diff --git a/apps/rmbg/api.py b/apps/rmbg/api.py
index fce50f6..ec8d725 100644
--- a/apps/rmbg/api.py
+++ b/apps/rmbg/api.py
@@ -57,3 +57,25 @@ async def remove_background_file(file: UploadFile = File(...), request: Request
         process_and_stream(),
         media_type="application/x-ndjson"
     )
+
+@router.post(settings.file_free_route)
+async def remove_background_file_free(file: UploadFile = File(...)):
+    """
+    免费版本：从上传的文件移除背景（流式返回）
+    
+    Args:
+        file: 上传的图片文件
+        
+    Returns:
+        流式响应，包含处理后的图片内容
+    """
+    content = await file.read()
+    
+    async def process_and_stream():
+        result = await service.remove_background_from_file(content)
+        yield json.dumps(result) + "\n"
+    
+    return StreamingResponse(
+        process_and_stream(),
+        media_type="application/x-ndjson"
+    )
diff --git a/apps/rmbg/settings.py b/apps/rmbg/settings.py
index 6607497..c9bcbcb 100644
--- a/apps/rmbg/settings.py
+++ b/apps/rmbg/settings.py
@@ -11,6 +11,7 @@ class Settings(BaseSettings):
     # API路由配置
     router_prefix: str = "/rmbg"
     file_route: str = "/file" 
+    file_free_route: str = "/file/free"
     batch_route: str = "/batch" 
     api_name: str = "remove_background"