// POST /admin/tiers/
{
    "tiers": [
        {
            "name": "Platinum",
            "description": "Access to everything",
            "welcome_page_url": "/welcome-to-platinum",
            "visibility": "public",
            "monthly_price": 1000,
            "yearly_price": 10000,
            "currency": "usd",
            "benefits": [
                "Benefit 1",
                "Benefit 2"
            ]
        }
    ]
}

POST /admin/tiers/
Required fields: name Create public and hidden tiers by using this endpoint. New tiers are always set as active when created. The example below creates a paid Tier with all properties including custom monthly/yearly prices, description, benefits, and welcome page. 
// POST /admin/tiers/
{
    "tiers": [
        {
            "name": "Platinum",
            "description": "Access to everything",
            "welcome_page_url": "/welcome-to-platinum",
            "visibility": "public",
            "monthly_price": 1000,
            "yearly_price": 10000,
            "currency": "usd",
            "benefits": [
                "Benefit 1",
                "Benefit 2"
            ]
        }
    ]
}