MetaMask Wallet

How to add networks on 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!

How to manually add networks on MetaMask Wallet

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

Ethereum Settings

Ethereumsetting parameters:
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
More RPC URL references:https://chainlist.org/en

BNB Chain Settings

BNB Chainsetting parameters:
Network Name: BNB Mainnet
New PCR URL: https://bsc-dataseed1.binance.org
ChainID: 56
Symbol: BNB
Block Explorer: https://bscscan.com/
Recommended RPCURL:
  • https://bsc-dataseed.binance.org
  • https://bsc-dataseed1.binance.org
  • https://rpc.ankr.com/bsc
More RPC URL references:https://chainlist.org/en

Polygon(Matic) Settings

Polygon(Matic) Chain Networksetting parameters:
Network Name: Matic Mainnet
New PCR URL: https://rpc-mainnet.maticvigil.com
ChainID: 137
Symbol: Matic
Block Explorer: https://polygonscan.com
Recommended RPCURL:
  • https://rpc-mainnet.maticvigil.com
  • https://polygon-rpc.com
  • https://rpc.ankr.com/polygon
More RPC URL references:https://chainlist.org/en

Fantom Settings

Fantom Chain Networksetting parameters:
Network Name: Fantom Mainnet
New PCR URL: https://rpcapi.fantom.network
ChainID: 250
Symbol: FTM
Block Explorer: https://ftmscan.com
Recommended RPCURL:
  • https://rpcapi.fantom.network
  • https://rpc.ftm.tools
  • https://rpc.ankr.com/fantom
More RPC URL references:https://chainlist.org/en

AVAX C-Chain Settings

AVAX C-Chain Networksetting parameters:
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 RPCURL:
  • https://api.avax.network/ext/bc/C/rpc
  • https://cchain.explorer.avax.network/
  • https://rpc.ankr.com/avalanche
More RPC URL references:https://chainlist.org/en

Optimism Settings

Optimism Chain Networksetting parameters:
Network Name: Optimism Mainnet
New PCR URL: https://mainnet.optimism.io
ChainID: 10
Symbol: ETH
Block Explorer: https://optimism.io/
Recommended RPCURL:
  • https://mainnet.optimism.io
  • https://rpc.ankr.com/optimism
More RPC URL references:https://chainlist.org/en

Arbitrum Settings

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

Aurora Settings

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

Boba Settings

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

Harmony Settings

Harmonysetting parameters:
Network Name: Harmony Mainnet
New PCR URL: https://rpc.ankr.com/harmony
ChainID: 16666600000
Symbol: ONE
Block Explorer: https://explorer.harmony.one/
Recommended RPCURL:
  • https://rpc.ankr.com/harmony
  • https://api.harmony.one
  • https://harmony-0-rpc.gateway.pokt.network
More RPC URL references:https://chainlist.org/en

Gnosis(xDAI) Settings

Gnosis(xDAI)setting parameters:
Network Name: Gnosis Mainnet
New PCR URL: https://rpc.gnosischain.com
ChainID: 100
Symbol: xdai
Block Explorer: https://blockscout.com/xdai/mainnet
Recommended RPCURL:
  • https://rpc.ankr.com/gnosis
  • https://rpc.gnosischain.com
  • https://xdai-archive.blockscout.com
More RPC URL references:https://chainlist.org/en

HECO Settings

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

OKC Settings

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

Cronos Settings

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 RPCURL:
  • https://evm.cronos.org
  • https://evm-cronos.crypto.org

Moonriver Settings

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 RPCURL:
  • https://rpc.moonriver.moonbeam.network
  • https://moonriver.api.onfinality.io/public
  • https://moonriver.public.blastapi.io
More RPC URL references:https://chainlist.org/en
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On this page
How to add networks on MetaMask Wallet
How to manually add networks on MetaMask Wallet
Ethereum Settings
BNB Chain Settings
Polygon(Matic) Settings
Fantom Settings
AVAX C-Chain Settings
Optimism Settings
Arbitrum Settings
Aurora Settings
Boba Settings
Harmony Settings
Gnosis(xDAI) Settings
HECO Settings
OKC Settings
Cronos Settings
Moonriver Settings