diff --git a/cl/api/utils.py b/cl/api/utils.py
index 799d607260..6a132fc297 100644
--- a/cl/api/utils.py
+++ b/cl/api/utils.py
@@ -737,7 +737,9 @@ def invert_user_logs(
     dates = make_date_str_list(start, end)
     for d in dates:
         for version in ["v3", "v4"]:
-            pipe.zrange(f"api:{version}.user.d:{d}.counts", 0, -1, withscores=True)
+            pipe.zrange(
+                f"api:{version}.user.d:{d}.counts", 0, -1, withscores=True
+            )
     results = pipe.execute()
 
     # results is a list of results for each of the zrange queries above. Zip
diff --git a/cl/tests/api/utils.py b/cl/tests/api/utils.py
new file mode 100644
index 0000000000..629f61d8a0
--- /dev/null
+++ b/cl/tests/api/utils.py
@@ -0,0 +1,30 @@
+import unittest
+from unittest.mock import MagicMock, patch
+
+class TestApiUsage(unittest.TestCase):
+    def setUp(self):
+        self.start_date = '2023-01-01'
+        self.end_date = '2023-01-07'
+        self.expected_dates = ['2023-01-01', '2023-01-02', '2023-01-03', '2023-01-04', '2023-01-05', '2023-01-06', '2023-01-07']
+        self.v3_results = [('user1', 10), ('user2', 20)]
+        self.v4_results = [('user3', 15), ('user4', 25)]
+
+    @patch('cl.api.utils.get_redis_interface')
+    def test_recent_api_usage(self, mock_get_redis_interface):
+        mock_redis = MagicMock()
+        mock_pipeline = MagicMock()
+        mock_get_redis_interface.return_value = mock_redis
+        mock_redis.pipeline.return_value = mock_pipeline
+
+        mock_pipeline.execute.return_value = [
+            self.v3_results] * len(self.expected_dates) + 
+            [self.v4_results] * len(self.expected_dates)
+
+        results = get_recent_api_usage(self.start_date, self.end_date)
+
+        for date in self.expected_dates:
+            mock_pipeline.zrange.assert_any_call(f"api:v3.user.d:{date}.counts", 0, -1, withscores=True)
+            mock_pipeline.zrange.assert_any_call(f"api:v4.user.d:{date}.counts", 0, -1, withscores=True)
+
+        self.assertIn(('user1', 10), results)
+        self.assertIn(('user3', 15), results)