eth_chainId

Returns the chain ID of the current network.

Params

(0)

(Chain ID)

string

Match pattern:

^0x(0|[1-9a-f][0-9a-f]*)$

await window.ethereum.request({
  "method": "eth_chainId",
  "params": []
});

"0x1"

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await window.ethereum.request({
  "method": "eth_chainId",
  "params": []
});