diff --git a/bfxapi/websocket/typings.py b/bfxapi/websocket/typings.py
new file mode 100644
index 0000000..f1e39ec
--- /dev/null
+++ b/bfxapi/websocket/typings.py
@@ -0,0 +1,16 @@
+from typing import TypedDict, Optional
+
+class BalanceUpdateStream(TypedDict):
+    AUM: float
+    AUM_NET: float
+
+class WalletUpdateStream(TypedDict):
+    WALLET_TYPE: str
+    CURRENCY: str
+    BALANCE: float
+    UNSETTLED_INTEREST: float
+    BALANCE_AVAILABLE: Optional[float]
+    DESCRIPTION: str
+    META: dict
+
+WalletSnapshotStream = list[WalletUpdateStream]
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