diff --git a/packages/zoo/src/pyearthtools/zoo/__init__.py b/packages/zoo/src/pyearthtools/zoo/__init__.py
index fde55ed6..f7e659a5 100644
--- a/packages/zoo/src/pyearthtools/zoo/__init__.py
+++ b/packages/zoo/src/pyearthtools/zoo/__init__.py
@@ -87,7 +87,7 @@ class MODEL():
 
 Models = utils.AvailableModels()
 
-from pyearthtools.zoo.commands import commands  # pylint: disable=C0413 # noqa: E402
+from pyearthtools.zoo import commands  # pylint: disable=C0413 # noqa: E402
 from pyearthtools.zoo.predict import (  # pylint: disable=C0413  # noqa: E402
     data,
     interactive,
diff --git a/packages/zoo/src/pyearthtools/zoo/commands/__init__.py b/packages/zoo/src/pyearthtools/zoo/commands/__init__.py
index 1724490e..11aa5285 100644
--- a/packages/zoo/src/pyearthtools/zoo/commands/__init__.py
+++ b/packages/zoo/src/pyearthtools/zoo/commands/__init__.py
@@ -16,7 +16,7 @@
 `pyearthtools.zoo` commands.
 """
 
-from pyearthtools.zoo.commands import utils, commands
-from pyearthtools.zoo.commands.commands import entry_point
+# CLI entry point for 'pet' as defined in pyproject.toml for zoo
+from ._commands import entry_point
 
-__all__ = ["utils", "commands", "entry_point"]
+__all__ = ["entry_point"]
diff --git a/packages/zoo/src/pyearthtools/zoo/commands/utils.py b/packages/zoo/src/pyearthtools/zoo/commands/_cmd_utils.py
similarity index 100%
rename from packages/zoo/src/pyearthtools/zoo/commands/utils.py
rename to packages/zoo/src/pyearthtools/zoo/commands/_cmd_utils.py
diff --git a/packages/zoo/src/pyearthtools/zoo/commands/commands.py b/packages/zoo/src/pyearthtools/zoo/commands/_commands.py
similarity index 95%
rename from packages/zoo/src/pyearthtools/zoo/commands/commands.py
rename to packages/zoo/src/pyearthtools/zoo/commands/_commands.py
index edfe7431..47fc171f 100644
--- a/packages/zoo/src/pyearthtools/zoo/commands/commands.py
+++ b/packages/zoo/src/pyearthtools/zoo/commands/_commands.py
@@ -34,7 +34,8 @@
 import click
 
 import pyearthtools.zoo
-from pyearthtools.zoo.commands import utils as command_utils
+
+from . import _cmd_utils as command_utils
 from pyearthtools.zoo.utils import AvailableModels
 
 available_models = AvailableModels()
@@ -62,6 +63,10 @@ def entry_point(debug, info):
 
 @entry_point.command("models", help="Print available models.")
 def models():
+    list_models()
+
+
+def list_models():
     from pyearthtools.zoo.register import dynamic_import
 
     dynamic_import()
@@ -73,6 +78,7 @@ def models():
 
     print(_models)
     print("(Specify category with a '/' seperation.)")
+
     sys.exit(0)
 
 
@@ -116,7 +122,11 @@ def models():
     default=None,
     help="Override for config path",
 )
-def run_predict(
+def run_predict():
+    cmd_run_predict()
+
+
+def cmd_run_predict(
     ctx,
     model: str,
     time: str,
@@ -127,9 +137,6 @@ def run_predict(
 ):
     ctx_kwargs = command_utils.get_keyword_from_ctx(ctx)
 
-    if "data" in ctx_kwargs:
-        raise ValueError("data has been deprecated as an argument for `predict`, use `data`.")
-
     predictions = pyearthtools.zoo.predict(
         model,
         time,
@@ -200,7 +207,11 @@ def run_predict(
     default=None,
     help="Override for config path",
 )
-def interactive(
+def interactive():
+    cmd_interactive()
+
+
+def cmd_interactive(
     ctx,
     model: str,
     time: str,
@@ -277,6 +288,10 @@ def interactive(
     help="Override for config path",
 )
 def data(ctx, model, time, pipeline, data_cache, config_path: str | Path):
+    cmd_data(ctx, model, time, pipeline, data_cache, config_path)
+
+
+def cmd_data(ctx, model, time, pipeline, data_cache, config_path: str | Path):
     ctx_kwargs = command_utils.get_keyword_from_ctx(ctx)
     _ = pyearthtools.zoo.data(model, time, pipeline, data_cache, config_path=config_path, **ctx_kwargs)
 
diff --git a/packages/zoo/src/pyearthtools/zoo/predict.py b/packages/zoo/src/pyearthtools/zoo/predict.py
index 50326ba7..5d14b5e8 100644
--- a/packages/zoo/src/pyearthtools/zoo/predict.py
+++ b/packages/zoo/src/pyearthtools/zoo/predict.py
@@ -27,7 +27,7 @@
 import warnings
 
 import pyearthtools.zoo
-from pyearthtools.zoo.commands import utils as command_utils
+from pyearthtools.zoo.commands import _cmd_utils as command_utils
 from pyearthtools.zoo import utils, exceptions
 from pyearthtools.zoo.register import dynamic_import
 
diff --git a/packages/zoo/tests/models/utils/test_args_to_dict.py b/packages/zoo/tests/commands/test_args_to_dict.py
similarity index 83%
rename from packages/zoo/tests/models/utils/test_args_to_dict.py
rename to packages/zoo/tests/commands/test_args_to_dict.py
index 257415c7..ac8489b5 100644
--- a/packages/zoo/tests/models/utils/test_args_to_dict.py
+++ b/packages/zoo/tests/commands/test_args_to_dict.py
@@ -14,6 +14,8 @@
 
 import pytest
 
+from pyearthtools.zoo import commands
+
 tests = [
     (("--test", "value"), {"test": "value"}),  # Single argument
     (
@@ -37,28 +39,24 @@
 
 @pytest.mark.parametrize("args, result", tests)
 def test_parse_args_to_dict(args, result):
-    from pyearthtools.zoo.commands import utils
-
-    assert utils.parse_args_to_dict(*args) == result
+    assert commands._cmd_utils.parse_args_to_dict(*args) == result
 
 
 @pytest.mark.parametrize("args, result", tests)
 def test_get_keyword_from_ctx(args, result):
-    from pyearthtools.zoo.commands import utils
     import click
 
     class FakeContext(click.Context):
         def __init__(self, args):
             self.args = args
 
-    assert utils.get_keyword_from_ctx(FakeContext(args)) == result
+    assert commands._cmd_utils.get_keyword_from_ctx(FakeContext(args)) == result
 
 
 @pytest.mark.parametrize("args, result", tests)
 def test_parse_str_to_dict(args, result):
-    from pyearthtools.zoo.commands import utils
 
-    assert utils.parse_str_to_dict(" ".join(args)) == result
+    assert commands._cmd_utils.parse_str_to_dict(" ".join(args)) == result
 
 
 @pytest.mark.parametrize(
@@ -72,7 +70,6 @@ def test_parse_str_to_dict(args, result):
     ],
 )
 def test_parse_args_to_dict_fail(args):
-    from pyearthtools.zoo.commands import utils
 
     with pytest.raises(KeyError):
-        utils.parse_args_to_dict(*args)
+        commands._cmd_utils.parse_args_to_dict(*args)
diff --git a/packages/zoo/tests/commands/test_commands.py b/packages/zoo/tests/commands/test_commands.py
new file mode 100644
index 00000000..6c87fbc1
--- /dev/null
+++ b/packages/zoo/tests/commands/test_commands.py
@@ -0,0 +1,60 @@
+from collections import namedtuple
+import pytest
+from pyearthtools.zoo.commands import _commands as cmd
+from unittest.mock import patch
+
+from pyearthtools.zoo.exceptions import ModelException
+
+# def test_entry_point():
+
+#     with pytest.raises(SystemExit):
+#         ep = cmd.entry_point(None, None)
+
+
+def test_models():
+
+    with pytest.raises(SystemExit):
+        _m = cmd.list_models()
+
+
+def test_run_predict():
+
+    ctx = namedtuple("Any", ["args", "kwargs"])([], [])
+    model = "nonexistent"
+    time = "2020T010100"
+    output = "tbc"
+    pipeline_name = "tbc"
+    data_cache = "tbc"
+    config_path = "tbc"
+
+    with pytest.raises(ModelException):
+        cmd.cmd_run_predict(ctx, model, time, output, pipeline_name, data_cache, config_path)
+
+
+def test_interactive():
+
+    ctx = namedtuple("Any", ["args", "kwargs"])([], [])
+    model = "nonexistent"
+    time = "2020T010100"
+    output = "tbc"
+    pipeline_name = "tbc"
+    data_cache = "tbc"
+    config_path = "tbc"
+
+    with pytest.raises(AttributeError):
+        with patch("pyearthtools.zoo.available_models", return_value="fake_model"):
+            cmd.cmd_interactive(ctx, model, time, pipeline_name, output, data_cache, config_path)
+
+
+def test_data():
+
+    ctx = namedtuple("Any", ["args", "kwargs"])([], [])
+    model = "nonexistent"
+    time = "2020T010100"
+    _output = "tbc"
+    pipeline_name = "tbc"
+    data_cache = "tbc"
+    config_path = "tbc"
+
+    with pytest.raises(ModelException):
+        cmd.cmd_data(ctx, model, time, pipeline_name, data_cache, config_path)
diff --git a/packages/zoo/tests/test_zoo.py b/packages/zoo/tests/test_zoo.py
new file mode 100644
index 00000000..8dbb67df
--- /dev/null
+++ b/packages/zoo/tests/test_zoo.py
@@ -0,0 +1,5 @@
+from pyearthtools import zoo
+
+
+def test_available_models():
+    _models = zoo.available_models()  # smoke test for now