The Mux Data Overview, Metrics, Errors, and Views pages - and the Mux Data Metrics APIs - now support one-minute granularity for chart aggregations and custom time range selection. The chart data will be aggregated at one-minute intervals for any time range that is less than 90 minutes. The custom range time picker has been updated to support one-minute time intervals along with other improvements.
One-minute granularity is available to all Mux Data users.