{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://api-evangelist.github.io/frostbyte/json-schema/frostbyte-credit-balance-schema.json",
  "title": "FrostbyteCreditBalance",
  "description": "Credit balance and expiry for a Frostbyte API key.",
  "type": "object",
  "required": ["key", "credits"],
  "properties": {
    "key": {
      "type": "string",
      "description": "API key identifier (prefix only when displayed)."
    },
    "credits": {
      "type": "integer",
      "minimum": 0,
      "description": "Remaining credit balance for this key."
    },
    "expires_at": {
      "type": "string",
      "format": "date-time",
      "description": "Key expiry timestamp."
    },
    "expires_in": {
      "type": "string",
      "description": "Human-readable expiry duration (e.g. '30 days')."
    },
    "note": {
      "type": "string"
    }
  }
}