It would be good to see this feature In UI for Blazor. It seems like in Kendo UI you can accomplish it like so: yAxis.reverse - API Reference - Kendo UI Chart - Kendo UI for jQuery (telerik.com)

<div id="chart"></div>
<script>
$("#chart").kendoChart({
  series: [
    { type: "scatter", data: [[1, 2]]}
  ],
  yAxis: {
    reverse: true
  }
});
</script>