## Details on Usage Costs from AWS Cost APIs

On the Archera Cost Explorer, we break out cost information as reported by the AWS APIs. Confusingly, these APIs collect a number of disparate, ancillary usage charges from EC2 into a category called "EC2-Other", which for some workloads can be large.

## What's Included

Under the "EC2-Other" umbrella the following costs are combined:

- **EBS:VolumeUsage.gp2** ($)
- **EBS:SnapshotUsage** ($)
- **CPUCredits:t2/t3** ($)
- **NatGateway-Hours** ($)
- **DataTransfer-Regional-Bytes** ($)
- **ElasticIP:IdleAddress** ($)
- **NatGateway-Bytes** ($)
- **REGION1-REGION2-AWS-Out-Bytes** ($)
- **REGION1-REGION2-AWS-In-Bytes** ($)
- **Others**

Essentially, these are the usage costs commonly associated with EC2 usage such as snapshots, CPU Credits, Data Transfer fees, etc.

## Getting Visibility

To get further details on these individual costs, you can use the Segment Explorer **"Group By"** functionality. Select **"Group By"** and change to **"Usage Type"**.

Next, select the services you want to collect information on. For example, you can look at all the Instance Type costs for a more granular breakdown.