curl --request GET \
  --url https://api.barker.money/api/partner/products/{slug}/apy-history \
  --header 'X-Api-Key: <api-key>'

{
  "success": true,
  "data": [
    {
      "date": "2023-12-25",
      "underlying_apy": "<string>",
      "net_apy_for_user": "<string>"
    }
  ]
}