curl --request GET \
  --url https://{defaultHost}/plans \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": "<string>",
      "created_at": "<string>",
      "updated_at": "<string>",
      "visibility": "<string>",
      "plan_type": "<string>",
      "release_method": "<string>",
      "currency": "<string>",
      "account": {},
      "product": {},
      "invoice": {},
      "billing_period": 123,
      "title": "<string>",
      "description": "<string>",
      "purchase_url": "<string>",
      "expiration_days": 123,
      "initial_price": 123,
      "renewal_price": 123,
      "trial_period_days": 123,
      "three_ds_level": "<string>",
      "member_count": 123,
      "internal_notes": "<string>",
      "metadata": {},
      "stock": 123,
      "unlimited_stock": true,
      "split_pay_required_payments": 123,
      "adaptive_pricing_enabled": true,
      "payment_method_configuration": {}
    }
  ],
  "page_info": {
    "end_cursor": "<string>",
    "start_cursor": "<string>",
    "has_next_page": true,
    "has_previous_page": true
  }
}