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Optimism

Firehose configuration for Optimism (OP Mainnet)

This page provides Optimism (OP Mainnet) specific configuration. First read the Ethereum general notes for common information.

Docker Image

ghcr.io/streamingfast/go-ethereum:optimism-<version>-fh3.0

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The image contains both the Firehose-patched OP Geth binary and fireeth.

Client Binary

Networks

Network
Chain Name

OP Mainnet

optimism-mainnet

OP Sepolia

optimism-sepolia

OP Node Dependency

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Reader Node Configuration

OP Mainnet

OP Sepolia

Key OP Geth Flags

Flag
Description

--vmtrace=firehose

Required. Enables Firehose Protocol output

--op-network

OP Stack network name

--networkid

Network ID (10 for OP Mainnet)

--rollup.sequencerhttp

Sequencer endpoint for transaction submission

--authrpc.jwtsecret

Path to JWT secret for OP Node connection

--state.scheme=path

Recommended state storage scheme

--datadir

Data directory (use {node-data-dir} template)

Resources

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