n8n HTTP Request node: Method = GET. URL = https://www.searchapi.io/api/v1/search. Query params: engine=meta_ad_library, search_terms={{company_name}}, active_status=active, ad_reached_countries=US. Header: Authorization = Bearer {api_key} (store as n8n credential). Response parsing Code node: const adsCount = $json.search_information?.ads_count || 0; const qualified = adsCount > 0; Return both to IF node. Full workflow at omnionlinestrategies.com/meta-ad-library-lead-qualifier.