Standard Ethereum JSON-RPC API
eth_chainId
Returns the chain ID of the connected network. Linea Mainnet is 0xe708 (59144). Linea Sepolia is
0xe705 (59141).
Parameters
None.
Returns
Hexadecimal value of the chain ID.
Example
Request
curl https://rpc.linea.build \
-X POST \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"method": "eth_chainId",
"params": [],
"id": 1
}'
Example response
{
"jsonrpc": "2.0",
"id": 1,
"result": "0xe708"
}