diff --git a/nvflare/client/__init__.py b/nvflare/client/__init__.py
index 50411ce3c9..a71b3d68e3 100644
--- a/nvflare/client/__init__.py
+++ b/nvflare/client/__init__.py
@@ -22,6 +22,7 @@
 from .api import get_config as get_config
 from .api import get_job_id as get_job_id
 from .api import get_site_name as get_site_name
+from .api import get_task_name as get_task_name
 from .api import init as init
 from .api import is_evaluate as is_evaluate
 from .api import is_running as is_running
diff --git a/tests/unit_test/client/package_exports_test.py b/tests/unit_test/client/package_exports_test.py
new file mode 100644
index 0000000000..35bed3f788
--- /dev/null
+++ b/tests/unit_test/client/package_exports_test.py
@@ -0,0 +1,43 @@
+# Copyright (c) 2026, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+import pytest
+
+import nvflare.client as flare
+from nvflare.client import api
+
+
+class TestPackageExports:
+    """The public Client API surface named by the rank contract must be importable from the package."""
+
+    @pytest.mark.parametrize(
+        "name",
+        [
+            "init",
+            "receive",
+            "send",
+            "log",
+            "shutdown",
+            "is_running",
+            "get_task_name",
+            "is_train",
+            "is_evaluate",
+            "is_submit_model",
+        ],
+    )
+    def test_control_api_is_the_api_function(self, name):
+        # assert identity, not mere presence: a refactor that rebinds one of these
+        # names to a different object (or leaves a transitively-imported submodule
+        # attribute shadowing it) must fail here.
+        assert hasattr(flare, name), f"nvflare.client must export {name}"
+        assert getattr(flare, name) is getattr(api, name), f"nvflare.client.{name} must be nvflare.client.api.{name}"