Authorization tokens can be used in place of user / password combinations in API authentication. To set a token, visit the token page of your account and click the Generate button. A token will be generated and displayed on-screen.
If you need to revoke a token, simply click the Revoke button. Keep in mind that once a token is revoked you will need to update any applications using that token with a new token.
For information on using the token in your API call, click here.