diff --git a/google/generativeai/py.typed b/google/generativeai/py.typed
new file mode 100644
index 000000000..d57989efb
--- /dev/null
+++ b/google/generativeai/py.typed
@@ -0,0 +1 @@
+# see: https://peps.python.org/pep-0561/
diff --git a/setup.py b/setup.py
index b4b05e619..4d7ef32ca 100644
--- a/setup.py
+++ b/setup.py
@@ -3,7 +3,7 @@
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# You may obtain a copy of the License at:
 #
 #     http://www.apache.org/licenses/LICENSE-2.0
 #
@@ -88,6 +88,7 @@ def get_version():
         "Programming Language :: Python :: 3.12",
         "Operating System :: OS Independent",
         "Topic :: Scientific/Engineering :: Artificial Intelligence",
+        "Typing :: Typed",
     ],
     platforms="Posix; MacOS X; Windows",
     packages=packages,
@@ -97,4 +98,5 @@ def get_version():
     extras_require=extras_require,
     include_package_data=True,
     zip_safe=False,
+    package_data={"generativeai": ["py.typed"]},
 )