eth_getBalance

Returns the balance of the account of given address.

This method will use 20 Compute Units.

---

Reference: Here

Parameters

1. DATA, 20 Bytes - address to check for balance.

2. QUANTITY|TAG - integer block number, or the string "latest", "earliest" or "pending", see the default block parameter

Returns

INTEGER - Hex value representing integer of the current balance in WEI.

// Result
{
  "id":83,
  "jsonrpc": "2.0",
  "result": "0x2abfcdcfa71e54e" 
}

mainnet

curl https://mainnet.optimism.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"eth_getBalance","params":["0x95abDa53Bc5E9fBBDce34603614018d32CED219e", "latest"],"id":1}'