diff --git a/comfy_api/latest/_io.py b/comfy_api/latest/_io.py
index 07e1551f1..8916772a3 100644
--- a/comfy_api/latest/_io.py
+++ b/comfy_api/latest/_io.py
@@ -1253,6 +1253,12 @@ class Curve(ComfyTypeIO):
             if default is None:
                 self.default = [(0.0, 0.0), (1.0, 1.0)]
 
+        def as_dict(self):
+            d = super().as_dict()
+            if self.default is not None:
+                d["default"] = {"points": [list(p) for p in self.default], "interpolation": "monotone_cubic"}
+            return d
+
 
 DYNAMIC_INPUT_LOOKUP: dict[str, Callable[[dict[str, Any], dict[str, Any], tuple[str, dict[str, Any]], str, list[str] | None], None]] = {}
 def register_dynamic_input_func(io_type: str, func: Callable[[dict[str, Any], dict[str, Any], tuple[str, dict[str, Any]], str, list[str] | None], None]):
diff --git a/comfy_extras/nodes_curve.py b/comfy_extras/nodes_curve.py
new file mode 100644
index 000000000..fec3ebbda
--- /dev/null
+++ b/comfy_extras/nodes_curve.py
@@ -0,0 +1,42 @@
+from __future__ import annotations
+
+from comfy_api.latest import ComfyExtension, io
+from comfy_api.input import CurveInput, MonotoneCubicCurve, LinearCurve
+from typing_extensions import override
+
+
+class CurveEditor(io.ComfyNode):
+    @classmethod
+    def define_schema(cls):
+        return io.Schema(
+            node_id="CurveEditor",
+            display_name="Curve Editor",
+            category="utils",
+            inputs=[
+                io.Curve.Input("curve"),
+            ],
+            outputs=[
+                io.Curve.Output("curve"),
+            ],
+        )
+
+    @classmethod
+    def execute(cls, curve) -> io.NodeOutput:
+        if isinstance(curve, CurveInput):
+            return io.NodeOutput(curve)
+        raw_points = curve["points"] if isinstance(curve, dict) else curve
+        points = [(float(x), float(y)) for x, y in raw_points]
+        interpolation = curve.get("interpolation", "monotone_cubic") if isinstance(curve, dict) else "monotone_cubic"
+        if interpolation == "linear":
+            return io.NodeOutput(LinearCurve(points))
+        return io.NodeOutput(MonotoneCubicCurve(points))
+
+
+class CurveExtension(ComfyExtension):
+    @override
+    async def get_node_list(self):
+        return [CurveEditor]
+
+
+async def comfy_entrypoint():
+    return CurveExtension()
diff --git a/nodes.py b/nodes.py
index 1ff2a0c51..79874d051 100644
--- a/nodes.py
+++ b/nodes.py
@@ -2038,32 +2038,6 @@ class ImagePadForOutpaint:
         return (new_image, mask.unsqueeze(0))
 
 
-class CurveEditor:
-    @classmethod
-    def INPUT_TYPES(s):
-        return {
-            "required": {
-                "curve": ("CURVE", {"default": {"points": [[0, 0], [1, 1]], "interpolation": "monotone_cubic"}}),
-            }
-        }
-
-    RETURN_TYPES = ("CURVE",)
-    RETURN_NAMES = ("curve",)
-    FUNCTION = "execute"
-    CATEGORY = "utils"
-
-    def execute(self, curve):
-        from comfy_api.input import CurveInput, MonotoneCubicCurve, LinearCurve
-        if isinstance(curve, CurveInput):
-            return (curve,)
-        raw_points = curve["points"] if isinstance(curve, dict) else curve
-        points = [(float(x), float(y)) for x, y in raw_points]
-        interpolation = curve.get("interpolation", "monotone_cubic") if isinstance(curve, dict) else "monotone_cubic"
-        if interpolation == "linear":
-            return (LinearCurve(points),)
-        return (MonotoneCubicCurve(points),)
-
-
 NODE_CLASS_MAPPINGS = {
     "KSampler": KSampler,
     "CheckpointLoaderSimple": CheckpointLoaderSimple,
@@ -2132,7 +2106,6 @@ NODE_CLASS_MAPPINGS = {
     "ConditioningZeroOut": ConditioningZeroOut,
     "ConditioningSetTimestepRange": ConditioningSetTimestepRange,
     "LoraLoaderModelOnly": LoraLoaderModelOnly,
-    "CurveEditor": CurveEditor,
 }
 
 NODE_DISPLAY_NAME_MAPPINGS = {
@@ -2201,7 +2174,6 @@ NODE_DISPLAY_NAME_MAPPINGS = {
     # _for_testing
     "VAEDecodeTiled": "VAE Decode (Tiled)",
     "VAEEncodeTiled": "VAE Encode (Tiled)",
-    "CurveEditor": "Curve Editor",
 }
 
 EXTENSION_WEB_DIRS = {}
@@ -2483,6 +2455,7 @@ async def init_builtin_extra_nodes():
         "nodes_sdpose.py",
         "nodes_math.py",
         "nodes_painter.py",
+        "nodes_curve.py",
     ]
 
     import_failed = []