diff --git a/src/core/Client.py b/src/core/Client.py
index b09ea6e..f55867a 100644
--- a/src/core/Client.py
+++ b/src/core/Client.py
@@ -60,6 +60,10 @@ class Client:
     def cid(self):
         return self._cid
 
+    @property
+    def pid(self):
+        return self._cid
+
     @property
     def key(self):
         return self._key
diff --git a/src/core/Client.pyi b/src/core/Client.pyi
index eda44b1..2f0475c 100644
--- a/src/core/Client.pyi
+++ b/src/core/Client.pyi
@@ -46,6 +46,7 @@ class Client:
     def addr(self) -> Tuple[str, int]: ...
     @property
     def cid(self) -> int: ...
+    def pid(self) -> int: ...
     @property
     def key(self) -> str: ...
     @property