diff --git a/application/api/answer/routes.py b/application/api/answer/routes.py
index 9a22db84..cb0e3431 100644
--- a/application/api/answer/routes.py
+++ b/application/api/answer/routes.py
@@ -19,6 +19,7 @@ from application.extensions import api
 from application.llm.llm_creator import LLMCreator
 from application.retriever.retriever_creator import RetrieverCreator
 from application.utils import check_required_fields
+from application.redis_cache import RedisCache
 
 logger = logging.getLogger(__name__)
 
@@ -292,6 +293,7 @@ class Stream(Resource):
     def post(self):
         data = request.get_json()
         required_fields = ["question"]
+
         missing_fields = check_required_fields(data, required_fields)
         if missing_fields:
             return missing_fields
@@ -422,7 +424,7 @@ class Answer(Resource):
     @api.doc(description="Provide an answer based on the question and retriever")
     def post(self):
         data = request.get_json()
-        required_fields = ["question"]
+        required_fields = ["question"]       
         missing_fields = check_required_fields(data, required_fields)
         if missing_fields:
             return missing_fields
diff --git a/application/core/settings.py b/application/core/settings.py
index e6173be4..0b81ac44 100644
--- a/application/core/settings.py
+++ b/application/core/settings.py
@@ -21,6 +21,11 @@ class Settings(BaseSettings):
     VECTOR_STORE: str = "faiss"  # "faiss" or "elasticsearch" or "qdrant" or "milvus"
     RETRIEVERS_ENABLED: list = ["classic_rag", "duckduck_search"] # also brave_search
 
+    # LLM Cache
+    REDIS_HOST: str = "localhost"
+    REDIS_PORT: int = 6379
+    REDIS_DB: int = 0
+
     API_URL: str = "http://localhost:7091"  # backend url for celery worker
 
     API_KEY: Optional[str] = None  # LLM api key