Total space amount allocated and Total space used at organization level

 By organizational level do you mean you want to know the amount of space allocated and used for each user in the enterprise or how much storage your enterprise is using total? 

If you want this data for each user, you could use this endpoint: https://developer.box.com/reference#get-all-users-in-an-enterprise, which will return space_amount and space_used. 

Best, 

Kourtney 

Box Product Support

 yes we want total space allocated and total space used at enterprise level.

 Unfortunately I'm not aware of a way to currently get this information via the API on the enterprise level. I know this information is exposed on the insights tab of the admin console via box.com, but this would be a great feature request to submit at pulse.box.com!