# Label Management

 - [POST /api/rates/list](https://docs.shipsaving.com/zh-hans/v1/ps_openapi/label-management/getratelist.md): Retrieve available shipping rates for the given package dimensions, weight, and origin/destination addresses. Returns rates across all active carrier accounts, sorted by price.
 - [GET /api/rates/buy](https://docs.shipsaving.com/zh-hans/v1/ps_openapi/label-management/buylabel.md): Purchase a shipping label using the `rate_id` returned by **Get Rates**.
 - [POST /api/shipments/void](https://docs.shipsaving.com/zh-hans/v1/ps_openapi/label-management/voidlabel.md): Void a previously purchased shipping label by tracking number.
 - [GET /api/shipments/status](https://docs.shipsaving.com/zh-hans/v1/ps_openapi/label-management/getshipmentstatus.md): Retrieve the carrier billing state and void state of a previously purchased label, looked up by tracking number.