection to the above bind address; i.e.
# should use public IP address or hostname, and forward to the port given in the bind
# address.
ESPRESSO_SEQUENCER_LIBP2P_ADVERTISE_ADDRESS

Volumes

• $ESPRESSO_SEQUENCER_KEY_FILE

Requires operator to additionally run a Postgres server

Command

sequencer -- storage-sql -- http -- catchup -- status -- query -- state

Environment

Same for all nodes

ESPRESSO_SEQUENCER_ORCHESTRATOR_URL=https://orchestrator-kdrhoi6lwz.main.net.espresso.network/
ESPRESSO_SEQUENCER_CDN_ENDPOINT=cdn.main.net.espresso.network:1737
ESPRESSO_STATE_RELAY_SERVER_URL=https://state-relay.main.net.espresso.network
ESPRESSO_SEQUENCER_GENESIS_FILE=/genesis/mainnet.toml
ESPRESSO_SEQUENCER_IS_DA=true
ESPRESSO_SEQUENCER_ARCHIVE=true
RUST_LOG="warn,libp2p=off"
RUST_LOG_FORMAT="json"
# At least one state peer is required. The following URL provided by Espresso works.
# Optionally, add endpoints for additional peers, separated by commas.
ESPRESSO_SEQUENCER_STATE_PEERS=https://query.main.net.espresso.network
ESPRESSO_SEQUENCER_API_PEERS=https://query.main.net.espresso.network

Chosen by operators

# An HTTP JSON-RPC endpoint for Ethereum Mainnet. This is required
ESPRESSO_SEQUENCER_L1_PROVIDER # e.g. https://mainnet.infura.io/v3/<API-KEY>

# A `ws://` or `wss://` endpoint for Ethereum Mainnet. This is optional but
# recommended since it decreases the load on your provider.
ESPRESSO_SEQUENCER_L1_WS_PROVIDER # e.g. wss://mainnet.infura.io/v3/<API-KEY>

# Port on which to host metrics, healthchecks, and query API
ESPRESSO_SEQUENCER_API_PORT # e.g. 80

# Path in container to keystore
ESPRESSO_SEQUENCER_KEY_FILE # e.g. /mount/sequencer/keys/0.env

# Connection to Postgres
ESPRESSO_SEQUENCER_POSTGRES_HOST
ESPRESSO_SEQUENCER_POSTGRES_USER
ESPRESSO_SEQUENCER_POSTGRES_PASSWORD

# The address to bind Libp2p to in host:port form. Other nodes should be able to
# access this; i.e. port must be open for UDP.
ESPRESSO_SEQUENCER_LIBP2P_BIND_ADDRESS

# The address we should advertise to other nodes as being our Libp2p endpoint
# (in host:port form). It should resolve a connection to the above bind address; i.e.
# should use public IP address or hostname, and forward to the port given in the bind
# address.
ESPRESSO_SEQUENCER_LIBP2P_ADVERTISE_ADDRESS

Volumes

• $ESPRESSO_SEQUENCER_KEY_FILE

Hardware requirements

Hardware requirements are still in flux, but for now we recommend the following:

Non-DA Node: 1 Core CPU, 2GB memory DA Node: (Sequencer) 4 core CPU, 8GB memory + (Database) 2 Core, 4GB memory.

Storage (DA node): 1.2 TB SSD minimum, ability to scale on demand.

Storage (non-DA Node): Negligible, kilobytes