diff --git a/zenpy/lib/api.py b/zenpy/lib/api.py
index fd6b12d..65e4638 100644
--- a/zenpy/lib/api.py
+++ b/zenpy/lib/api.py
@@ -784,7 +784,7 @@ class IncrementalApi(Api):
     IncrementalApi supports the incremental endpoint.
     """
 
-    def incremental(self, start_time, include=None, per_page=None):
+    def incremental(self, start_time, include=None, per_page=None, support_type_scope=None):
         """
         Retrieve bulk data from the incremental API.
 
@@ -794,7 +794,7 @@ def incremental(self, start_time, include=None, per_page=None):
         """
         return self._query_zendesk(self.endpoint.incremental, self.object_type,
                                    start_time=start_time, include=include,
-                                   per_page=per_page)
+                                   per_page=per_page, support_type_scope=support_type_scope)
 
 
 class IncrementalCursorApi(IncrementalApi):
@@ -803,7 +803,8 @@ def incremental(self,
                     paginate_by_time=False,
                     cursor=None,
                     include=None,
-                    per_page=None):
+                    per_page=None,
+                    support_type_scope=None):
         """
         Incrementally retrieve Tickets or Users.
 
@@ -836,6 +837,7 @@ def incremental(self,
         :param include: list of objects to sideload. `Side-loading API Docs
             <https://developer.zendesk.com/rest_api/docs/core/side_loading>`__.
         :param per_page: number of results per page, up to max 1000
+        :param support_type_scope: one of "agent","ai_agent","all". Default: "agent"
         """
         if (all_are_none(start_time, cursor)
                 or all_are_not_none(start_time, cursor)):
@@ -845,21 +847,24 @@ def incremental(self,
         if start_time is not None and paginate_by_time is True:
             return super(IncrementalCursorApi, self).incremental(start_time=start_time,
                                                                  include=include,
-                                                                 per_page=per_page)
+                                                                 per_page=per_page,
+                                                                 support_type_scope=support_type_scope)
 
         elif start_time is not None and paginate_by_time is False:
             return self._query_zendesk(self.endpoint.incremental.cursor_start,
                                        self.object_type,
                                        start_time=start_time,
                                        include=include,
-                                       per_page=per_page)
+                                       per_page=per_page,
+                                       support_type_scope=support_type_scope)
 
         elif cursor and paginate_by_time is False:
             return self._query_zendesk(self.endpoint.incremental.cursor,
                                        self.object_type,
                                        cursor=cursor,
                                        include=include,
-                                       per_page=per_page)
+                                       per_page=per_page,
+                                       support_type_scope=support_type_scope)
         else:
             raise ValueError(
                 "Can't set cursor param and paginate_by_time=True")
@@ -1590,7 +1595,7 @@ def restore(self, tickets):
 
         return self._put(url, payload=None)
 
-    def events(self, start_time, include=None, per_page=None):
+    def events(self, start_time, include=None, per_page=None, support_type_scope=None):
         """
         Retrieve TicketEvents
 
@@ -1600,7 +1605,7 @@ def events(self, start_time, include=None, per_page=None):
         """
         return self._query_zendesk(self.endpoint.events, 'ticket_event',
                                    start_time=start_time, include=include,
-                                   per_page=per_page)
+                                   per_page=per_page, support_type_scope=support_type_scope)
 
     @extract_id(Ticket)
     def audits(self, ticket=None, include=None, **kwargs):
diff --git a/zenpy/lib/endpoint.py b/zenpy/lib/endpoint.py
index 8919b50..506977e 100644
--- a/zenpy/lib/endpoint.py
+++ b/zenpy/lib/endpoint.py
@@ -124,6 +124,7 @@ def __call__(self, **kwargs):
                     'limit',
                     'cursor',
                     'filter_by',
+                    'support_type_scope'
             ):
                 parameters[key] = value
             elif key == 'since':
@@ -209,7 +210,7 @@ class IncrementalEndpoint(BaseEndpoint):
     :param include: list of items to sideload
     """
 
-    def __call__(self, start_time=None, include=None, per_page=None):
+    def __call__(self, start_time=None, include=None, per_page=None, support_type_scope=None):
         if start_time is None:
             raise ZenpyException(
                 "Incremental Endpoint requires a start_time parameter!")
@@ -227,6 +228,8 @@ def __call__(self, start_time=None, include=None, per_page=None):
                 params.update(dict(include=",".join(include)))
             else:
                 params.update(dict(include=include))
+        if support_type_scope:
+            params["support_type_scope"] = support_type_scope
         return Url(self.endpoint, params=params)