How to skip the first few entries in a "load more" scenario with Element API?
If you always want to skip the first 6 entries, you can modify the Element API endpoint to add 6 to the offset number in the query criteria:
$criteria = [
    'section' =&gt; $settings['section'], 
    'limit' =&gt;  $settings['limit'],
    'offset' =&gt;  ($settings['limit'] * Craft::$app-&gt;request-&gt;getParam('offset')) + 6,
    'order' =&gt; $settings['orderBy'],
];

That should mean you're always receiving results that are offset by the required amount for your request, plus the first 6 entries that you always want to skip.