Available from version 1.25.0 (Gerrit change 160798)
Allows to modify an API module's help output
Define function:
public static function onAPIHelpModifyOutput( ApiBase $module, array &$help, array $options, array &$toc ) { ... }
Attach hook: In extension.json:
	"Hooks": {
		"APIHelpModifyOutput": "MediaWiki\\Extension\\MyExtension\\Hooks::onAPIHelpModifyOutput"
Called from: File(s): api/ApiHelp.php
Function(s): getHelpInternal
Interface: APIHelpModifyOutputHook.php

For more information about attaching hooks, see Manual:Hooks .
For examples of extensions using this hook, see Category:APIHelpModifyOutput extensions.


  • $module - ApiBase object
  • &$help - Array of HTML strings to be joined for the output
  • $options - Array of options passed to ApiBase::getHelp()
  • &$toc - If a TOC is being generated, this array has keys as anchors in the page and values as for Linker::generateTOC().