In Jira Data Center, we have REST API that provide users a way to create their own Personal Access Tokens (PAT). However, this is limited and only allows this to be done by the user itself and not from another account, such as a Jira Administrator:

Creating PATs using REST API

To create the PAT using REST API, you can send a POST HTTP request as exemplified below, and in response, you'll receive the PAT. Please note that you cannot create PATs on behalf of someone else.
 Be sure to replace the {{baseUrlOfYourInstance}} with the actual URL for your Jira/Confluence instance.

It would be great if we could extend our REST API to allow Jira Administrators users to create and delete a PAT for users. This would be useful for the management of service accounts that rely on a PAT by Jira Administrators.