diff --git a/__init__.py b/__init__.py
index 9c8a94c..7c4cc95 100644
--- a/__init__.py
+++ b/__init__.py
@@ -394,6 +394,7 @@ try:
         accumulator_delete_entries,
         accumulator_list_entries,
         accumulator_move_entry,
+        accumulator_save_entries,
     )
     from .prompt_builder import (
         build_camera_config_json,
@@ -471,6 +472,7 @@ except ImportError:
         accumulator_delete_entries,
         accumulator_list_entries,
         accumulator_move_entry,
+        accumulator_save_entries,
     )
     from prompt_builder import (
         build_camera_config_json,
@@ -583,6 +585,21 @@ if PromptServer is not None and web is not None:
         except Exception as exc:
             return web.json_response({"error": str(exc)}, status=400)
 
+    @PromptServer.instance.routes.post("/sxcp/accumulator/save")
+    async def sxcp_accumulator_save(request):
+        try:
+            payload = await request.json()
+            result = accumulator_save_entries(
+                store_key=str(payload.get("store_key") or ""),
+                save_path=str(payload.get("save_path") or "sxcp_accumulator"),
+                filename_prefix=str(payload.get("filename_prefix") or "sxcp_accum"),
+                clear_after_save=bool(payload.get("clear_after_save")),
+                preview_limit=int(payload.get("preview_limit") or 0),
+            )
+            return web.json_response(result)
+        except Exception as exc:
+            return web.json_response({"error": str(exc)}, status=400)
+
     @PromptServer.instance.routes.post("/sxcp/accumulator/move")
     async def sxcp_accumulator_move(request):
         try:
diff --git a/loop_nodes.py b/loop_nodes.py
index b6cef0f..f4ccd73 100644
--- a/loop_nodes.py
+++ b/loop_nodes.py
@@ -317,6 +317,31 @@ def accumulator_delete_entries(
     return result
 
 
+def accumulator_save_entries(
+    store_key: str,
+    save_path: str = "sxcp_accumulator",
+    filename_prefix: str = "sxcp_accum",
+    clear_after_save: bool = False,
+    preview_limit: int = 0,
+) -> dict[str, Any]:
+    key = str(store_key or "").strip()
+    if not key:
+        raise ValueError("store_key is required for accumulator save")
+    store = _ACCUMULATOR_STORES.setdefault(key, [])
+    saved_paths = _save_images_to_folder(store, save_path, filename_prefix, None, None)
+    if saved_paths and bool(clear_after_save):
+        store.clear()
+    result = accumulator_list_entries(key, preview_limit=preview_limit)
+    result["saved_paths"] = saved_paths
+    result["saved"] = len(saved_paths)
+    result["cleared_after_save"] = bool(saved_paths and clear_after_save)
+    result["status"] = (
+        f"{result.get('status', '')}; saved={len(saved_paths)}"
+        f"{'; cleared_after_save' if saved_paths and clear_after_save else ''}"
+    )
+    return result
+
+
 def accumulator_move_entry(
     store_key: str,
     preview_key: str = "",
diff --git a/web/accumulator_preview.js b/web/accumulator_preview.js
index aa170ff..99cc777 100644
--- a/web/accumulator_preview.js
+++ b/web/accumulator_preview.js
@@ -594,26 +594,22 @@ async function clearStore(node) {
 }
 
 async function saveBatch(node) {
-    const saveWidget = widget(node, "save_batch");
-    if (!saveWidget) {
-        alert("Missing save_batch widget.");
+    const key = storeKey(node);
+    if (!key) {
+        alert("Set the same explicit store_key on the Accumulator and Accumulator Preview first.");
         return;
     }
-    setWidgetValue(node, "finished", true);
-    setWidgetValue(node, "save_batch", true);
-    node.setDirtyCanvas?.(true, true);
     try {
-        try {
-            await app.queuePrompt(0, 1);
-        } catch (_err) {
-            await app.queuePrompt(0);
-        }
+        const data = await postJson("/sxcp/accumulator/save", actionPayload(node, {
+            store_key: key,
+            save_path: widget(node, "save_path")?.value || "sxcp_accumulator",
+            filename_prefix: widget(node, "filename_prefix")?.value || "sxcp_accum",
+            clear_after_save: !!widget(node, "clear_after_save")?.value,
+        }));
+        applyData(node, data, data.status || `saved=${data.saved || 0}`);
     } catch (err) {
-        console.error(`[${EXTENSION}] save queue failed`, err);
+        console.error(`[${EXTENSION}] direct save failed`, err);
         alert(`Save failed: ${err}`);
-    } finally {
-        setWidgetValue(node, "save_batch", false);
-        node.setDirtyCanvas?.(true, true);
     }
 }