https://blog.wikimedia.org/2012/01/16/wikipedias-community-calls-for-anti-so...
Editing pages on English Wikipedia via the web service API will be disabled for 24 hours beginning at 05:00 UTC on Wednesday, January 18, as part of the anti-SOPA/PIPA blackout.
Please forward and publicize so people who use and run bots are alerted.