There is currently not a Safari Extension that is available. A simple workaround would be to enable submitting the URL to scrape via a query string (e.g. https://app.getrecall.ai/items/add?url=<YOUR URL HERE>). This would enable users to create a javascript "bookmarklet" that would submit the URL of the page they are on to Recall. Here's an example of how this approach works using Roam Research as an example: https://nesslabs.com/roam-research-bookmarklet