diff --git a/.gitignore b/.gitignore
index 7446045..388ab26 100644
--- a/.gitignore
+++ b/.gitignore
@@ -34,3 +34,5 @@ Thumbs.db
 
 # Cursor
 .cursorrules
+
+*.log
diff --git a/README.md b/README.md
index a40ad42..9c4c6a9 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ ComfyUI-OneAPI is a plugin that provides simple REST API interfaces for ComfyUI,
 curl -X POST "http://localhost:8188/oneapi/v1/execute" \
   -H "Content-Type: application/json" \
   -d '{
-    "workflow": {...}  # Replace with your workflow JSON
+    "workflow": {...}  # Supports JSON object, local filename, or URL
   }'
 ```
 
@@ -20,7 +20,7 @@ curl -X POST "http://localhost:8188/oneapi/v1/execute" \
 
 ```json
 {
-  "workflow": {...}  // API version of workflow JSON
+  "workflow": {...}  # Supports JSON object, local filename, or URL
 }
 ```
 
@@ -87,7 +87,7 @@ POST /oneapi/v1/execute
 
 Request Body:
 {
-    "workflow": {...},               // API version of workflow JSON
+    "workflow": {...},               // Supports JSON object, local filename, or URL
     "params": {...},                 // Optional: Parameter mapping
     "wait_for_result": true/false,   // Optional: Wait for results (default true)
     "timeout": 300                   // Optional: Timeout in seconds
@@ -119,7 +119,7 @@ Add markers to SaveImage node titles:
 curl -X POST "http://localhost:8188/oneapi/v1/execute" \
   -H "Content-Type: application/json" \
   -d '{
-    "workflow": '"$(cat workflows/example_workflow.json)"',
+    "workflow": "$(cat workflows/example_workflow.json)",  # Supports JSON object, local filename, or URL
     "params": {
         "prompt": "a cute dog with a red hat"
     }
@@ -132,7 +132,7 @@ curl -X POST "http://localhost:8188/oneapi/v1/execute" \
 curl -X POST "http://localhost:8188/oneapi/v1/execute" \
   -H "Content-Type: application/json" \
   -d '{
-    "workflow": '"$(cat workflows/example_img2img_workflow.json)"',
+    "workflow": "$(cat workflows/example_img2img_workflow.json)",  # Supports JSON object, local filename, or URL
     "params": {
         "prompt": "a cute dog with a red hat",
         "image": "https://example.com/input.jpg"
@@ -144,4 +144,30 @@ curl -X POST "http://localhost:8188/oneapi/v1/execute" \
 
 - 🔄 This plugin uses HTTP polling to get results, does not provide WebSocket real-time progress
 - ⏱️ Long-running workflows may cause request timeouts, consider setting appropriate timeout values
-- 🏷️ Parameter mapping and output marking depend on special markers in node titles 
\ No newline at end of file
+- 🏷️ Parameter mapping and output marking depend on special markers in node titles 
+
+## /oneapi/v1/execute API - workflow parameter supports three forms
+
+### Supported forms for the workflow parameter
+
+- 1. Pass workflow as a JSON object (original logic).
+- 2. Pass a local workflow filename (e.g. `1.json`), which will be loaded from `user/default/workflows/1.json`.
+- 3. Pass a workflow URL (e.g. `http://xxx/1.json`), which will be downloaded and parsed automatically.
+
+How to distinguish:
+- If workflow is a dict, use it directly.
+- If workflow is a string starting with `http://` or `https://`, treat as URL and download.
+- Otherwise, treat as a local filename and load from `user/default/workflows` directory.
+
+**Examples:**
+```json
+// 1. Pass JSON directly
+{"workflow": {"node1": {...}, ...}}
+
+// 2. Pass local filename
+// 1.json corresponds to <ComfyUI root>/user/default/workflows/1.json
+{"workflow": "1.json"}
+
+// 3. Pass URL
+{"workflow": "https://example.com/1.json"}
+``` 
\ No newline at end of file
diff --git a/README_CN.md b/README_CN.md
index 480954b..9126f56 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -12,7 +12,7 @@ ComfyUI-OneAPI 是一个为 ComfyUI 提供简单REST API接口的插件，只需
 curl -X POST "http://localhost:8188/oneapi/v1/execute" \
   -H "Content-Type: application/json" \
   -d '{
-    "workflow": {...}  # 替换为您的工作流JSON
+    "workflow": {...}  # 支持JSON对象、本地文件名或URL
   }'
 ```
 
@@ -87,7 +87,7 @@ POST /oneapi/v1/execute
 
 请求体:
 {
-    "workflow": {...},               // 工作流的API版JSON
+    "workflow": {...},               // 支持JSON对象、本地文件名或URL
     "params": {...},                 // 可选：参数映射
     "wait_for_result": true/false,   // 可选：是否等待结果（默认true）
     "timeout": 300                   // 可选：超时时间（秒）
@@ -119,7 +119,7 @@ POST /oneapi/v1/execute
 curl -X POST "http://localhost:8188/oneapi/v1/execute" \
   -H "Content-Type: application/json" \
   -d '{
-    "workflow": '"$(cat workflows/example_workflow.json)"',
+    "workflow": "$(cat workflows/example_workflow.json)",  # 支持JSON对象、本地文件名或URL
     "params": {
         "prompt": "a cute dog with a red hat"
     }
@@ -132,7 +132,7 @@ curl -X POST "http://localhost:8188/oneapi/v1/execute" \
 curl -X POST "http://localhost:8188/oneapi/v1/execute" \
   -H "Content-Type: application/json" \
   -d '{
-    "workflow": '"$(cat workflows/example_img2img_workflow.json)"',
+    "workflow": "$(cat workflows/example_img2img_workflow.json)",  # 支持JSON对象、本地文件名或URL
     "params": {
         "prompt": "a cute dog with a red hat",
         "image": "https://example.com/input.jpg"
@@ -144,4 +144,30 @@ curl -X POST "http://localhost:8188/oneapi/v1/execute" \
 
 - 🔄 此插件使用HTTP轮询获取结果，不提供WebSocket实时进度
 - ⏱️ 长时间运行的工作流可能导致超时，请设置合适的timeout值
-- 🏷️ 参数映射和输出标记依赖于节点标题中的特殊标记 
\ No newline at end of file
+- 🏷️ 参数映射和输出标记依赖于节点标题中的特殊标记 
+
+## /oneapi/v1/execute 接口说明
+
+### workflow 参数支持三种形式
+
+- 1. 直接传递 workflow 的 JSON 对象（原有逻辑）。
+- 2. 传递本地 workflow 文件名（如 `1.json`），会自动从 `user/default/workflows/1.json` 读取。
+- 3. 传递 workflow 的 URL（如 `http://xxx/1.json`），会自动下载并解析。
+
+区分方式：
+- 如果 workflow 是 dict，则直接用。
+- 如果 workflow 是字符串且以 `http://` 或 `https://` 开头，则当作 URL 下载。
+- 否则当作本地文件名，从 `user/default/workflows` 目录加载。
+
+**示例：**
+```json
+// 1. 直接传 JSON
+{"workflow": {"node1": {...}, ...}}
+
+// 2. 传本地文件名
+// 1.json 对应的是 <ComfyUI根目录>/user/default/workflows/1.json
+{"workflow": "1.json"}
+
+// 3. 传 URL
+{"workflow": "https://example.com/1.json"}
+``` 
\ No newline at end of file
diff --git a/oneapi.py b/oneapi.py
index 8b4575e..69e7d61 100644
--- a/oneapi.py
+++ b/oneapi.py
@@ -15,13 +15,18 @@ import execution
 # Get routes
 routes = PromptServer.instance.routes
 
+# Get workflow paths
+path_custom_nodes = os.path.dirname(os.path.dirname(__file__))
+path_comfyui_root = os.path.dirname(path_custom_nodes)
+path_workflows = os.path.join(path_comfyui_root, 'user/default/workflows')
+
 @routes.post('/oneapi/v1/execute')
 async def execute_workflow(request):
     """
     Execute workflow API
     
     Parameters:
-    - workflow: Workflow JSON
+    - workflow: Workflow JSON, filename (under user/default/workflows/), or URL
     - params: Parameter mapping dictionary
     - wait_for_result: Whether to wait for results (default True)
     - timeout: Timeout in seconds (default 300)
@@ -50,6 +55,19 @@ async def execute_workflow(request):
         params = data.get('params', {})
         wait_for_result = data.get('wait_for_result', True)
         timeout = data.get('timeout', None)
+
+        # Support workflow as local path or URL
+        if isinstance(workflow, dict):
+            pass  # Use directly
+        elif isinstance(workflow, str):
+            if workflow.startswith('http://') or workflow.startswith('https://'):
+                # URL, download
+                workflow = await _load_workflow_from_url(workflow)
+            else:
+                # Local filename
+                workflow = _load_workflow_from_local(workflow)
+        else:
+            return web.json_response({"error": "Invalid workflow parameter"}, status=400)
         
         if not workflow:
             return web.json_response({"error": "Workflow data is missing"}, status=400)
@@ -476,4 +494,32 @@ async def _wait_for_results(prompt_id, timeout=None, request=None, output_id_2_v
         # Wait before checking again
         await asyncio.sleep(1.0)
 
+# New: Load workflow from local file
+
+def _load_workflow_from_local(filename):
+    """
+    Load workflow JSON from user/default/workflows directory
+    """
+    file_path = os.path.join(path_workflows, filename)
+    if not os.path.isfile(file_path):
+        raise Exception(f"Workflow file not found: {file_path}")
+    with open(file_path, 'r', encoding='utf-8') as f:
+        return json.load(f)
+
+# New: Load workflow from URL
+
+async def _load_workflow_from_url(url):
+    """
+    Download workflow JSON from URL
+    """
+    async with aiohttp.ClientSession() as session:
+        async with session.get(url) as response:
+            if response.status != 200:
+                raise Exception(f"Failed to download workflow: HTTP {response.status}")
+            text = await response.text()
+            try:
+                return json.loads(text)
+            except Exception as e:
+                raise Exception(f"Invalid workflow JSON from url: {e}")
+
 print("ComfyUI-OneAPI routes registered") 
\ No newline at end of file