diff --git a/.mcp.json b/.mcp.json
new file mode 100644
index 0000000..f7cf25b
--- /dev/null
+++ b/.mcp.json
@@ -0,0 +1,9 @@
+{
+  "mcpServers": {
+    "transpyc-tools": {
+      "command": "python",
+      "args": ["MCP/transpyc_mcp/server.py"],
+      "cwd": "D:\\Users\\TermiNexus\\Desktop\\TransPyC"
+    }
+  }
+}
\ No newline at end of file
diff --git a/MCP/README.md b/MCP/README.md
index e283bcd..e3eaf33 100644
--- a/MCP/README.md
+++ b/MCP/README.md
@@ -15,17 +15,18 @@
 | `README.md` | 本文件：总览与快速接入 |
 | `protocol.md` | MCP 协议规范：工具定义、执行约定、输出格式、安全约束 |
 | `tools/` | 各工具的 JSON schema（可选生成，供客户端加载） |
+| `transpyc_mcp/` | MCP 服务器实现（stdio，零依赖） |
 
 ## 快速接入
 
-MCP 服务器（`transpyc-tools`）以 stdio 方式运行于项目根目录：
+项目根目录已创建 `.mcp.json`，客户端（IDE/工具）读取后自动注册 MCP 服务器 `transpyc-tools`（服务器代码位于 `MCP/transpyc_mcp/`，stdio 零依赖，也可手动 `python MCP/transpyc_mcp/server.py` 启动）：
 
 ```json
 {
   "mcpServers": {
     "transpyc-tools": {
       "command": "python",
-      "args": ["-m", "transpyc_mcp.server"],
+      "args": ["MCP/transpyc_mcp/server.py"],
       "cwd": "D:\\Users\\TermiNexus\\Desktop\\TransPyC"
     }
   }
diff --git a/transpyc_mcp/__init__.py b/MCP/transpyc_mcp/__init__.py
similarity index 100%
rename from transpyc_mcp/__init__.py
rename to MCP/transpyc_mcp/__init__.py
diff --git a/transpyc_mcp/server.py b/MCP/transpyc_mcp/server.py
similarity index 98%
rename from transpyc_mcp/server.py
rename to MCP/transpyc_mcp/server.py
index d29122c..70d81ee 100644
--- a/transpyc_mcp/server.py
+++ b/MCP/transpyc_mcp/server.py
@@ -24,7 +24,18 @@ from typing import Any, Callable
 # ---------------------------------------------------------------------------
 # 常量
 # ---------------------------------------------------------------------------
-_ROOT: str = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+def _find_root() -> str:
+    """向上定位项目根（含 Projectrans.py 的目录），兼容服务器位于 MCP/transpyc_mcp 下。"""
+    d: str = os.path.dirname(os.path.abspath(__file__))
+    while True:
+        if os.path.isfile(os.path.join(d, "Projectrans.py")):
+            return d
+        parent: str = os.path.dirname(d)
+        if parent == d:
+            return d
+        d = parent
+
+_ROOT: str = _find_root()
 _TOOLS_JSON: str = os.path.join(_ROOT, 'MCP', 'tools', 'tools.json')
 _COMPILE_TIMEOUT: int = 300
 _RUN_TIMEOUT: int = 30