diff --git a/example.py b/example.py
index 51c7b79..ae5fb13 100644
--- a/example.py
+++ b/example.py
@@ -7,9 +7,9 @@
 # Configuration
 ENDPOINT_ID = os.getenv("ENDPOINT_ID", "your-endpoint-id")
 API_KEY = os.getenv("RUNPOD_API_KEY")
-ENDPOINT_URL = f"https://{ENDPOINT_ID}.api.runpod.ai"
+ENDPOINT_URL = os.getenv("ENDPOINT_URL", "http://localhost:8009") if os.getenv("ENDPOINT_URL") else f"https://{ENDPOINT_ID}.api.runpod.ai"
 
-if not API_KEY:
+if not API_KEY and not os.getenv("ENDPOINT_URL"):
     print("Error: Please set RUNPOD_API_KEY environment variable")
     sys.exit(1)
 
@@ -218,7 +218,7 @@ def main():
     print("🧪 vLLM Streaming Test Suite")
     print("=" * 50)
     print(f"🎯 Endpoint: {ENDPOINT_URL}")
-    print(f"🔑 API Key: {API_KEY[:10]}...")
+    print(f"🔑 API Key: {API_KEY[:10] if API_KEY else None}...")
     
     while True:
         print("\n" + "="*50)
diff --git a/src/handler.py b/src/handler.py
index 9f55f10..8b4b383 100644
--- a/src/handler.py
+++ b/src/handler.py
@@ -11,7 +11,7 @@
 from vllm.sampling_params import SamplingParams
 from vllm.utils import random_uuid
 from utils import format_chat_prompt, create_error_response
-from .models import GenerationRequest, GenerationResponse, ChatCompletionRequest
+from models import GenerationRequest, GenerationResponse, ChatCompletionRequest
 
 # Configure logging
 logging.basicConfig(
@@ -53,24 +53,36 @@ async def create_engine():
     global engine, engine_ready
     
     try:
-        # Get model name from environment variable
-        model_name = os.getenv("MODEL_NAME", "microsoft/DialoGPT-medium")
-        
+        # Get model path or model name registry from environment variables
+        model_name = os.getenv("MODEL_NAME",None)
+        served_model_name = os.getenv("SERVED_MODEL_NAME")
+
+        logger.info(f"Model path: {model_name}, Served model name: {served_model_name}")
+
         # Configure engine arguments
         engine_args = AsyncEngineArgs(
             model=model_name,
+            served_model_name=served_model_name,
+            download_dir=os.getenv("DOWNLOAD_DIR"),
+            # mm_processor_cache_gb not available in 0.9.1, should upgrade to use this paramater
+            # mm_processor_cache_gb= float(os.getenv("MM_PROCESSOR_CACHE_GB")) if os.getenv("MM_PROCESSOR_CACHE_GB") else None,
+            max_num_seqs=int(os.getenv("MAX_NUM_SEQS")) if os.getenv("MAX_NUM_SEQS") else None,
+            hf_token=os.getenv("HF_TOKEN"),
             tensor_parallel_size=int(os.getenv("TENSOR_PARALLEL_SIZE", "1")),
             dtype=os.getenv("DTYPE", "auto"),
             trust_remote_code=os.getenv("TRUST_REMOTE_CODE", "true").lower() == "true",
             max_model_len=int(os.getenv("MAX_MODEL_LEN")) if os.getenv("MAX_MODEL_LEN") else None,
             gpu_memory_utilization=float(os.getenv("GPU_MEMORY_UTILIZATION", "0.9")),
             enforce_eager=os.getenv("ENFORCE_EAGER", "false").lower() == "true",
+            enable_prefix_caching=bool(os.getenv("ENABLE_PREFIX_CACHING")) if os.getenv("ENABLE_PREFIX_CACHING") else None,
+            max_num_batched_tokens=int(os.getenv("MAX_NUM_BATCHED_TOKENS")) if os.getenv("MAX_NUM_BATCHED_TOKENS") else None,
+            
         )
         
         # Create the engine
         engine = AsyncLLMEngine.from_engine_args(engine_args)
         engine_ready = True
-        logger.info(f"vLLM engine initialized successfully with model: {model_name}")
+        logger.info(f"vLLM engine initialized successfully with model: {model_name} (served as: {served_model_name})")
         
     except Exception as e:
         logger.error(f"Failed to initialize vLLM engine: {str(e)}")
@@ -236,7 +248,7 @@ async def chat_completions(request: ChatCompletionRequest):
         return {
             "id": request_id,
             "object": "chat.completion",
-            "model": os.getenv("MODEL_NAME", "unknown"),
+            "model": os.getenv("SERVED_MODEL_NAME", "unknown"),
             "choices": [{
                 "index": 0,
                 "message": {
diff --git a/src/utils.py b/src/utils.py
index 59ebb0d..ac35b81 100644
--- a/src/utils.py
+++ b/src/utils.py
@@ -1,6 +1,6 @@
 from typing import List
 from transformers import AutoTokenizer
-from .models import ChatMessage, ErrorResponse
+from models import ChatMessage, ErrorResponse
 
 
 def get_tokenizer(model_name: str):