# Usage

Use these operations to manage the product usage of a subscription item for metered billing purposes.

Use metered billing when product quantity is unknown to the customer at the moment of creating a subscription.
Metered billing is based on reported usage records.
Every reported usage updates the quantity of an upcoming invoice item for a specified subscription and a plan.
To create a metered billing plan, see [Plans](../Plans).

## Retrieve usage records

 - [GET /usages](https://www.rebilly.com/docs/dev-docs/api/usage/getusagecollection.md): Retrieves a list of usage records.

## Create a usage record

 - [POST /usages](https://www.rebilly.com/docs/dev-docs/api/usage/postusage.md): Creates a usage report.

## Retrieve a usage record

 - [GET /usages/{id}](https://www.rebilly.com/docs/dev-docs/api/usage/getusage.md): Retrieves a usage record with a specified ID.

## Delete a usage record

 - [DELETE /usages/{id}](https://www.rebilly.com/docs/dev-docs/api/usage/deleteusage.md): Deletes a usage record with a specified ID.