The API token section of your Profile page displays your API token and also allows you to change or revoke it, if necessary.
Your API token allows you to authenticate against the API, and/or third-party tools that access your Tracker projects via the API.
If you don’t yet have a token, or would like to generate a new one, click Create New Token. (Creating a new token will replace and deactivate your existing token.) You can also deactivate your existing token by clicking Remove Token. If a member is removed from a project, their API token will no longer authenticate against that project.