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MetaMask Wallet
Visit OpenOcean trading interface, and select the chain you would like to swap, then click MetaMask. OpenOcean supports automatic configuration of networks. If it's your first time connect this chain, you only need to click Approve on the pop-up wallet window. Then you don't need to add the network again next time.

Select "Approve" to automatically add the network
After Approve, you will see your wallet address has connected to the chain on OpenOcean. Now you can start to swap!

In most cases, you can add the networks on wallets automatically. But somtimes, the automatically configured RPC nodes may be abnormal. Then you can choose manually add networks MetaMask or modify RPC by your own. Please see the following way to restore the network connection of the MetaMask wallet.
- Expand view, click my account then Settings
- Click “Networks” on the right side then you can modify RPC or add a network
- After entering the info, then click "Save" in the wallet


Network Name: Ethereum Mainnet
New PCR URL: https://mainnet.infura.io/v3/
ChainID: 1
Symbol: ETH
Block Explorer: https://etherscan.io
Recommended RPC URL:
https://mainnet.infura.io/v3/
https://rpc.ankr.com/eth
https://cloudflare-eth.com

Network Name: BNB Mainnet
New PCR URL: https://bsc-dataseed1.binance.org
ChainID: 56
Symbol: BNB
Block Explorer: https://bscscan.com/
Recommended
RPC
URL:https://bsc-dataseed.binance.org
https://bsc-dataseed1.binance.org
https://rpc.ankr.com/bsc

Network Name: Matic Mainnet
New PCR URL: https://rpc-mainnet.maticvigil.com
ChainID: 137
Symbol: Matic
Block Explorer: https://polygonscan.com
Recommended
RPC
URL:https://rpc-mainnet.maticvigil.com
https://polygon-rpc.com
https://rpc.ankr.com/polygon

Network Name: Fantom Mainnet
New PCR URL: https://rpcapi.fantom.network
ChainID: 250
Symbol: FTM
Block Explorer: https://ftmscan.com
Recommended
RPC
URL:https://rpcapi.fantom.network
https://rpc.ftm.tools
https://rpc.ankr.com/fantom

Network Name: AVAX C-Chain Mainnet
New PCR URL: https://api.avax.network/ext/bc/C/rpc
ChainID: 43114
Symbol: AVAX
Block Explorer: https://cchain.explorer.avax.network/
Recommended
RPC
URL:https://api.avax.network/ext/bc/C/rpc
https://cchain.explorer.avax.network/
https://rpc.ankr.com/avalanche

Network Name: Optimism Mainnet
New PCR URL: https://mainnet.optimism.io
ChainID: 10
Symbol: ETH
Block Explorer: https://optimism.io/
Recommended
RPC
URL:https://mainnet.optimism.io
https://rpc.ankr.com/optimism

Network Name: Arbitrum Mainnet
New PCR URL: https://arb1.arbitrum.io/rpc
ChainID: 42161
Symbol: ETH
Block Explorer: https://arbiscan.io
Recommended
RPC
URL:https://arb1.arbitrum.io/rpc
https://rpc.ankr.com/arbitrum

Network Name: Aurora Mainnet
New PCR URL: https://mainnet.aurora.dev
ChainID: 1313161554
Symbol: aETH
Block Explorer: https://arbiscan.io
Recommended
RPC
URL:https://mainnet.aurora.dev

Network Name: Boba Mainnet
New PCR URL: https://mainnet.boba.network
ChainID: 288
Symbol: OETH
Block Explorer: https://blockexplorer.boba.network
Recommended
RPC
URL:https://mainnet.boba.network
https://lightning-replica.boba.network

Network Name: Harmony Mainnet
New PCR URL: https://rpc.ankr.com/harmony
ChainID: 16666600000
Symbol: ONE
Block Explorer: https://explorer.harmony.one/
Recommended
RPC
URL:https://rpc.ankr.com/harmony
https://api.harmony.one
https://harmony-0-rpc.gateway.pokt.network

Network Name: Gnosis Mainnet
New PCR URL: https://rpc.gnosischain.com
ChainID: 100
Symbol: xdai
Block Explorer: https://blockscout.com/xdai/mainnet
Recommended
RPC
URL:https://rpc.ankr.com/gnosis
https://rpc.gnosischain.com
https://xdai-archive.blockscout.com

Network Name: Heco Mainnet
New PCR URL: https://http-mainnet.hecochain.com
ChainID: 128
Symbol: ht
Block Explorer: https://hecoinfo.com
Recommended
RPC
URL:https://http-mainnet.hecochain.com
https://hecoapi.terminet.io/rpc

Network Name: OKE Mainnet
New PCR URL: https://exchainrpc.okex.org
ChainID: 66
Symbol: okt
Block Explorer: https://www.oklink.com/okexchain
Recommended
RPC
URL:https://exchainrpc.okex.org

Cronos setting parameters:
Network Name: Cronos Mainnet
New PCR URL: https://evm-cronos.crypto.org
ChainID: 25
Symbol: CRO
Block Explorer: https://cronos.crypto.org/explorer
Recommended
RPC
URL:https://evm.cronos.org
https://evm-cronos.crypto.org

Moonriver setting parameters:
Network Name: Moonriver Mainnet
New PCR URL: https://rpc.moonriver.moonbeam.network
ChainID: 1285
Symbol: movr
Block Explorer: https://moonriver.moonscan.io
Recommended
RPC
URL:https://rpc.moonriver.moonbeam.network
https://moonriver.api.onfinality.io/public
- https://moonriver.public.blastapi.io
Last modified 1yr ago