diff --git a/launchtools/extension_list.fds b/launchtools/extension_list.fds
index 830c8c27d..0fd08a543 100644
--- a/launchtools/extension_list.fds
+++ b/launchtools/extension_list.fds
@@ -367,3 +367,13 @@ KreaGoneWild:
     tags:
     - parameters
     - nodes
+
+H3Attn:
+    author: Juan Treminio
+    description: Attention and speedup options for the MiniMax H3 video model - a built-in window-attention node, plus optional support for the Sol-Attn and Spectrum custom nodes.
+    url: https://github.com/jtreminio/SwarmUI-H3Attn
+    license: MIT
+    tags:
+    - parameters
+    - nodes
+    - beta