MetaMask
wallet_switchEthereumChain
Summary: Switches the wallet's active Ethereum chain.
Requests that the wallet switches its active Ethereum chain. Introduced by EIP-3326.
Parameters
SwitchEthereumChainParameter object
requiredSwitchEthereumChainParameter
Returns
SwitchEthereumChainResult null
Errors
Code
Message
4902
Unrecognized chain ID. Try adding the chain using wallet_addEthereumChain first.
Customize request
Parameter
Value
Connect your MetaMask wallet to run requests successfully.
Request
await window.ethereum.request({
"method": "wallet_switchEthereumChain",
"params": [
{
chainId: "0x64"
}
],
});
Example response
null