diff --git a/netx_api/ne_service.py b/netx_api/ne_service.py
index 3ba404c..d2edb34 100644
--- a/netx_api/ne_service.py
+++ b/netx_api/ne_service.py
@@ -238,10 +238,6 @@ def list_managed_ne(
     kw = str(keyword or "").strip()
     v = str(vendor or "").strip()
     cs = str(connect_status or "").strip()
-    if not (kw or v or cs):
-        raise HTTPException(status_code=400, detail="managed_ne_filter_required")
-    if kw and len(kw) < 2:
-        raise HTTPException(status_code=400, detail="managed_ne_keyword_too_short")
     if kw:
         like = f"%{kw}%"
         stmt = stmt.filter(
diff --git a/tests/test_managed_ne.py b/tests/test_managed_ne.py
index d12f51c..0342469 100644
--- a/tests/test_managed_ne.py
+++ b/tests/test_managed_ne.py
@@ -145,15 +145,11 @@ class ManagedNeApiTests(unittest.TestCase):
                 self.assertEqual(listed.json()["total"], 1, listed.text)
         self.client.delete(f"/v1/managed-ne/{ne_id}")
 
-    def test_list_requires_filter(self):
+    def test_list_allows_empty_and_short_keyword(self):
         listed = self.client.get("/v1/managed-ne")
-        self.assertEqual(listed.status_code, 400)
-        self.assertEqual(listed.json()["detail"], "managed_ne_filter_required")
-
-    def test_list_rejects_short_keyword(self):
-        listed = self.client.get("/v1/managed-ne", params={"keyword": "r"})
-        self.assertEqual(listed.status_code, 400)
-        self.assertEqual(listed.json()["detail"], "managed_ne_keyword_too_short")
+        self.assertEqual(listed.status_code, 200)
+        short_kw = self.client.get("/v1/managed-ne", params={"keyword": "r"})
+        self.assertEqual(short_kw.status_code, 200)
 
     def test_list_allows_vendor_only_filter(self):
         created = self.client.post(