The billing of KMS is based on two factors: CMK storage and API calls, as detailed below:
|CMK storage (USD/key/day)||Tencent Cloud managed CMKs||Free|
|Customer managed CMKs||0.06 USD/key/day|
|API calls (USD/10,000 calls)||First 20,000 calls||Free|
|API calls||0.18 USD/10,000 calls|
KMS is a monthly pay-as-you-go service. The fees for one month are calculated, billed, and charged on the 3rd to 5th days of the following month.
This refers to the fees for storing the CMKs created in KMS. The CMK storage fees are billed daily, that is, the cumulative CMKs under a specified account will be billed on a daily basis.
- Limit on the total number of CMKs: up to 200 CMKs can be created under each account in each region, excluding the ones in “Pending Deletion” status and Tencent Cloud managed CMKs. If you need to create more CMKs, please submit a ticket or contact your Tencent Cloud sales rep.
- CMK billing status: only customer managed CMKs in "Pending Deletion" status are free of charge.
KMS provides a free quota of 20,000 API calls. After the free quota is used up, API calls will be billed monthly, that is, the cumulative API calls under a specified account in one month will be billed on a monthly basis.
API calls: 0.18 USD/10,000 calls, billed monthly.
If there are less than 1,000 API calls, fees will be billed for 1,000 calls.