diff --git a/osgar/tools/get_module_io.py b/osgar/tools/get_module_io.py
new file mode 100644
index 000000000..bfc476b97
--- /dev/null
+++ b/osgar/tools/get_module_io.py
@@ -0,0 +1,34 @@
+"""
+Get OSGAR Node module I/O names
+"""
+from unittest.mock import MagicMock
+import itertools
+
+from osgar.lib.config import get_class_by_name
+
+
+def get_module_io(module_name):
+    klass = get_class_by_name(module_name)
+    inputs = [o[3:] for o in dir(klass) if o.startswith('on_')]
+
+    bus = MagicMock()
+    config = MagicMock()
+    try:
+        klass(bus=bus, config={})
+    except KeyError:
+        pass  # due to missing required config parameters
+
+    outputs = list(itertools.chain.from_iterable([c.args for c in bus.mock_calls]))
+    return inputs, outputs
+
+
+if __name__ == '__main__':
+    import argparse
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument('--name', help='name of the Node class like "doctor:Doctor"', required=True)
+    args = parser.parse_args()
+
+    print('Module:', args.name)
+    i,o = get_module_io(args.name)
+    print('Inputs:', i)
+    print('Outputs:', o)