Before you can use Key Management Service (KMS), you must activate it. This topic describes how to activate KMS.


An Alibaba Cloud account is created, and real-name verification is completed for the account. For more information, see Account registration and Real-name verification.

Activate KMS in the KMS console

  1. Log on to the KMS activation page.
  2. Read and select Key Management Service Terms of Service.
  3. Click Activate Now.
    After KMS is activated, you are charged based on your actual resource usage. For more information, see Billing.

Activate KMS by using the API

You can call the OpenKmsService operation to activate KMS.

Note You can call the DescribeAccountKmsStatus operation to query the KMS status of the Alibaba cloud account.