curl --request GET \
  --url https://api.gcore.com/cloud/v1/pricing/{project_id}/{region_id}/instances/{instance_id} \
  --header 'Authorization: <api-key>'

{
  "currency_code": "USD",
  "discount_percent": 0.16,
  "price_per_hour": 1,
  "price_per_month": 720,
  "price_status": "show",
  "price_without_discount_per_month": 604.8,
  "tax_percent": 17
}