Cost Explorer

Get Cost by Month

aws ce get-cost-and-usage --granularity MONTHLY --metrics BlendedCost \
   --time-period Start=2023-10-01,End=2023-12-31 | \
   jq '.ResultsByTime[]|.TimePeriod.Start+" "+.Total.BlendedCost.Amount'

2023-10-01 1000.000000
2023-11-01 2000.000000
2023-12-01 3000.000000