diff --git a/stubs/cyclone/websocket.pyi b/stubs/cyclone/websocket.pyi
new file mode 100644
--- /dev/null
+++ b/stubs/cyclone/websocket.pyi
@@ -0,0 +1,54 @@
+# Stubs for cyclone.websocket (Python 3)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+import cyclone.escape
+import cyclone.web
+from typing import Any
+
+class _NotEnoughFrame(Exception): ...
+
+class WebSocketHandler(cyclone.web.RequestHandler):
+    application: Any = ...
+    request: Any = ...
+    transport: Any = ...
+    ws_protocol: Any = ...
+    def __init__(self, application: Any, request: Any, **kwargs: Any) -> None: ...
+    def headersReceived(self) -> None: ...
+    def connectionMade(self, *args: Any, **kwargs: Any) -> None: ...
+    def connectionLost(self, reason: Any) -> None: ...
+    def messageReceived(self, message: Any) -> None: ...
+    def sendMessage(self, message: Any) -> None: ...
+    def forbidConnection(self, message: Any): ...
+
+class WebSocketProtocol:
+    handler: Any = ...
+    request: Any = ...
+    transport: Any = ...
+    def __init__(self, handler: Any) -> None: ...
+    def acceptConnection(self) -> None: ...
+    def rawDataReceived(self, data: Any) -> None: ...
+    def sendMessage(self, message: Any) -> None: ...
+
+class WebSocketProtocol17(WebSocketProtocol):
+    def __init__(self, handler: Any) -> None: ...
+    def acceptConnection(self) -> None: ...
+    def rawDataReceived(self, data: Any) -> None: ...
+    def sendMessage(self, message: Any, code: int = ...) -> None: ...
+
+class WebSocketProtocol76(WebSocketProtocol):
+    def __init__(self, handler: Any) -> None: ...
+    def acceptConnection(self) -> None: ...
+    def rawDataReceived(self, data: Any) -> None: ...
+    def close(self) -> None: ...
+    def sendMessage(self, message: Any) -> None: ...
+
+class FrameDecodeError(Exception): ...
+
+class Hixie76FrameDecoder:
+    CLOSING_FRAME: Any = ...
+    WAIT_FOR_FRAME_TYPE: int = ...
+    INSIDE_FRAME: int = ...
+    WAIT_FOR_CLOSE: int = ...
+    def __init__(self) -> None: ...
+    def feed(self, data: Any): ...