> For the complete documentation index, see [llms.txt](https://support.cregis.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.cregis.com/cregis-wallet-guide/zh-tw/deveoper-and-payment-engine/manual/configuration.md).
# 配置IP白名單
為確保請求的安全性，需獲取Cregis API服務器的IP地址並將其添加到IP白名單中。Cregis API僅允許白名單中的IP地址訪問。
選擇您創建的項目並點擊“項目”進入API界面。
在“IP白名單”中，點擊“新增組”，輸入IP地址並點擊“保存”，然後使用Google驗證2FA進行身份驗證。
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