diff --git a/lib/python/qmk/cli/generate/api.py b/lib/python/qmk/cli/generate/api.py
index 83118184764..7f7c05f6e23 100755
--- a/lib/python/qmk/cli/generate/api.py
+++ b/lib/python/qmk/cli/generate/api.py
@@ -131,6 +131,11 @@ def generate_api(cli):
             if keymap_rel is None:
                 cli.log.debug('Skipping keymap %s (not in qmk_firmware)', keymap)
                 continue
+
+            if (keymap_rel / 'keymap.c').exists():
+                cli.log.debug('Skipping keymap %s (not pure dd keymap)', keymap)
+                continue
+
             kb_json['keymaps'][keymap.name] = {
                 # TODO: deprecate 'url' as consumer needs to know its potentially hjson
                 'url': f'https://raw.githubusercontent.com/qmk/qmk_firmware/master/{keymap_rel}/keymap.json',