Wikidata is a free knowledge base about the world that can be read and edited by humans and machines alike. It provides data in all the languages of the Wikimedia projects, and allows for the central access to data in a similar vein as Wikimedia Commons does for multimedia files. This project is used by the Wikidata development team at WMDE for various purposes.
List of servers
|wikidata-constraints||https://wikidata-constraints.wmflabs.org||test system for WikibaseQualityConstraints||manually administered|
|wikidata-mobile||none||formerly Wikidata Mobile Termbox prototype and also Wikibase Docker UI prototype, now none?|
|federated-wikis||https://items-repo.wmflabs.org||unknown, presumably to test federation in combination with federated-wikis2|
|federated-wikis2||https://props-repo.wmflabs.org||unknown, presumably to test federation in combination with federated-wikis|
|wikibase-stretch||https://wikibase.wmflabs.org||unknown, presumably to test
||Apache serves wikiba.se from |
|wikidata-misc||https://wdq-ui.wmflabs.org, https://docker-ui.wmflabs.org, https://ssr-termbox.wmflabs.org||unknown, miscellaneous|
|wikidata-shex||https://wikidata-shex.wmflabs.org||test system for Wikidata Shape Expressions integration||Puppet + Vagrant|
Use the Server Admin Log! You can fill in information via IRC #wikimedia-cloud connect by posting a line in the following format: !log <project> <message>, e.g. !log wikidata-dev Message. You can also include the instance, like so: !log wikidata-dev wikidata-constraints Something went wrong.
Lots of outdated documentation from the 2012-2013 era is preserved here: Nova Resource:Wikidata-dev/Documentation/old-2012-2013