curl --request GET \
  --url https://api.zerion.io/v1/gas-prices/ \
  --header 'Authorization: Basic <encoded-value>'

{
  "data": [
    {
      "type": "gas-prices",
      "id": "gas-polygon-classic",
      "attributes": {
        "updated_at": "2023-02-28T19:24:39.000Z",
        "gas_type": "classic",
        "info": {
          "slow": 48000000000,
          "standard": 48000000000,
          "fast": 51000000000,
          "rapid": null
        }
      },
      "relationships": {
        "chain": {
          "links": {
            "related": "https://api.zerion.io/v1/chains/polygon"
          },
          "data": {
            "type": "chains",
            "id": "polygon"
          }
        }
      }
    }
  ],
  "links": {
    "self": "https://api.zerion.io/v1/gas-prices"
  }
}