eth_chainId - Polygon

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

Parameters

None.

Returns

QUANTITY - integer of the current chain ID.

Request example

Curl

curl https://polygon.api.watchdata.io/node/jsonrpc?api_key=your_api_key
-X POST \
-d '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":83}'

Postman

URL: https://polygon.api.watchdata.io/node/jsonrpc?api_key=your_api_key
RequestType: POST
Body: 
{
    "jsonrpc":"2.0",
    "method":"eth_chainId",
    "params":[],
    "id":83
}

Result

{
    "jsonrpc": "2.0",
    "id": 83,
    "result": "0x1"
}