diff --git a/backend/open_webui/routers/ollama.py b/backend/open_webui/routers/ollama.py
index ed231aabce..cd14f4526b 100644
--- a/backend/open_webui/routers/ollama.py
+++ b/backend/open_webui/routers/ollama.py
@@ -443,6 +443,9 @@ async def get_filtered_models(models, user, db=None):
 async def get_ollama_tags(
     request: Request, url_idx: Optional[int] = None, user=Depends(get_verified_user)
 ):
+    if not request.app.state.config.ENABLE_OLLAMA_API:
+        raise HTTPException(status_code=503, detail="Ollama API is disabled")
+
     models = []
 
     if url_idx is None:
@@ -707,6 +710,9 @@ async def pull_model(
     url_idx: int = 0,
     user=Depends(get_admin_user),
 ):
+    if not request.app.state.config.ENABLE_OLLAMA_API:
+        raise HTTPException(status_code=503, detail="Ollama API is disabled")
+
     form_data = form_data.model_dump(exclude_none=True)
     form_data["model"] = form_data.get("model", form_data.get("name"))
 
@@ -738,6 +744,9 @@ async def push_model(
     url_idx: Optional[int] = None,
     user=Depends(get_admin_user),
 ):
+    if not request.app.state.config.ENABLE_OLLAMA_API:
+        raise HTTPException(status_code=503, detail="Ollama API is disabled")
+
     if url_idx is None:
         await get_all_models(request, user=user)
         models = request.app.state.OLLAMA_MODELS
@@ -777,6 +786,9 @@ async def create_model(
     url_idx: int = 0,
     user=Depends(get_admin_user),
 ):
+    if not request.app.state.config.ENABLE_OLLAMA_API:
+        raise HTTPException(status_code=503, detail="Ollama API is disabled")
+
     log.debug(f"form_data: {form_data}")
     url = request.app.state.config.OLLAMA_BASE_URLS[url_idx]
 
@@ -801,6 +813,9 @@ async def copy_model(
     url_idx: Optional[int] = None,
     user=Depends(get_admin_user),
 ):
+    if not request.app.state.config.ENABLE_OLLAMA_API:
+        raise HTTPException(status_code=503, detail="Ollama API is disabled")
+
     if url_idx is None:
         await get_all_models(request, user=user)
         models = request.app.state.OLLAMA_MODELS
@@ -861,6 +876,9 @@ async def delete_model(
     url_idx: Optional[int] = None,
     user=Depends(get_admin_user),
 ):
+    if not request.app.state.config.ENABLE_OLLAMA_API:
+        raise HTTPException(status_code=503, detail="Ollama API is disabled")
+
     form_data = form_data.model_dump(exclude_none=True)
     form_data["model"] = form_data.get("model", form_data.get("name"))
 
@@ -923,6 +941,9 @@ async def delete_model(
 async def show_model_info(
     request: Request, form_data: ModelNameForm, user=Depends(get_verified_user)
 ):
+    if not request.app.state.config.ENABLE_OLLAMA_API:
+        raise HTTPException(status_code=503, detail="Ollama API is disabled")
+
     form_data = form_data.model_dump(exclude_none=True)
     form_data["model"] = form_data.get("model", form_data.get("name"))
 
@@ -995,6 +1016,9 @@ async def embed(
     url_idx: Optional[int] = None,
     user=Depends(get_verified_user),
 ):
+    if not request.app.state.config.ENABLE_OLLAMA_API:
+        raise HTTPException(status_code=503, detail="Ollama API is disabled")
+
     log.info(f"generate_ollama_batch_embeddings {form_data}")
 
     if url_idx is None:
@@ -1077,6 +1101,9 @@ async def embeddings(
     url_idx: Optional[int] = None,
     user=Depends(get_verified_user),
 ):
+    if not request.app.state.config.ENABLE_OLLAMA_API:
+        raise HTTPException(status_code=503, detail="Ollama API is disabled")
+
     log.info(f"generate_ollama_embeddings {form_data}")
 
     if url_idx is None:
@@ -1167,6 +1194,9 @@ async def generate_completion(
     url_idx: Optional[int] = None,
     user=Depends(get_verified_user),
 ):
+    if not request.app.state.config.ENABLE_OLLAMA_API:
+        raise HTTPException(status_code=503, detail="Ollama API is disabled")
+
     if url_idx is None:
         await get_all_models(request, user=user)
         models = request.app.state.OLLAMA_MODELS
@@ -1259,6 +1289,9 @@ async def generate_chat_completion(
     bypass_filter: Optional[bool] = False,
     bypass_system_prompt: bool = False,
 ):
+    if not request.app.state.config.ENABLE_OLLAMA_API:
+        raise HTTPException(status_code=503, detail="Ollama API is disabled")
+
     # NOTE: We intentionally do NOT use Depends(get_session) here.
     # Database operations (get_model_by_id, has_access) manage their own short-lived sessions.
     # This prevents holding a connection during the entire LLM call (30-60+ seconds),
diff --git a/backend/open_webui/routers/openai.py b/backend/open_webui/routers/openai.py
index 0b5433314c..a4dce3fe0c 100644
--- a/backend/open_webui/routers/openai.py
+++ b/backend/open_webui/routers/openai.py
@@ -545,6 +545,9 @@ async def get_all_models(request: Request, user: UserModel) -> dict[str, list]:
 async def get_models(
     request: Request, url_idx: Optional[int] = None, user=Depends(get_verified_user)
 ):
+    if not request.app.state.config.ENABLE_OPENAI_API:
+        raise HTTPException(status_code=503, detail="OpenAI API is disabled")
+
     models = {
         "data": [],
     }