curl --request GET \
  --url https://api.amberdata.com/blockchains/addresses/balances \
  --header 'x-api-key: <api-key>'

{
  "status": 200,
  "title": "OK",
  "description": "Successful request",
  "payload": {
    "totalRecords": 2,
    "records": [
      {
        "address": "0x06012c8cf97bead5deae237070f9587f8e7a266d",
        "balance": "59778459582703547487",
        "balanceIn": "2.875808647567209816669e+22",
        "balanceOut": "2.8698308016089394619203e+22",
        "price": {
          "balance": {
            "currency": "usd",
            "quote": "241.562150842",
            "total": "14129.3470847396809724208003882"
          }
        },
        "tokens": [
          {
            "address": "0x9f8f72aa9304c8b593d555f12ef6589cc3a579a2",
            "amount": "187720361680000000000",
            "decimals": 18,
            "milliseconds": 1559665587000,
            "name": "Maker",
            "symbol": "MKR",
            "timestamp": 1559665587000,
            "price": {
              "amount": {
                "currency": "usd",
                "quote": "680.815866247",
                "total": "127803.0006493693442149600000000"
              }
            }
          }
        ]
      }
    ]
  }
}