diff --git a/scaleapi/__init__.py b/scaleapi/__init__.py
index 838edfb..240ac1a 100644
--- a/scaleapi/__init__.py
+++ b/scaleapi/__init__.py
@@ -452,7 +452,7 @@ def get_tasks(
 
     def get_tasks_count(
         self,
-        project_name: str,
+        project_name: str = None,
         batch_name: str = None,
         task_type: TaskType = None,
         status: TaskStatus = None,
@@ -470,7 +470,7 @@ def get_tasks_count(
         """Returns number of tasks with given filters.
 
         Args:
-            project_name (str):
+            project_name (str, optional):
                 Project Name
 
             batch_name (str, optional):
@@ -529,6 +529,11 @@ def get_tasks_count(
                 Returns number of tasks
         """
 
+        if not project_name and not batch_name:
+            raise ValueError(
+                "At least one of project_name or batch_name must be provided."
+            )
+
         tasks_args = self._process_tasks_endpoint_args(
             project_name,
             batch_name,
diff --git a/scaleapi/_version.py b/scaleapi/_version.py
index f04eeb8..64dfb12 100644
--- a/scaleapi/_version.py
+++ b/scaleapi/_version.py
@@ -1,2 +1,2 @@
-__version__ = "2.15.12"
+__version__ = "2.15.13"
 __package_name__ = "scaleapi"
diff --git a/tests/test_client.py b/tests/test_client.py
index e3a007d..f2e88c8 100644
--- a/tests/test_client.py
+++ b/tests/test_client.py
@@ -417,6 +417,13 @@ def test_get_tasks_count():
     assert tasks_count == get_tasks_count
 
 
+def test_get_tasks_count_with_only_batch():
+    batch = create_a_batch()
+    tasks_count = client.tasks(batch=batch.name).total
+    get_tasks_count = client.get_tasks_count(batch_name=batch.name)
+    assert tasks_count == get_tasks_count
+
+
 def test_finalize_batch():
     batch = create_a_batch()
     batch = client.finalize_batch(batch.name)