diff --git a/libs/sdk-py/langgraph_sdk/__init__.py b/libs/sdk-py/langgraph_sdk/__init__.py
index 25ef2935f..d8e8611db 100644
--- a/libs/sdk-py/langgraph_sdk/__init__.py
+++ b/libs/sdk-py/langgraph_sdk/__init__.py
@@ -1,8 +1,30 @@
-from langgraph_sdk.auth import Auth
-from langgraph_sdk.client import get_client, get_sync_client
-from langgraph_sdk.encryption import Encryption
-from langgraph_sdk.encryption.types import EncryptionContext
+from __future__ import annotations
+
+import importlib
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from langgraph_sdk.auth import Auth
+    from langgraph_sdk.client import get_client, get_sync_client
+    from langgraph_sdk.encryption import Encryption
+    from langgraph_sdk.encryption.types import EncryptionContext
 
 __version__ = "0.3.13"
 
 __all__ = ["Auth", "Encryption", "EncryptionContext", "get_client", "get_sync_client"]
+
+_LAZY: dict[str, str] = {
+    "Auth": "langgraph_sdk.auth",
+    "get_client": "langgraph_sdk.client",
+    "get_sync_client": "langgraph_sdk.client",
+    "Encryption": "langgraph_sdk.encryption",
+    "EncryptionContext": "langgraph_sdk.encryption.types",
+}
+
+
+def __getattr__(name: str) -> object:
+    if name in _LAZY:
+        mod = importlib.import_module(_LAZY[name])
+        return getattr(mod, name)
+    msg = f"module {__name__!r} has no attribute {name!r}"
+    raise AttributeError(msg)