diff --git a/lang_agent/base.py b/lang_agent/base.py
new file mode 100644
index 0000000..ca51fe0
--- /dev/null
+++ b/lang_agent/base.py
@@ -0,0 +1,9 @@
+from typing import List, Callable
+from abc import ABC, abstractmethod
+
+
+class LangToolBase(ABC):
+
+    @abstractmethod
+    def get_tool_fnc(self)->List[Callable]:
+        pass
\ No newline at end of file