axios({
  method:'get',
  url: 'https://web3api.io/api/v1/addresses/ETHEREUM_ADDRESS_HERE/account-balances/latest',
  headers: { 'x-api-key': 'YOUR_API_KEY_HERE' }
}).then(res => {
  // res data example:
  // {
  //   "address": "0x06012c8cf97bead5deae237070f9587f8e7a266d",
  //   "blockNumber": "7280439",
  //   "timestamp": 1551391449000,
  //   "timestampNanoseconds": 0,
  //   "value": "43704830615496056128"
  // }
})