diff --git a/src/strands_tools/use_aws.py b/src/strands_tools/use_aws.py
index 7b87bb26..f0cbf2cb 100644
--- a/src/strands_tools/use_aws.py
+++ b/src/strands_tools/use_aws.py
@@ -213,7 +213,6 @@ def get_available_operations(service_name: str) -> List[str]:
                 "region",
                 "service_name",
                 "operation_name",
-                "parameters",
                 "label",
             ],
         }
@@ -280,7 +279,7 @@ def use_aws(tool: ToolUse, **kwargs: Any) -> ToolResult:
 
     service_name = tool_input["service_name"]
     operation_name = tool_input["operation_name"]
-    parameters = tool_input["parameters"]
+    parameters = tool_input.get("parameters", {})
     region = tool_input.get("region", aws_region)
     label = tool_input.get("label", "AWS Operation Details")
 
diff --git a/tests/test_use_aws.py b/tests/test_use_aws.py
index 8e300301..4fd02a93 100644
--- a/tests/test_use_aws.py
+++ b/tests/test_use_aws.py
@@ -100,6 +100,24 @@ def test_use_aws_direct_success(mock_boto3_client, mock_available_services, mock
     assert "test-request-id" in result["content"][0]["text"]
 
 
+def test_use_aws_without_parameters(mock_boto3_client, mock_available_services, mock_available_operations):
+    """Test use_aws when parameters is not provided in the input."""
+    tool_use = {
+        "toolUseId": "test-tool-use-id",
+        "input": {
+            "service_name": "s3",
+            "operation_name": "list_buckets",
+            "region": "us-west-2",
+            "label": "List S3 Buckets",
+        },
+    }
+
+    result = use_aws.use_aws(tool=tool_use)
+
+    assert result["toolUseId"] == "test-tool-use-id"
+    assert result["status"] == "success"
+
+
 def test_use_aws_invalid_service(mock_available_services, mock_available_operations):
     """Test use_aws with an invalid service name."""
     tool_use = {