Overview

OP Mainnet, formerly called Optimism, is the main blockchain network in the Optimism ecosystem. OP Mainnet is a Layer 2 network that operates on top of Ethereum's architecture. It is designed to be EVM equivalent and as close to Ethereum as possible.

The minor differences between building on OP Mainnet and Ethereum are outlined in Optimism's developer docs.

Network Support

Network	HTTPS	WSS
Mainnet	✅	✅

Methods & Compute Units

eth_accounts	10
eth_blockNumber	10
eth_call	30
eth_chainId	5
eth_estimateGas	100
eth_gasPrice	20
eth_getBalance	20
eth_getBlockByHash	30
eth_getBlockByNumber	20
eth_getBlockTransactionCountByHash	20
eth_getBlockTransactionCountByNumber	20
eth_getCode	20
eth_getFilterChanges	20
eth_getFilterLogs	70
eth_getLogs	80
eth_getStorageAt	20
eth_getTransactionByBlockHashAndIndex	20
eth_getTransactionByBlockNumberAndIndex	20
eth_getTransactionByHash	20
eth_getTransactionCount	30
eth_getTransactionReceipt	20
eth_getUncleByBlockHashAndIndex	20
eth_getUncleByBlockNumberAndIndex	20
eth_getUncleCountByBlockHash	20
eth_getUncleCountByBlockNumber	20
eth_newBlockFilter	20
eth_newFilter	20
eth_newPendingTransactionFilter	20
eth_sendRawTransaction	270
eth_subscribe	10
eth_syncing	5
eth_uninstallFilter	10
eth_unsubscribe	10
net_listening	5
net_peerCount	10
net_version	5
web3_clientVersion	10
web3_sha3	10
txpool_content	5000