tencent cloud

Key Management Service (KMS)

The billing of KMS is based on two factors: CMK storage and API calls, as detailed below:

Settlement cycle

KMS supports the pay-as-you-go billing method on a monthly basis. The fees for one month are calculated and deducted on the 3rd to 5th days of the following month.

CMK storage fees

This refers to the fees for storing the CMKs created in KMS. The CMK storage fees are billed daily according to the total number of CMKs under a specified.

• Tencent Cloud managed CMKs: free of charge. A Tencent Cloud managed CMK is automatically created for you when a Tencent Cloud product (such as COS or TDSQL) calls the KMS service.
• Customer managed CMKs: 0.06 USD/key/day. A customer managed CMK is actively created by you in the console or via an API call.

Note：

• Limits: each account can have up to 200 CMKs per region (excluding Tencent Cloud managed CMKs and the ones in Scheduled deletion status). If you need to create more CMKs, please submit a ticket or contact your Tencent Cloud sales rep.
• CMK billing status: the customer managed CMKs in Scheduled deletion status are not billed.

API call fees

KMS provides a free tier of 20,000 API calls. After the free tier 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 monthly.

API calls: 0.18 USD/10,000 calls, billed monthly.

Note：

If there are less than 1000 API calls, fees will be billed for 1000 calls.