diff --git a/server/mergin/stats/tasks.py b/server/mergin/stats/tasks.py
index 4770a90e..345d68cd 100644
--- a/server/mergin/stats/tasks.py
+++ b/server/mergin/stats/tasks.py
@@ -64,6 +64,7 @@ def send_statistics():
         "workspaces_count": current_app.ws_handler.workspace_count(),
         "last_change": str(last_change_item.updated) + "Z" if last_change_item else "",
         "server_version": current_app.config["VERSION"],
+        "monthly_contributors": current_app.ws_handler.monthly_contributors_count(),
     }
 
     try:
diff --git a/server/mergin/sync/interfaces.py b/server/mergin/sync/interfaces.py
index 8084b091..4cf12650 100644
--- a/server/mergin/sync/interfaces.py
+++ b/server/mergin/sync/interfaces.py
@@ -154,6 +154,13 @@ def workspace_count():
         """
         pass
 
+    @staticmethod
+    def monthly_contributors_count():
+        """
+        Return number of workspace contributors in current month and year
+        """
+        pass
+
 
 class AbstractProjectHandler(ABC):
     @abstractmethod
diff --git a/server/mergin/sync/workspace.py b/server/mergin/sync/workspace.py
index 86360fef..18dcd8f2 100644
--- a/server/mergin/sync/workspace.py
+++ b/server/mergin/sync/workspace.py
@@ -248,6 +248,10 @@ def filter_projects(
     def workspace_count():
         return 1
 
+    @staticmethod
+    def monthly_contributors_count():
+        return 0
+
     def projects_query(self, name=None, workspace=None):
         ws = self.factory_method()
         query = db.session.query(
diff --git a/server/mergin/tests/test_statistics.py b/server/mergin/tests/test_statistics.py
index b952039b..053a3695 100644
--- a/server/mergin/tests/test_statistics.py
+++ b/server/mergin/tests/test_statistics.py
@@ -46,10 +46,12 @@ def test_send_statistics(app, caplog):
             "workspaces_count",
             "last_change",
             "server_version",
+            "monthly_contributors",
         }
         assert data["workspaces_count"] == 1
         assert data["service_uuid"] == app.config["SERVICE_ID"]
         assert data["licence"] == "ce"
+        assert data["monthly_contributors"] == 0
 
         # repeated action does not do anything
         task = send_statistics.s().apply()