{"service":"Amazon Captcha Solver - Production Optimized","version":"3.0","endpoints":{"GET /":"API information","GET /health":"Detailed health & metrics","POST /solve_captcha":"Legacy endpoint - base64 input","POST /solve_captcha_fast":"Optimized endpoint - binary upload (FASTEST)"},"configuration":{"max_queue_size":20,"inference_timeout_seconds":30,"max_concurrent_inference":2},"optimizations":["✅ Request Queue (FIFO) with max size protection","✅ Timeout protection (auto-cancel stuck requests)","✅ Circuit breaker (auto-recovery from failures)","✅ Semaphore-based concurrency control","✅ Model warmup (eliminates cold start)","✅ Vectorized preprocessing & postprocessing","✅ ONNX Runtime optimization for 2 vCPU"]}