API:Changing wiki content

Changing wiki content through the API is enabled by default as of MediaWiki 1.14; it can be api>Special:MyLanguage/API:Restricting API usage|disabled by setting  in LocalSettings.php.

In MediaWiki 1.13 and earlier, you have to explicitly enable the write API with

Please see the appropriate subsection for detailed information for each module. Write modules generally require a POST method, where read modules usually use GET methods. Exceptions are noted on individual pages.

Possible errors
Some wikis restrict the use of these modules to certain groups of users, or disallow it altogether.

All aforementioned modules can return the following errors: