Using 'hour_of_day' dimension

Hi, do you know what 'API endpoint URL' I could use to pull hourly statistics for a particular data range? I've tried this

https://backstage.taboola.com/backstage/api/1.0/stats/campaigns/performance?dimensions=hour_of_day&start_date=2023-0113&end_date=2023-01-13

but it returns the following error:

{
"http_status": 400,
"message": "The requested operation failed since the API server cannot parse the request",
"message_code": "api.action.bad_request.null"
}

Thanks!