diff --git a/api/birdxplorer_api/routers/data.py b/api/birdxplorer_api/routers/data.py
index fbf32ee..6c48dac 100644
--- a/api/birdxplorer_api/routers/data.py
+++ b/api/birdxplorer_api/routers/data.py
@@ -26,6 +26,7 @@
     TopicId,
     TwitterTimestamp,
     UserEnrollment,
+    UserId,
 )
 from birdxplorer_common.storage import Storage
 
@@ -255,6 +256,7 @@ def get_posts(
         request: Request,
         post_ids: Union[List[PostId], None] = Query(default=None),
         note_ids: Union[List[NoteId], None] = Query(default=None),
+        user_ids: Union[List[UserId], None] = Query(default=None),
         created_at_from: Union[None, TwitterTimestamp, str] = Query(
             default=None, **V1DataPostsDocs.params["created_at_from"]
         ),
@@ -275,6 +277,7 @@ def get_posts(
             storage.get_posts(
                 post_ids=post_ids,
                 note_ids=note_ids,
+                user_ids=user_ids,
                 start=created_at_from,
                 end=created_at_to,
                 search_text=search_text,
@@ -288,6 +291,7 @@ def get_posts(
         total_count = storage.get_number_of_posts(
             post_ids=post_ids,
             note_ids=note_ids,
+            user_ids=user_ids,
             start=created_at_from,
             end=created_at_to,
             search_text=search_text,
diff --git a/api/tests/conftest.py b/api/tests/conftest.py
index 36a2df7..7b4530a 100644
--- a/api/tests/conftest.py
+++ b/api/tests/conftest.py
@@ -379,6 +379,7 @@ def _get_number_of_notes(
     def _get_posts(
         post_ids: Union[List[PostId], None] = None,
         note_ids: Union[List[NoteId], None] = None,
+        user_ids: Union[List[str], None] = None,
         start: Union[TwitterTimestamp, None] = None,
         end: Union[TwitterTimestamp, None] = None,
         search_text: Union[str, None] = None,
@@ -403,6 +404,8 @@ def _get_posts(
                 note.note_id in note_ids and note.post_id == post.post_id for note in note_samples
             ):
                 continue
+            if user_ids is not None and post.x_user_id not in user_ids:
+                continue
             if start is not None and post.created_at < start:
                 continue
             if end is not None and post.created_at >= end:
@@ -426,12 +429,13 @@ def _get_posts(
     def _get_number_of_posts(
         post_ids: Union[List[PostId], None] = None,
         note_ids: Union[List[NoteId], None] = None,
+        user_ids: Union[List[str], None] = None,
         start: Union[TwitterTimestamp, None] = None,
         end: Union[TwitterTimestamp, None] = None,
         search_text: Union[str, None] = None,
         search_url: Union[HttpUrl, None] = None,
     ) -> int:
-        return len(list(_get_posts(post_ids, note_ids, start, end, search_text, search_url)))
+        return len(list(_get_posts(post_ids, note_ids, user_ids, start, end, search_text, search_url)))
 
     mock.get_number_of_posts.side_effect = _get_number_of_posts
 
diff --git a/common/birdxplorer_common/storage.py b/common/birdxplorer_common/storage.py
index 8f575df..ab59332 100644
--- a/common/birdxplorer_common/storage.py
+++ b/common/birdxplorer_common/storage.py
@@ -436,6 +436,7 @@ def get_posts(
         self,
         post_ids: Union[List[PostId], None] = None,
         note_ids: Union[List[NoteId], None] = None,
+        user_ids: Union[List[UserId], None] = None,
         start: Union[TwitterTimestamp, None] = None,
         end: Union[TwitterTimestamp, None] = None,
         search_text: Union[str, None] = None,
@@ -452,6 +453,8 @@ def get_posts(
                 query = query.join(NoteRecord, NoteRecord.post_id == PostRecord.post_id).filter(
                     NoteRecord.note_id.in_(note_ids)
                 )
+            if user_ids is not None:
+                query = query.filter(PostRecord.user_id.in_(user_ids))
             if start is not None:
                 query = query.filter(PostRecord.created_at >= start)
             if end is not None:
@@ -474,6 +477,7 @@ def get_number_of_posts(
         self,
         post_ids: Union[List[PostId], None] = None,
         note_ids: Union[List[NoteId], None] = None,
+        user_ids: Union[List[UserId], None] = None,
         start: Union[TwitterTimestamp, None] = None,
         end: Union[TwitterTimestamp, None] = None,
         search_text: Union[str, None] = None,
@@ -487,6 +491,8 @@ def get_number_of_posts(
                 query = query.join(NoteRecord, NoteRecord.post_id == PostRecord.post_id).filter(
                     NoteRecord.note_id.in_(note_ids)
                 )
+            if user_ids is not None:
+                query = query.filter(PostRecord.user_id.in_(user_ids))
             if start is not None:
                 query = query.filter(PostRecord.created_at >= start)
             if end is not None: