diff --git a/console/frontend/src/App.tsx b/console/frontend/src/App.tsx
index 3e5da0e..960e176 100644
--- a/console/frontend/src/App.tsx
+++ b/console/frontend/src/App.tsx
@@ -11,6 +11,7 @@ import {
   LogoutOutlined,
   SettingOutlined,
   HistoryOutlined,
+  BookOutlined,
 } from "@ant-design/icons";
 import { health, logout, me } from "./api.ts";
 import { SettingsModal } from "./components/SettingsModal.tsx";
@@ -36,6 +37,7 @@ const PAGE_META: Record<string, { title: string; subtitle: string }> = {
   "/mailboxes": { title: "邮箱", subtitle: "收件地址、保留策略与邮箱级 Webhook" },
   "/inboxs": { title: "收件箱", subtitle: "已接收邮件(默认保留 1 天,可点保留永不过期),支持按域名筛选" },
   "/logs": { title: "日志", subtitle: "账号 / 域名 / 邮箱 / Webhook 的操作记录(最多保留 10000 条)" },
+  "/docs": { title: "文档", subtitle: "MCP 与 Console API(/api/v1)使用说明" },
 };
 
 /** # 成员变量: 主题切换按钮的太阳/月亮 SVG 图标 **/
@@ -104,6 +106,14 @@ export function App() {
               <div className="subtitle">{meta.subtitle}</div>
             </div>
             <div style={{ display: "flex", alignItems: "center", gap: 14 }}>
+              {/* 文档入口:MCP / API 说明页,位于主题切换左侧 */}
+              <Button
+                type="text"
+                aria-label="打开文档"
+                title="API 与 MCP 文档"
+                icon={<BookOutlined />}
+                onClick={() => navigate("/docs")}
+              />
               {/* 主题切换:亮↔暗,位于头像左侧 */}
               <Button
                 type="text"
diff --git a/console/frontend/src/main.tsx b/console/frontend/src/main.tsx
index 0a0374e..27dcebb 100644
--- a/console/frontend/src/main.tsx
+++ b/console/frontend/src/main.tsx
@@ -15,6 +15,7 @@ import { DomainsPage } from "./pages/Domains.tsx";
 import { MailboxesPage } from "./pages/Mailboxes.tsx";
 import { InboxPage } from "./pages/Inbox.tsx";
 import { LogsPage } from "./pages/Logs.tsx";
+import { DocsPage } from "./pages/Docs.tsx";
 import { setUnauthorizedHandler } from "./api.ts";
 
 /** # 成员变量: 路由表(邮件页路由 /inboxs,v2.1.0) **/
@@ -30,6 +31,7 @@ const router = createBrowserRouter([
       { path: "mailboxes", element: <MailboxesPage /> },
       { path: "inboxs", element: <InboxPage /> },
       { path: "logs", element: <LogsPage /> },
+      { path: "docs", element: <DocsPage /> },
     ],
   },
 ]);
diff --git a/console/frontend/src/pages/Docs.tsx b/console/frontend/src/pages/Docs.tsx
new file mode 100644
index 0000000..9992535
--- /dev/null
+++ b/console/frontend/src/pages/Docs.tsx
@@ -0,0 +1,159 @@
+/**
+ * 文档页(/docs,v2.7.0):MCP 与 Console API(/api/v1)的使用说明。
+ * 纯静态展示,接口地址按当前访问 origin 动态拼接;顶栏文档图标进入。
+ */
+import { Alert, Card, Space, Table, Tag, Typography } from "antd";
+import { KeyOutlined, ApiOutlined, CodeOutlined } from "@ant-design/icons";
+
+/** # 成员变量: 接口基地址与 MCP 端点(跟随当前访问域名) **/
+const API_BASE = `${window.location.origin}/api/v1`;
+const MCP_URL = `${window.location.origin}/api/v1/mcp`;
+
+/** # 成员变量: MCP 工具清单(与 /api/v1/mcp tools/list 一致) **/
+const MCP_TOOLS = [
+  { name: "list_mailboxes", params: "—", desc: "列出所有邮箱(域名、catch-all 标记、保留秒数)" },
+  { name: "list_emails", params: "mailbox_id? / limit?", desc: "列出未过期邮件,limit 默认 20、最大 100" },
+  { name: "get_email", params: "id", desc: "单封邮件详情(正文 + 附件元数据);过期邮件报错" },
+  { name: "create_mailbox", params: "domain_id / address / retention_seconds?", desc: "创建邮箱;address 可传本地部分或完整地址,保留默认 86400 秒" },
+  { name: "delete_mailbox", params: "id", desc: "删除邮箱" },
+];
+
+/** # 成员变量: REST API 端点清单(与 routes/apiv1.ts 一致) **/
+const API_ENDPOINTS = [
+  { method: "GET", path: "/accounts", desc: "账号列表(不含已撤销)" },
+  { method: "GET", path: "/domains", desc: "域名列表" },
+  { method: "GET", path: "/mailboxes", desc: "邮箱列表" },
+  { method: "POST", path: "/mailboxes", desc: "创建邮箱,body: { domain_id, address, retention_seconds? };409 已存在" },
+  { method: "DELETE", path: "/mailboxes/:id", desc: "删除邮箱" },
+  { method: "GET", path: "/emails", desc: "未过期邮件列表,query: mailbox_id? / limit / offset" },
+  { method: "GET", path: "/emails/:id", desc: "邮件详情 + 附件元数据;410 已过期" },
+];
+
+/** # 函数
+ * 方法名 -> 彩色 Tag
+ */
+function MethodTag({ method }: { method: string }) {
+  const color = method === "GET" ? "blue" : method === "POST" ? "green" : "red";
+  return <Tag color={color} style={{ fontFamily: "ui-monospace, Menlo, monospace", minWidth: 56, textAlign: "center" }}>{method}</Tag>;
+}
+
+/** # 函数
+ * 文档页:认证说明 + MCP 接入(客户端配置、工具清单)+ REST API(端点清单、curl 示例)
+ */
+export function DocsPage() {
+  return (
+    <Space direction="vertical" size={16} style={{ width: "100%" }}>
+      <Card
+        title={
+          <span>
+            <KeyOutlined style={{ marginRight: 8 }} />
+            认证
+          </span>
+        }
+      >
+        <Typography.Paragraph>
+          Console API 与 MCP 共用同一个 <b>API/MCP Key</b>(<code className="mono">wmh_</code> 前缀):右上角头像 →{" "}
+          <b>设置</b> → <b>API / MCP Key</b> 生成。明文仅在生成时显示一次;生成新 Key 后旧 Key 立即失效。
+        </Typography.Paragraph>
+        <Typography.Paragraph>
+          所有请求携带请求头:<code className="mono">Authorization: Bearer wmh_xxxxxxxx</code>
+        </Typography.Paragraph>
+      </Card>
+
+      <Card
+        title={
+          <span>
+            <ApiOutlined style={{ marginRight: 8 }} />
+            MCP 接入(Model Context Protocol)
+          </span>
+        }
+      >
+        <Typography.Paragraph>
+          端点:<code className="mono">{MCP_URL}</code>(Streamable HTTP,JSON-RPC 2.0,协议版本 2025-06-18;仅接受
+          POST,无 SSE 流)
+        </Typography.Paragraph>
+        <Typography.Paragraph style={{ marginBottom: 8 }}>MCP 客户端配置示例:</Typography.Paragraph>
+        <pre className="docs-pre">{`{
+  "mcpServers": {
+    "wmailhub": {
+      "type": "http",
+      "url": "${MCP_URL}",
+      "headers": { "Authorization": "Bearer wmh_你的Key" }
+    }
+  }
+}`}</pre>
+        <Table
+          size="small"
+          rowKey="name"
+          style={{ marginTop: 8 }}
+          pagination={false}
+          columns={[
+            { title: "工具", dataIndex: "name", width: 160, render: (v: string) => <code className="mono">{v}</code> },
+            { title: "参数", dataIndex: "params", width: 260, render: (v: string) => <code className="mono">{v}</code> },
+            { title: "说明", dataIndex: "desc" },
+          ]}
+          dataSource={MCP_TOOLS}
+        />
+      </Card>
+
+      <Card
+        title={
+          <span>
+            <CodeOutlined style={{ marginRight: 8 }} />
+            REST API
+          </span>
+        }
+      >
+        <Typography.Paragraph>
+          基地址:<code className="mono">{API_BASE}</code>
+        </Typography.Paragraph>
+        <Table
+          size="small"
+          rowKey="path"
+          pagination={false}
+          columns={[
+            {
+              title: "方法",
+              dataIndex: "method",
+              width: 90,
+              render: (v: string) => <MethodTag method={v} />,
+            },
+            {
+              title: "路径",
+              dataIndex: "path",
+              width: 220,
+              render: (v: string) => <code className="mono">{v}</code>,
+            },
+            { title: "说明", dataIndex: "desc" },
+          ]}
+          dataSource={API_ENDPOINTS}
+        />
+        <Typography.Paragraph style={{ margin: "16px 0 8px" }}>curl 示例:</Typography.Paragraph>
+        <pre className="docs-pre">{`# 列出邮箱
+curl -H "Authorization: Bearer wmh_你的Key" ${API_BASE}/mailboxes
+
+# 创建邮箱(保留 7 天)
+curl -X POST -H "Authorization: Bearer wmh_你的Key" \\
+  -H "Content-Type: application/json" \\
+  -d '{"domain_id":"dom_xxx","address":"hello","retention_seconds":604800}' \\
+  ${API_BASE}/mailboxes
+
+# 最新 10 封未过期邮件
+curl -H "Authorization: Bearer wmh_你的Key" "${API_BASE}/emails?limit=10"`}</pre>
+      </Card>
+
+      <Alert
+        type="info"
+        showIcon
+        message="备注"
+        description={
+          <ul style={{ margin: 0, paddingLeft: 18 }}>
+            <li>邮件读取强制检查未过期:列表不返回过期邮件,详情对已过期邮件返回 410 Gone。</li>
+            <li>邮箱保留时长默认 86400 秒(1 天);catch-all 邮箱地址形如 <code className="mono">*@域名</code>。</li>
+            <li>常见状态码:401 未认证(Key 缺失或已失效)、404 资源不存在、409 邮箱已存在、410 邮件已过期。</li>
+          </ul>
+        }
+      />
+    </Space>
+  );
+}
diff --git a/console/frontend/src/styles.css b/console/frontend/src/styles.css
index 32978d1..abda52a 100644
--- a/console/frontend/src/styles.css
+++ b/console/frontend/src/styles.css
@@ -151,6 +151,25 @@ body,
   font-size: 12.5px;
 }
 
+/* 文档页代码块:浅灰底,暗色主题换深底 */
+.docs-pre {
+  margin: 0;
+  padding: 12px 14px;
+  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
+  font-size: 12.5px;
+  line-height: 1.7;
+  background: rgba(5, 5, 5, 0.04);
+  border: 1px solid rgba(5, 5, 5, 0.08);
+  border-radius: 8px;
+  overflow-x: auto;
+  white-space: pre;
+}
+
+[data-theme="dark"] .docs-pre {
+  background: rgba(255, 255, 255, 0.06);
+  border-color: rgba(255, 255, 255, 0.14);
+}
+
 .muted {
   color: rgba(0, 0, 0, 0.45);
 }
diff --git a/package.json b/package.json
index f063a76..00d6351 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wmailhub",
-  "version": "2.6.0",
+  "version": "2.7.0",
   "description": "WmailHub - 基于 Cloudflare Email Workers 的轻量邮件接收与转发平台(Console 直连 Email Worker)",
   "private": true,
   "type": "module",
diff --git a/tests/ui-smoke.ts b/tests/ui-smoke.ts
index 74576d5..f563ca7 100644
--- a/tests/ui-smoke.ts
+++ b/tests/ui-smoke.ts
@@ -278,6 +278,31 @@ check("勾选后工具条出现「保留选中(批量保留)」按钮", true);
 await page.waitForTimeout(400);
 await page.screenshot({ path: `${SHOT_DIR}/16-inbox-retain.png` });
 
+// 7. 文档页:顶栏文档图标进入 /docs,含 MCP 与 REST API 说明
+await page.goto(`${BASE}/inboxs`, { waitUntil: "domcontentloaded" });
+await page.waitForSelector(".ant-table-tbody", { timeout: 8000 });
+check("顶栏文档图标存在(主题切换左侧)", (await page.locator("button[aria-label='打开文档']").count()) === 1);
+await page.click("button[aria-label='打开文档']");
+await page.waitForURL(`${BASE}/docs`, { timeout: 8000 });
+await page.waitForSelector(".ant-card:has-text('MCP 接入')", { timeout: 8000 });
+const headerTitle = (await page.locator(".app-header .title").textContent()) ?? "";
+const docsText = (await page.locator(".app-content").innerText()) ?? "";
+check(
+  "文档页内容完整(认证 / MCP 接入 / REST API / mcp 端点)",
+  headerTitle.trim() === "文档" &&
+    docsText.includes("认证") &&
+    docsText.includes("MCP 接入") &&
+    docsText.includes("REST API") &&
+    docsText.includes("/api/v1/mcp") &&
+    docsText.includes("Authorization: Bearer wmh_"),
+);
+check(
+  "文档页两张清单表(5 个 MCP 工具 + 7 个 API 端点)",
+  (await page.locator(".ant-table-tbody tr").count()) >= 12,
+);
+await page.waitForTimeout(500);
+await page.screenshot({ path: `${SHOT_DIR}/17-docs.png` });
+
 await browser.close();
 
 const failed = results.filter((r) => !r.ok);