ClueBot III is an automated bot running against Wikipedia EN (see https://en.wikipedia.org/wiki/User:ClueBot_III).
It is designed to archive pages, where the {{User:ClueBot III/ArchiveThis}} page is transcluded.
The bot was originally written by Naomi Amethyst and is licensed under GPLv2.
ClueBot III needs some TLC/performance work doing to it, to bring it up to newer standards and ensure a better service to the users.
If you'd like to help improve the bot, feel free to send some pull requests.