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}'
Response​
{
"jsonrpc": "2.0",
"id": 1,
"result": "0xe708"
}