Creative library
Lists the ad account's creative library (Meta's /act_X/adcreatives), rows returned verbatim. The default projection covers id, name, status, object type, thumbnail, object_story_spec / asset_feed_spec and url_tags; fields is a raw-passthrough override. Any creative id here is reusable on the create endpoints via existingCreativeId.
Query parameters
Zernio SocialAccount id (posting or ads variant) used to resolve the Meta token.
Meta ad account id (act_<n>).
Comma-separated Graph field override. Supports nested {} projections and Graph field modifiers, so a nested edge can be paged explicitly: without a .limit() modifier the expansion runs at the Meta default page size and the tail is dropped silently.
Rows per page
Cursor from paging.after of the previous page.
Response
Creatives (raw Meta shape)