curl --request GET \
  --url https://api.upstackdata.com/accounts/api/products/search \
  --header 'x-api-key: <api-key>' \
  --header 'x-pixel-id: <api-key>'

{
  "items": [
    {
      "id": "<string>",
      "title": "<string>",
      "vendor": "<string>",
      "variants": [
        {
          "id": "<string>",
          "productId": "<string>",
          "sku": "<string>",
          "title": "<string>",
          "handlingFee": 123,
          "manualCostHistory": [
            {
              "id": "<string>",
              "cost": 123,
              "effectiveStartDate": "<string>",
              "effectiveEndDate": "<string>",
              "description": "<string>"
            }
          ]
        }
      ]
    }
  ],
  "nextCursor": "<string>"
}