diff --git a/config/settings.py b/config/settings.py
index 0003421..169ded9 100644
--- a/config/settings.py
+++ b/config/settings.py
@@ -153,6 +153,7 @@
     "DEFAULT_SCHEMA_CLASS": "drf_spectacular.openapi.AutoSchema",
     "EXCEPTION_HANDLER": "config.exceptions.custom_exception_handler",
     "DEFAULT_AUTHENTICATION_CLASSES": [
+        "rest_framework.authentication.TokenAuthentication",
         "rest_framework_simplejwt.authentication.JWTAuthentication",
     ],
     "DEFAULT_PERMISSION_CLASSES": [
diff --git a/metric/views.py b/metric/views.py
index 8b7f7d5..7816fce 100644
--- a/metric/views.py
+++ b/metric/views.py
@@ -13,11 +13,24 @@ class MetricViewSet(viewsets.ViewSet):
     service = MetricService()
 
     @extend_schema(
+        parameters=[
+            OpenApiParameter(
+                name="only_numeric",
+                description="If true, returns only metrics with value_type 'integer' or 'float'",
+                required=False,
+                type=bool,
+            )
+        ],
         responses=MetricSerializer(many=True),
         tags=["Metrics"],
     )
     def list(self, request):
+        only_numeric = request.query_params.get("only_numeric", "").lower() == "true"
+
         metrics = self.service.list_metrics()
+
+        if only_numeric:
+            metrics = [m for m in metrics if m.value_type in ["integer", "float"]]
         serializer = MetricSerializer(metrics, many=True)
         return Response(serializer.data)