diff --git a/trustgraph-cli/scripts/tg-show-flow-classes b/trustgraph-cli/scripts/tg-show-flow-classes
index 7a133dc4..a3671184 100755
--- a/trustgraph-cli/scripts/tg-show-flow-classes
+++ b/trustgraph-cli/scripts/tg-show-flow-classes
@@ -17,6 +17,10 @@ def show_flow_classes(url):
 
     class_names = api.flow_list_classes()
 
+    if len(class_names) == 0:
+        print("No flows.")
+        return
+
     classes = []
 
     for class_name in class_names:
diff --git a/trustgraph-cli/scripts/tg-show-flows b/trustgraph-cli/scripts/tg-show-flows
index e458d798..3313fd7d 100755
--- a/trustgraph-cli/scripts/tg-show-flows
+++ b/trustgraph-cli/scripts/tg-show-flows
@@ -17,6 +17,10 @@ def show_flows(url):
 
     flow_ids = api.flow_list()
 
+    if len(flow_ids) == 0:
+        print("No flows.")
+        return
+
     print(flow_ids)
 
     flows = []
diff --git a/trustgraph-cli/scripts/tg-start-flow b/trustgraph-cli/scripts/tg-start-flow
new file mode 100755
index 00000000..377b7963
--- /dev/null
+++ b/trustgraph-cli/scripts/tg-start-flow
@@ -0,0 +1,71 @@
+#!/usr/bin/env python3
+
+"""
+"""
+
+import argparse
+import os
+import tabulate
+from trustgraph.api import Api
+import json
+
+default_url = os.getenv("TRUSTGRAPH_URL", 'http://localhost:8088/')
+
+def start_flow(url, class_name, flow_id, description):
+
+    api = Api(url)
+
+    api.flow_start(
+        class_name = class_name,
+        id = flow_id,
+        description = description,
+    )
+
+def main():
+
+    parser = argparse.ArgumentParser(
+        prog='tg-start-flow',
+        description=__doc__,
+    )
+
+    parser.add_argument(
+        '-u', '--api-url',
+        default=default_url,
+        help=f'API URL (default: {default_url})',
+    )
+
+    parser.add_argument(
+        '-n', '--class-name',
+        required=True,
+        help=f'Flow class name',
+    )
+
+    parser.add_argument(
+        '-i', '--flow-id',
+        required=True,
+        help=f'Flow ID',
+    )
+
+    parser.add_argument(
+        '-d', '--description',
+        required=True,
+        help=f'Flow description',
+    )
+
+    args = parser.parse_args()
+
+    try:
+
+        start_flow(
+            url = args.api_url,
+            class_name = args.class_name,
+            flow_id = args.flow_id,
+            description = args.description,
+        )
+
+    except Exception as e:
+
+        print("Exception:", e, flush=True)
+
+main()
+
diff --git a/trustgraph-cli/scripts/tg-stop-flow b/trustgraph-cli/scripts/tg-stop-flow
new file mode 100755
index 00000000..cdbaf6ee
--- /dev/null
+++ b/trustgraph-cli/scripts/tg-stop-flow
@@ -0,0 +1,53 @@
+#!/usr/bin/env python3
+
+"""
+"""
+
+import argparse
+import os
+import tabulate
+from trustgraph.api import Api
+import json
+
+default_url = os.getenv("TRUSTGRAPH_URL", 'http://localhost:8088/')
+
+def stop_flow(url, flow_id):
+
+    api = Api(url)
+
+    api.flow_stop(id = flow_id)
+
+def main():
+
+    parser = argparse.ArgumentParser(
+        prog='tg-stop-flow',
+        description=__doc__,
+    )
+
+    parser.add_argument(
+        '-u', '--api-url',
+        default=default_url,
+        help=f'API URL (default: {default_url})',
+    )
+
+    parser.add_argument(
+        '-i', '--flow-id',
+        required=True,
+        help=f'Flow ID',
+    )
+
+    args = parser.parse_args()
+
+    try:
+
+        stop_flow(
+            url=args.api_url,
+            flow_id=args.flow_id,
+        )
+
+    except Exception as e:
+
+        print("Exception:", e, flush=True)
+
+main()
+