diff --git a/API.md b/API.md
index 1bdc314..f3fed0a 100644
--- a/API.md
+++ b/API.md
@@ -49,6 +49,8 @@ Content-Type: application/json
 | `stream` | boolean | ❌ | 是否流式输出，默认 `false` |
 | `temperature` | number | ❌ | 温度参数，0-2 |
 | `max_tokens` | number | ❌ | 最大输出 token 数 |
+| `tools` | array | ❌ | 工具定义列表（OpenAI 格式） |
+| `tool_choice` | string | ❌ | 工具选择策略 |
 
 **支持的模型**:
 
@@ -111,6 +113,54 @@ data: [DONE]
 }
 ```
 
+**工具调用请求示例**:
+
+```json
+{
+  "model": "deepseek-chat",
+  "messages": [{"role": "user", "content": "北京今天天气怎么样？"}],
+  "tools": [{
+    "type": "function",
+    "function": {
+      "name": "get_weather",
+      "description": "获取指定城市的天气",
+      "parameters": {
+        "type": "object",
+        "properties": {
+          "location": {"type": "string", "description": "城市名称"}
+        },
+        "required": ["location"]
+      }
+    }
+  }]
+}
+```
+
+**工具调用响应格式**:
+
+```json
+{
+  "id": "chatcmpl-xxx",
+  "object": "chat.completion",
+  "choices": [{
+    "index": 0,
+    "message": {
+      "role": "assistant",
+      "content": null,
+      "tool_calls": [{
+        "id": "call_xxx",
+        "type": "function",
+        "function": {
+          "name": "get_weather",
+          "arguments": "{\"location\": \"北京\"}"
+        }
+      }]
+    },
+    "finish_reason": "tool_calls"
+  }]
+}
+```
+
 ---
 
 ## 管理接口
diff --git a/core/config.py b/core/config.py
index de74f2c..83e02ca 100644
--- a/core/config.py
+++ b/core/config.py
@@ -101,3 +101,6 @@ WASM_PATH = resolve_path("DS2API_WASM_PATH", "sha3_wasm_bg.7b9ca65ddd.wasm")
 
 # 模板目录
 TEMPLATES_DIR = resolve_path("DS2API_TEMPLATES_DIR", "templates")
+
+# WebUI 静态文件目录
+STATIC_ADMIN_DIR = resolve_path("DS2API_STATIC_ADMIN_DIR", "static/admin")
diff --git a/routes/home.py b/routes/home.py
index cb08c73..69dce7f 100644
--- a/routes/home.py
+++ b/routes/home.py
@@ -1,9 +1,11 @@
 # -*- coding: utf-8 -*-
-"""首页路由"""
+"""首页和 WebUI 路由"""
+import os
 from fastapi import APIRouter, Request
+from fastapi.responses import HTMLResponse, FileResponse
 from fastapi.templating import Jinja2Templates
 
-from core.config import TEMPLATES_DIR
+from core.config import TEMPLATES_DIR, STATIC_ADMIN_DIR
 
 router = APIRouter()
 templates = Jinja2Templates(directory=TEMPLATES_DIR)
@@ -12,3 +14,29 @@ templates = Jinja2Templates(directory=TEMPLATES_DIR)
 @router.get("/")
 def index(request: Request):
     return templates.TemplateResponse("welcome.html", {"request": request})
+
+
+@router.get("/webui")
+@router.get("/webui/{path:path}")
+async def webui(request: Request, path: str = ""):
+    """提供 WebUI 静态文件"""
+    # 检查 static/admin 目录是否存在
+    if not os.path.isdir(STATIC_ADMIN_DIR):
+        return HTMLResponse(
+            content="<h1>WebUI not built</h1><p>Run <code>cd webui && npm run build</code> first.</p>",
+            status_code=404
+        )
+    
+    # 如果请求的是具体文件（如 js, css）
+    if path and "." in path:
+        file_path = os.path.join(STATIC_ADMIN_DIR, path)
+        if os.path.isfile(file_path):
+            return FileResponse(file_path)
+        return HTMLResponse(content="Not Found", status_code=404)
+    
+    # 否则返回 index.html（SPA 路由）
+    index_path = os.path.join(STATIC_ADMIN_DIR, "index.html")
+    if os.path.isfile(index_path):
+        return FileResponse(index_path)
+    
+    return HTMLResponse(content="index.html not found", status_code=404)
diff --git a/tests/README.md b/tests/README.md
index 6823132..d02a19a 100644
--- a/tests/README.md
+++ b/tests/README.md
@@ -36,6 +36,9 @@ python3 tests/test_unit.py
 - WASM 缓存
 - 模型配置获取
 - 正则表达式模式
+- 流式响应解析
+- **工具调用解析**（`parse_tool_calls`）
+- **Token 估算**
 
 ### 运行 API 集成测试
 
@@ -58,9 +61,11 @@ python3 tests/test_all.py --verbose
 | 类别 | 测试项 |
 |-----|--------|
 | 基础 | 服务健康检查 |
-| OpenAI | 模型列表、非流式对话、流式对话、无效模型处理、认证错误 |
+| OpenAI | 模型列表、非流式对话、流式对话、无效模型处理、认证错误、Reasoner 模式 |
 | Claude | 模型列表、非流式消息、流式消息、Token 计数 |
-| 高级 | 多轮对话、长输入处理、Reasoner 模式 |
+| 高级 | 多轮对话、长输入处理 |
+| **工具调用** | OpenAI 工具调用（流式/非流式）、Claude 工具调用 |
+| **搜索模式** | OpenAI 搜索模式 |
 
 ### 运行账号测试
 
@@ -93,7 +98,7 @@ python3 tests/test_accounts.py --all
 ### 单元测试
 
 ```
-Ran 13 tests in 8.685s
+Ran 32 tests in 9.0s
 OK
 ```
 
@@ -101,10 +106,10 @@ OK
 
 ```
 📊 测试报告
-总计: 10 个测试
-✅ 通过: 10
+总计: 18 个测试
+✅ 通过: 18
 ❌ 失败: 0
-⏱️  耗时: 15.32s
+⏱️  耗时: ~60s
 📈 通过率: 100.0%
 ```
 
diff --git a/vercel.json b/vercel.json
index ec6aded..5cfae21 100644
--- a/vercel.json
+++ b/vercel.json
@@ -1,15 +1,24 @@
 {
   "version": 2,
+  "buildCommand": "cd webui && npm install && npm run build",
   "builds": [
     {
       "src": "app.py",
       "use": "@vercel/python"
+    },
+    {
+      "src": "static/admin/**",
+      "use": "@vercel/static"
     }
   ],
   "routes": [
+    {
+      "src": "/webui/assets/(.*)",
+      "dest": "/static/admin/assets/$1"
+    },
     {
       "src": "/(.*)",
       "dest": "app.py"
     }
   ]
-}
+}
\ No newline at end of file
diff --git a/webui/vite.config.js b/webui/vite.config.js
index fee49b5..7c5b088 100644
--- a/webui/vite.config.js
+++ b/webui/vite.config.js
@@ -22,4 +22,5 @@ export default defineConfig({
         outDir: '../static/admin',
         emptyOutDir: true,
     },
+    base: '/webui/',
 })