{"message":"Welcome to Free Image Search API!","docs":"/docs","version":"2.1.1","engines":["Openverse (Wikimedia/Flickr/Stocksnap)","DuckDuckGo (bonus)"],"endpoints":{"/search":"Search images for a single keyword","/search/bulk":"Search images for multiple keywords in parallel (POST)","/health":"Health check"},"features":["Completely FREE - No API keys required","Dual-engine search: Openverse + DuckDuckGo","Bulk search: send up to 50 keywords in one request","Concurrency-controlled parallel processing with semaphore","Per-keyword failure isolation — one bad keyword won't fail the rest","Intelligent relevance ranking & deduplication"]}