eth_chainId

Returns the chain ID used for signing replay-protected transactions.

This method will use 5 Compute Units.

---

Reference: Here

Parameters

None

Returns

chainId, hexadecimal value as a string representing the integer of the current chain id.

// Result
{
  "id":67,
  "jsonrpc": "2.0",
  "result": "0x1"
}

mainnet

curl https://mainnet.arbitrum.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":67}'

testnet

curl https://sepolia.arbitrum.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":67}'