diff --git a/docs/.vitepress/config.ts b/docs/.vitepress/config.ts
index a91b54fb..ba2b0676 100644
--- a/docs/.vitepress/config.ts
+++ b/docs/.vitepress/config.ts
@@ -78,15 +78,16 @@ export default defineConfig({
               ]
             },
             { text: "演示教程", link: "/guide/tutorial.md" },
-            { text: "版本升级", link: "/guide/install/upgrade.md" },
-            { text: "切换数据库", link: "/guide/install/database.md" }
+            { text: "版本升级", link: "/guide/install/upgrade.md" }
           ]
         },
         {
           text: "特性",
           items: [
             { text: "CNAME代理校验", link: "/guide/feature/cname/index.md" },
-            { text: "插件列表", link: "/guide/plugins.md" }
+            { text: "插件列表", link: "/guide/plugins.md" },
+            { text: "多数据库支持", link: "/guide/install/database.md" },
+            { text: "开放接口", link: "/guide/open/index.md" }
           ]
         },
         {
diff --git a/docs/guide/open/images/1.png b/docs/guide/open/images/1.png
new file mode 100644
index 00000000..3f89ee5e
Binary files /dev/null and b/docs/guide/open/images/1.png differ
diff --git a/docs/guide/open/index.md b/docs/guide/open/index.md
new file mode 100644
index 00000000..356876ab
--- /dev/null
+++ b/docs/guide/open/index.md
@@ -0,0 +1,19 @@
+# 开放接口
+被动方式对第三方提供证书， 支持根据域名或证书id获取证书。
+
+## 获取keyId和KeySecret
+
+![](./images/1.png)
+
+## 接口文档
+
+https://apifox.com/apidoc/shared-2e76f8c4-7c58-413b-a32d-a1316529af44/254949529e0
+
+## Token生成方法
+
+header中传入x-certd-token即可调用开放接口   
+1、首先从OpenKey页面生成keyId，keySecret；    
+2、准备一个content( json字符串)： content={"keyId":keyId, t:时间戳秒数, encrypt:false, signType:"md5"} `// encrypt返回结果是否加密`   
+3、将content加上keySecret进行签名： sign = md5(content + keySecret)   
+4、然后将content和sign分别base64后用.号连接： x-certd-token = base64(content) +"."+base64(sign)   
+