Eth_getBalance

Get ETH Balance of an Address

post

Retrieves the balance (in wei) of a given Ethereum address. You can specify the block parameter to get the balance at a specific block.

Authorizations

api-keyAuth

api-keystringRequired

Body

application/json

jsonrpcstringRequired

JSON-RPC version

Example: 2.0

methodstringRequired

JSON-RPC method name

Example: eth_getBalance

paramsstring[] · min: 2 · max: 2Required

Array with 2 parameters:

1. Address (20-byte hex string with '0x' prefix)
2. Block tag (e.g., 'latest', 'earliest', 'pending', or block number in hex)

Example: ["0x742d35Cc6634C0532925a3b844Bc454e4438f44e","latest"]

idintegerRequired

Request ID

Example: 1

Responses

200

Balance (in wei) as hex string

application/json

jsonrpcstringOptional

JSON-RPC version

Example: 2.0

idintegerOptional

Same ID as in request

Example: 1

resultstringOptional

Balance in wei as hexadecimal string. Example: "0x0234c8a3397aab58" = 158972490234375000 in decimal.

Example: 0x0234c8a3397aab58

post

/

HTTPcURLJavaScriptPython

POST / HTTP/1.1
Host: eth-archive.nownodes.io
api-key: YOUR_API_KEY
Content-Type: application/json
Accept: */*
Content-Length: 115

{
  "jsonrpc": "2.0",
  "method": "eth_getBalance",
  "params": [
    "0x742d35Cc6634C0532925a3b844Bc454e4438f44e",
    "latest"
  ],
  "id": 1
}

200

Balance (in wei) as hex string

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x0234c8a3397aab58"
}