List Supported Countries

{
  "type": "object",
  "properties": {
    "countries": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "currencies": {
            "type": "array",
            "items": {
              "type": "string",
              "description": "Valid ISO 4217 3 letter currency code. See the <a href=\"https://www.iso.org/iso-4217-currency-codes.html\" target=\"_blank\" a>ISO specification</a> for details."
            }
          },
          "isoCountryCode": {
            "type": "string",
            "description": "Valid ISO 3166 2 character country code. See the <a href=\"https://www.iso.org/iso-3166-country-codes.html\" target=\"_blank\" a>ISO specification</a> for details."
          }
        }
      }
    }
  }
}