Index: includes/api/ApiMain.php
===================================================================
--- includes/api/ApiMain.php	(revision 38540)
+++ includes/api/ApiMain.php	(working copy)
@@ -99,7 +99,20 @@
 		'dbg' => 'ApiFormatDbg',
 		'dbgfm' => 'ApiFormatDbg'
 	);
+	
+	/**
+	 * List of user roles that are specifically relevant to the API.
+	 * array( 'right' => array ( 'msg'    => 'Some message with a $1',
+	 *                           'params' => array ( $someVarToSubst ) ),
+	 *                          );
+	 */
+	private static $Rights = array( 'writeapi'		=> array(	'msg' => 'Use of the write API' , 
+																'params' => array() ),
+									'apihighlimits'	=> array(	'msg' => 'Use higher limits in API queries (Slow queries: $1 results; Fast queries: $2 results)',
+																'params' => array ( ApiMain :: LIMIT_SML2, ApiMain :: LIMIT_BIG2 ) ),
+									);
 
+
 	private $mPrinter, $mModules, $mModuleNames, $mFormats, $mFormatNames;
 	private $mResult, $mAction, $mShowVersions, $mEnableWrite, $mRequest, $mInternalMode, $mSquidMaxage;
 
@@ -525,6 +538,14 @@
 			$msg .= "\n";
 		}
 
+		$msg .= "\n$astriks Permissions $astriks\n\n";
+		foreach ( self :: $Rights as $right => $rightMsg ) {
+			$groups = User::getGroupsWithPermission( $right );
+			$msg .= "* " . $right . " *\n  " . wfMsgReplaceArgs( $rightMsg[ 'msg' ], $rightMsg[ 'params' ] ) . 
+						"\nGranted to:\n  " . str_replace( "*", "all", implode( ", ", $groups ) ) . "\n";
+
+		}
+
 		$msg .= "\n$astriks Formats  $astriks\n\n";
 		foreach( $this->mFormats as $formatName => $unused ) {
 			$module = $this->createPrinterByName($formatName);