diff --git a/frbvoe/cli/main.py b/frbvoe/cli/main.py
index c0f09a0..e1c4c89 100644
--- a/frbvoe/cli/main.py
+++ b/frbvoe/cli/main.py
@@ -3,6 +3,8 @@
 import click
 
 from frbvoe.cli.voe import voe
+from frbvoe.cli.tns import tns
+from frbvoe.cli.subscriber import subscriber
 
 
 @click.group()
@@ -18,3 +20,5 @@ def version():
 
 
 cli.add_command(voe)
+cli.add_command(tns)
+cli.add_command(subscriber)
diff --git a/frbvoe/cli/subscriber.py b/frbvoe/cli/subscriber.py
index b057430..a2e8173 100644
--- a/frbvoe/cli/subscriber.py
+++ b/frbvoe/cli/subscriber.py
@@ -1,6 +1,7 @@
 """Subscriber CLI."""
 
 import click
+from backend.subscriber import add_subscriber, delete_subscriber
 
 @click.group(name="subscriber", help="Subscriber Tools.")
 
@@ -14,8 +15,10 @@ def subscriber():
 
 def add(subscriber_name, subscriber_email):
     """Add subscriber."""
+    add_subscriber(subscriber_name, subscriber_email)
     click.echo(f"Saved subscriber {subscriber_name} with email {subscriber_email} to the database.")
     
-def remove(subscriber_name, subscriber_email):
-    """Remove subscriber."""
-    click.echo(f"Removed subscriber {subscriber_name} with email {subscriber_email} from the database.")
\ No newline at end of file
+def delete(subscriber_name, subscriber_email):
+    """Delete subscriber."""
+    delete_subscriber(subscriber_name, subscriber_email)
+    click.echo(f"De subscriber {subscriber_name} with email {subscriber_email} from the database.")
\ No newline at end of file
diff --git a/frbvoe/cli/tns.py b/frbvoe/cli/tns.py
index 61c5565..344e9fb 100644
--- a/frbvoe/cli/tns.py
+++ b/frbvoe/cli/tns.py
@@ -10,16 +10,19 @@ def tns():
     """Manage workflow pipelines."""
     pass
 
-
 @tns.command("submit", help="Submit an FRB to the TNS.")
 @click.option(
-    "--period", default=10, help="Proprietary period of the FRB.", show_default=True
-)
+    "--period",
+    default=10,
+    help="Proprietary period of the FRB.",
+    show_default=True
+    )
 @click.option(
     "--sandbox",
     help="Submit to the sandbox TNS (if True) or live TNS (if False).",
     show_default=True,
-)
+    )
+
 def submit(proprietary_period, sandbox):
     """Submit an FRB to the TNS."""
     TNS.submit(proprietary_period, sandbox)
diff --git a/frbvoe/cli/voe.py b/frbvoe/cli/voe.py
index a6d26fb..18748ac 100644
--- a/frbvoe/cli/voe.py
+++ b/frbvoe/cli/voe.py
@@ -8,17 +8,25 @@ def voe():
     """Manage workflow pipelines."""
     pass
 
-
 @voe.command("send", help="Send VOEvent.")
-@click.option("--hostname", default="localhost", help="Destination to send the VOE.")
-@click.option("--port", default=8098, help="Port to send the VOE.")
+@click.option(
+    "--hostname", 
+    default="localhost", 
+    help="Destination to send the VOE."
+    )
+@click.option(
+    "--port", 
+    default=8098, 
+    help="Port to send the VOE."
+    )
 @click.option(
     "--file",
     default="./voe",
     type=click.File("r"),
     help="VOEvent file.",
     show_default=True,
-)
+    )
+
 def send(hostname, port):
     """Send VOEvent."""
     click.echo(f"Send VOEvent.{hostname}:{port}")