eth_chainId

Returns the chain ID of the current network.

https://api.1inch.com/web3/8453
Supported on:
Base

Request

Request
object
jsonrpc
* string (Enum)
JSON-RPC version
2.0
method
* string
The method to call
params
array
Method parameters
items
any
id
* number
Request ID
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const response = await fetch('https://api.1inch.com/web3/8453', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    Authorization: `Bearer ${API_KEY}`,
  },
  body: JSON.stringify({
    jsonrpc: '2.0',
    method: 'eth_chainId',
    params: [],
    id: 1,
  }),
});

const data = await response.json();
console.log(data);

Response

Chain ID

Chain ID
string
JSON
1
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"0x1"

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