## List **post** `/v1/usage` Fetch aggregated usage data for multiple customers and billable-metrics, broken into intervals of the specified length. ### Returns - **data:** `array of object` - **billable\_metric\_id:** `string` - **billable\_metric\_name:** `string` - **customer\_id:** `string` - **end\_timestamp:** `string` - **start\_timestamp:** `string` - **value:** `number` - **groups:** `map[number]` Values will be either a number or null. Null indicates that there were no matches for the group_by value. - **next\_page:** `string`