curl --request GET \
  --url https://api.hubapi.com/settings/v3/currencies/exchange-rates/current \
  --header 'Authorization: Bearer <token>'

{
  "results": [
    {
      "conversionRate": 123,
      "createdAt": "2023-11-07T05:31:56Z",
      "effectiveAt": "2023-11-07T05:31:56Z",
      "id": "<string>",
      "updatedAt": "2023-11-07T05:31:56Z",
      "visibleInUI": true
    }
  ]
}