{"service":"E-Invoice QR Extractor API","version":"2.3.0","features":{"single_file":true,"batch_upload":true,"concurrency_limit":5,"max_file_size":"50.0MB","timeout":"300s"},"endpoints":{"single":"POST /extract-qr","batch":"POST /batch-extract","tracking":"GET /tracking/{request_id}","stats":"GET /stats","health":"GET /health"}}