eth_chainId - Validation Cloud

Returns the chain ID used for signing replay-protected transactions. This method will use 10 Compute Units.

Reference: Here

Parameters

None

Returns

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

// Result
{
	"jsonrpc": "2.0",
	"id": 0,
	"result": "0xa5bf"
}

curl https://mainnet.arc.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":0}'

curl https://testnet.arc.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":0}'