{
  "service": "pkey variant generator API",
  "authentication": "none",
  "rate_limit": {
    "limit": 1000,
    "window_seconds": 3600,
    "scope": "client_ip",
    "policy": "sliding_window"
  },
  "endpoints": {
    "POST /api/generate": {
      "body": {
        "key": "25位密钥",
        "count": 1,
        "mode": "random"
      }
    },
    "GET /api/status": "查询当前 IP 的滚动窗口配额"
  }
}