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Networks and RPC endpoints

OP Stack networks and public RPC endpoints

This reference guide provides a listing of the different OP Stack networks and public RPC endpoints.

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The public RPC URLs provided below are rate limited and do not support websocket connections. If you are experiencing rate limiting issues or need websocket functionality, consider running your own node or signing up for a third-party RPC provider.

OP Mainnet

ParameterValue
Network NameOP Mainnet
Chain ID10
Currency Symbol1ETH
Explorerhttps://explorer.optimism.io (opens in a new tab)
Public RPC URLhttps://mainnet.optimism.io (opens in a new tab)
Sequencer URL2https://mainnet-sequencer.optimism.io (opens in a new tab)
Contract AddressesRefer to the Contract Addresses page
Connect WalletClick here to connect your wallet to OP Mainnet (opens in a new tab)
  1. The "currency symbol" is required by some wallets like MetaMask.
  2. The sequencer URL is write only.

OP Sepolia

ParameterValue
Network NameOP Sepolia
Chain ID11155420
Currency Symbol1ETH
Explorerhttps://testnet-explorer.optimism.io (opens in a new tab)
Public RPC URLhttps://sepolia.optimism.io (opens in a new tab)
Sequencer URL2https://sepolia-sequencer.optimism.io (opens in a new tab)
Contract AddressesRefer to the Contract Addresses page
Connect WalletClick here to connect your wallet to OP Sepolia (opens in a new tab)
  1. The "currency symbol" is required by some wallets like MetaMask.
  2. The sequencer URL is write only.