diff --git a/api/birdxplorer_api/routers/data.py b/api/birdxplorer_api/routers/data.py
index ad22488..75ed648 100644
--- a/api/birdxplorer_api/routers/data.py
+++ b/api/birdxplorer_api/routers/data.py
@@ -96,22 +96,22 @@ def get_posts(
         request: Request,
         post_id: Union[List[PostId], None] = Query(default=None),
         note_id: Union[List[NoteId], None] = Query(default=None),
-        created_at_start: Union[None, TwitterTimestamp, str] = Query(default=None),
-        created_at_end: Union[None, TwitterTimestamp, str] = Query(default=None),
+        created_at_from: Union[None, TwitterTimestamp, str] = Query(default=None),
+        created_at_to: Union[None, TwitterTimestamp, str] = Query(default=None),
         offset: int = Query(default=0, ge=0),
         limit: int = Query(default=100, gt=0, le=1000),
         search_text: Union[None, str] = Query(default=None),
     ) -> PostListResponse:
-        if created_at_start is not None and isinstance(created_at_start, str):
-            created_at_start = ensure_twitter_timestamp(created_at_start)
-        if created_at_end is not None and isinstance(created_at_end, str):
-            created_at_end = ensure_twitter_timestamp(created_at_end)
+        if created_at_from is not None and isinstance(created_at_from, str):
+            created_at_from = ensure_twitter_timestamp(created_at_from)
+        if created_at_to is not None and isinstance(created_at_to, str):
+            created_at_to = ensure_twitter_timestamp(created_at_to)
         posts = list(
             storage.get_posts(
                 post_ids=post_id,
                 note_ids=note_id,
-                start=created_at_start,
-                end=created_at_end,
+                start=created_at_from,
+                end=created_at_to,
                 search_text=search_text,
                 offset=offset,
                 limit=limit,
@@ -120,8 +120,8 @@ def get_posts(
         total_count = storage.get_number_of_posts(
             post_ids=post_id,
             note_ids=note_id,
-            start=created_at_start,
-            end=created_at_end,
+            start=created_at_from,
+            end=created_at_to,
             search_text=search_text,
         )
 
diff --git a/api/tests/routers/test_data.py b/api/tests/routers/test_data.py
index baec52b..67160f9 100644
--- a/api/tests/routers/test_data.py
+++ b/api/tests/routers/test_data.py
@@ -61,14 +61,14 @@ def test_posts_get_has_note_id_filter(client: TestClient, post_samples: List[Pos
 
 
 def test_posts_get_has_created_at_filter_start_and_end(client: TestClient, post_samples: List[Post]) -> None:
-    response = client.get("/api/v1/data/posts/?createdAtStart=2006-7-25 00:00:00&createdAtEnd=2006-7-30 23:59:59")
+    response = client.get("/api/v1/data/posts/?createdAtFrom=2006-7-25 00:00:00&createdAtTo=2006-7-30 23:59:59")
     assert response.status_code == 200
     res_json = response.json()
     assert res_json == {"data": [json.loads(post_samples[1].model_dump_json())], "meta": {"next": None, "prev": None}}
 
 
 def test_posts_get_has_created_at_filter_start(client: TestClient, post_samples: List[Post]) -> None:
-    response = client.get("/api/v1/data/posts/?createdAtStart=2006-7-25 00:00:00")
+    response = client.get("/api/v1/data/posts/?createdAtFrom=2006-7-25 00:00:00")
     assert response.status_code == 200
     res_json = response.json()
     assert res_json == {
@@ -78,7 +78,7 @@ def test_posts_get_has_created_at_filter_start(client: TestClient, post_samples:
 
 
 def test_posts_get_has_created_at_filter_end(client: TestClient, post_samples: List[Post]) -> None:
-    response = client.get("/api/v1/data/posts/?createdAtEnd=2006-7-30 00:00:00")
+    response = client.get("/api/v1/data/posts/?createdAtTo=2006-7-30 00:00:00")
     assert response.status_code == 200
     res_json = response.json()
     assert res_json == {
@@ -88,14 +88,14 @@ def test_posts_get_has_created_at_filter_end(client: TestClient, post_samples: L
 
 
 def test_posts_get_created_at_range_filter_accepts_integer(client: TestClient, post_samples: List[Post]) -> None:
-    response = client.get("/api/v1/data/posts/?createdAtStart=1153921700000&createdAtEnd=1154921800000")
+    response = client.get("/api/v1/data/posts/?createdAtFrom=1153921700000&createdAtTo=1154921800000")
     assert response.status_code == 200
     res_json = response.json()
     assert res_json == {"data": [json.loads(post_samples[1].model_dump_json())], "meta": {"next": None, "prev": None}}
 
 
 def test_posts_get_created_at_start_filter_accepts_integer(client: TestClient, post_samples: List[Post]) -> None:
-    response = client.get("/api/v1/data/posts/?createdAtStart=1153921700000")
+    response = client.get("/api/v1/data/posts/?createdAtFrom=1153921700000")
     assert response.status_code == 200
     res_json = response.json()
     assert res_json == {
@@ -105,7 +105,7 @@ def test_posts_get_created_at_start_filter_accepts_integer(client: TestClient, p
 
 
 def test_posts_get_created_at_end_filter_accepts_integer(client: TestClient, post_samples: List[Post]) -> None:
-    response = client.get("/api/v1/data/posts/?createdAtEnd=1154921800000")
+    response = client.get("/api/v1/data/posts/?createdAtTo=1154921800000")
     assert response.status_code == 200
     res_json = response.json()
     assert res_json == {
@@ -115,7 +115,7 @@ def test_posts_get_created_at_end_filter_accepts_integer(client: TestClient, pos
 
 
 def test_posts_get_timestamp_out_of_range(client: TestClient, post_samples: List[Post]) -> None:
-    response = client.get("/api/v1/data/posts/?createdAtStart=1153921700&createdAtEnd=1153921700")
+    response = client.get("/api/v1/data/posts/?createdAtFrom=1153921700&createdAtTo=1153921700")
     assert response.status_code == 422