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eth_chainId

Returns the currently configured chain ID, a value used in replay-protected transaction signing as introduced by EIP-155.

Parameters

None.

Returns

A hexadecimal of the current chain ID.

Example

Replace YOUR-API-KEY with an API key from your Infura dashboard.

Request

curl https://base-mainnet.infura.io/v3/YOUR-API-KEY \
-X POST \
-H "Content-Type: application/json" \
-d '{"jsonrpc": "2.0", "method": "eth_chainId", "params": [], "id": 1}'

Response

{
"jsonrpc": "2.0",
"id": 1,
"result": "0x1"
}