diff --git a/app/main.py b/app/main.py
index fbd462c..0420018 100644
--- a/app/main.py
+++ b/app/main.py
@@ -4,7 +4,16 @@
 app = FastAPI(
     title="Deening API",
     description="Best Recipe Service powered by AI.",
-    version="0.1.0"
+    version="0.1.0",
+    contact={
+        "name": "Seungpyo Suh",
+        "url": "https://sspzoa.io/",
+        "email": "me@sspzoa.io",
+    },
+    license_info={
+        "name": "GNU Affero General Public License v3.0",
+        "url": "https://www.gnu.org/licenses/agpl-3.0.en.html",
+    },
 )
 
 app.include_router(ping.router)
diff --git a/app/routes/cooking_step.py b/app/routes/cooking_step.py
index e505aca..7fb577f 100644
--- a/app/routes/cooking_step.py
+++ b/app/routes/cooking_step.py
@@ -13,6 +13,9 @@ class ErrorResponse(BaseModel):
 
 @router.post("/cooking_step", response_model=CookingStepResponse, responses={400: {"model": ErrorResponse}, 404: {"model": ErrorResponse}})
 async def get_cooking_step_info(request: CookingStepRequest):
+    """
+    레시피의 특정 조리 단계에 대한 상세 정보를 생성합니다.
+    """
     if request.recipe_id not in recipe_store:
         raise HTTPException(status_code=404, detail="레시피를 찾을 수 없습니다.")
 
diff --git a/app/routes/ingredient.py b/app/routes/ingredient.py
index 9f3b21d..0dbc4a1 100644
--- a/app/routes/ingredient.py
+++ b/app/routes/ingredient.py
@@ -11,6 +11,9 @@ class ErrorResponse(BaseModel):
 
 @router.post("/ingredient", response_model=IngredientResponse, responses={400: {"model": ErrorResponse}})
 async def get_ingredient_info(request: IngredientRequest):
+    """
+    식재료 정보와 이미지를 생성합니다.
+    """
     try:
         # 식재료 정보 생성 프롬프트
         ingredient_prompt = f"""제공된 식재료에 대한 정보를 JSON 형식으로 생성해주세요. 다음 구조를 따라주세요:
diff --git a/app/routes/ping.py b/app/routes/ping.py
index d8b588c..9f69556 100644
--- a/app/routes/ping.py
+++ b/app/routes/ping.py
@@ -5,4 +5,7 @@
 
 @router.get("/ping", response_model=PingResponse)
 async def ping():
+    """
+    Health check endpoint
+    """
     return {"message": "pong"}
\ No newline at end of file
diff --git a/app/routes/recipe.py b/app/routes/recipe.py
index 23762b7..28e0714 100644
--- a/app/routes/recipe.py
+++ b/app/routes/recipe.py
@@ -14,6 +14,9 @@ class ErrorResponse(BaseModel):
 
 @router.post("/recipe", response_model=RecipeResponse, responses={400: {"model": ErrorResponse}})
 async def get_recipe(request: RecipeRequest):
+    """
+    주어진 음식 이름에 대한 레시피를 생성합니다.
+    """
     try:
         # 레시피 생성 프롬프트
         recipe_prompt = f"""제공된 음식 이름에 대한 레시피를 JSON 형식으로 생성해주세요. 다음 구조를 따라주세요:
@@ -106,6 +109,9 @@ async def get_recipe(request: RecipeRequest):
 
 @router.get("/recipe/{recipe_id}", response_model=RecipeResponse, responses={404: {"model": ErrorResponse}})
 async def get_recipe_by_id(recipe_id: str):
+    """
+    주어진 ID에 대한 레시피를 반환합니다.
+    """
     if recipe_id not in recipe_store:
         raise HTTPException(status_code=404, detail="레시피를 찾을 수 없습니다.")