diff --git a/litellm/py.typed b/litellm/py.typed
new file mode 100644
index 000000000..5686005ab
--- /dev/null
+++ b/litellm/py.typed
@@ -0,0 +1,2 @@
+# Marker file to instruct type checkers to look for inline type annotations in this package.
+# See PEP 561 for more information.
diff --git a/pyproject.toml b/pyproject.toml
index c34664039..a472ae195 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,6 +5,10 @@ description = "Library to easily interface with LLM API providers"
 authors = ["BerriAI"]
 license = "MIT"
 readme = "README.md"
+packages = [
+    { include = "litellm" },
+    { include = "litellm/py.typed"},
+]
 
 [tool.poetry.urls]
 homepage = "https://litellm.ai"