Extension:WikibaseStatementUpdater

Tool for both updating and adding Wikibase statements using QuickStatements V1 format. As of version 1.0.0, only properties are supported. To update an existing statement, there must only be one statement for that property. If there are multiple, no change will be done. If there is none, a new statement will be added.

Configuration
You need to create a consumer for this tool using Special:OAuthConsumerRegistration/propose with the following details:
 * Name (you can choose)
 * Description (up to you)
 * OAuth protocol version: 1.0a
 * Callback URL: Full path to your Special:WikibaseStatementUpdater page
 * Use as a prefix: no
 * Grants are the same as for QuickStatements and OpenRefine, basically:
 * High-volume editing
 * Edit existing pages
 * Create, edit, and move pages


 * $wgWSUClientConfig
 * Set this to an array with keys  and   for the consumer key and secret respectively.

User rights
The extension itself does not require any user rights. It works through OAuth so the user must have permissions to update Wikibase items.