eth_chainId

Returns the chain ID of the current network as defined by EIP-155. Used to prevent replay attacks across different Ethereum networks.

Parameters

None

Returns

chainId (string)

---

Request

JSON

{
  "jsonrpc": "2.0",
  "method": "eth_chainId",
  "params": [],
  "id": 1
}

Curl

Go

Python

JavaScript

Response

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x171"
}