# API和用戶名密碼的驗證方式有什麼區別？

### API：

1\. 需要添加白名單 IP，以允許來自白名單 IP 地址的請求訪問代理服務。

2\. API每個請求之間的間隔爲 1 秒，代理列表最多可生成 900 個。

3\. 如果是 GB 套餐，則是每次新請求更換 IP；如果是 IP 套餐，則是每 5 分鐘更換一次IP。

### 用戶名密碼：

1\. 需要創建子賬戶，以允許用戶通過子賬戶的用戶名和密碼訪問代理服務。

2\. 代理列表最多可生成 10000 個。

3\. 如果是 GB 套餐，輪換IP選項是每次新請求更換IP；粘性IP選項默認 5 分鐘，可自定義時間 5-180 分鐘，時間到 IP 會更換。此外，IP 套餐僅支持粘性 IP 選項，可自定義時間 5-60 分鐘。


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