TUSC stands for Toolserver User Screening Control.

By the house rules, tools on the toolserver must not ask for passwords for users on Wikimedia projects.

However, sometimes it is necessary for a tool to verify the identity of a user to perform some operation on such a project.

At tools.wmflabs.org/tusc/index.html you can create a new account, with a new password, and then verify it against a Wikimedia project by performing a specific edit. You can then identify yourself in Toolserver or Toolforge tools by giving this new account.

The original TUSC URL (currently redirecting to the Toolforge version) was http://toolserver.org/~magnus/tusc.php?language=en&project=wikipedia .