Retrieve a specific Metafield through API

How to retrieve a specific metafield only through API as when data are extracted, we are getting all metafields. Is there a way to extract a specific metafield only through API and ignore other metafield. For example, we want only extract date from metafield Credit Customers (see screenshot below) but we are getting other metafields such as loyaltylion.points_total (see 2nd screenshot):