curl --request GET \
  --url 'https://beaconcha.in/api/v1/latestState?apikey='

{
  "status": "OK",
  "data": {
    "lastProposedSlot": 12771116,
    "currentSlot": 12771115,
    "currentEpoch": 399097,
    "currentFinalizedEpoch": 399094,
    "finalityDelay": 3,
    "syncing": false,
    "rates": {
      "tickerCurrency": "USD",
      "tickerCurrencySymbol": "$",
      "selectedCurrency": "ETH",
      "selectedCurrencySymbol": "ETH",
      "mainCurrency": "ETH",
      "mainCurrencySymbol": "ETH",
      "mainCurrencyPrice": 1,
      "mainCurrencyPriceFormatted": "1",
      "mainCurrencyKFormatted": "1",
      "mainCurrencyTickerPrice": 4366.60356702,
      "mainCurrencyTickerPriceFormatted": "4<span class=\"thousands-separator\"></span>366",
      "mainCurrencyTickerPriceKFormatted": "4<span class=\"thousands-separator\"></span>366",
      "elCurrency": "ETH",
      "elCurrencySymbol": "ETH",
      "elCurrencyPrice": 1,
      "elCurrencyPriceFormatted": "1",
      "elCurrencyKFormatted": "1",
      "clCurrency": "ETH",
      "clCurrencySymbol": "ETH",
      "clCurrencyPrice": 1,
      "clCurrencyPriceFormatted": "1",
      "clCurrencyKFormatted": "1",
      "mainCurrencyTickerPrices": {}
    }
  }
}