API set up

one of my clients use More Fields plugin and we want to generate a feed of the data entered using that plugin.

http://ww.wp.xz.cn/support/plugin/more-fields

Have installed JSON WP plugin to generate the feed but the feed does not pick up the data entered using More Fields plugin.

http://ww.wp.xz.cn/extend/plugins/json-api/

is there a another WP plugin that will be able to pick up data entered using More Fields plugin? if not, what are the other options to get that data via a feed?

http://ww.wp.xz.cn/extend/plugins/more-fields/