curl --request GET \
  --url https://supply-api.compute-index.com/available_storage \
  --header 'Authorization: Bearer <token>'

{
  "vendors": [
    {
      "vendor": "<string>",
      "region": "<string>",
      "options": [
        {
          "storage_type": "<string>",
          "storage_class": "<string>",
          "vendor_class": "<string>",
          "price_per_gb_month": 123,
          "hourly_cost_per_gb": 123,
          "constraints": [
            "<string>"
          ]
        }
      ]
    }
  ],
  "total_options": 123
}