{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/paystack/main/json-schema/paystack-plan-schema.json",
  "title": "Paystack Plan",
  "description": "A recurring billing plan customers can be subscribed to.",
  "type": "object",
  "required": ["plan_code", "name", "amount", "interval", "currency"],
  "properties": {
    "id": { "type": "integer" },
    "plan_code": {
      "type": "string",
      "pattern": "^PLN_[a-zA-Z0-9]+$",
      "description": "Paystack-issued plan code (prefixed with PLN_)."
    },
    "name": { "type": "string" },
    "description": { "type": ["string", "null"] },
    "amount": {
      "type": "integer",
      "description": "Plan amount in the lowest denomination of the currency."
    },
    "interval": {
      "type": "string",
      "enum": ["hourly", "daily", "weekly", "monthly", "quarterly", "biannually", "annually"]
    },
    "currency": {
      "type": "string",
      "enum": ["NGN", "USD", "GHS", "ZAR", "KES", "XOF", "EGP"]
    },
    "send_invoices": { "type": "boolean" },
    "send_sms": { "type": "boolean" },
    "hosted_page": { "type": "boolean" },
    "invoice_limit": { "type": "integer" },
    "created_at": { "type": "string", "format": "date-time" }
  }
}