Passing List Item Detail Field to REST API

I have a REST API datasource set up. I’d like to put data onto a list item details page and call the REST API based on the active record on that page. So, I need to pass data into a placeholder I have set up in the REST API request. But the data I need to pass is a specific field available on the list item details page, which is pulling data from Airtable. The field I need to pass to the REST API is NOT the same as the Airtable RecordID, it is another field. Is there a way I can pass the data from one of these fields to the REST API request?