Can Views Bulk Operation be used to re-index specific nodes
I didn't deal with that for a few time but since I found the answer my self I thought about posting that here in the hope that someone finds it useful. I dug into Views Bulk Operations and into the Search API devel, copied and modified some code.

For this to work we need to create a custom module and put in the module the following:

&lt;?php
/**
 * Implements hook_action_info
 */
function MY_MODULE_api_action_info() {
  /**
   * Defines an array of actions to be performed on nodes
   */
  return array(
      'MY_MODULE_api_reindex' =&gt; array(
          'type' =&gt; 'node',
          'label' =&gt; t('Reindex node'),
          'behavior' =&gt; array('changes_property'),
          'configurable' =&gt; FALSE,
          'vbo_configurable' =&gt; FALSE,
          'triggers' =&gt; array('any'),
      ),
  );
}

function MY_MODULE_api_reindex(&amp;$node, $context) {
  /**
   * function to implement the action defined above (see the key of the array
   * returned in vbo_search_api_action_info()
   */
  //copied the code from the search_api_devel module
  //load all indexes
  $indexes = search_api_index_load_multiple(FALSE);
  foreach ($indexes as $index) {
      if ($index-&gt;enabled) {
        search_api_index_specific_items($index, array($node-&gt;nid));
      }
    }  
}


There might be a better way to go around this problem. For example the code now loads the index for each visited node, whereas Search API supports indexing an array of nids. So potentially we could gather all nids and then submit to Search API