AMP Theme Framework is free download AMP framework by AMPforWP team to develop your own customized WordPress AMP themes. It is a starter theme which you can fork and use to build a custom AMP theme powered by WordPress and the AMP for WP plugin. they have develop this framework for people to create themes on top of AMP. its very easy to use and intuitive. AMP Theme Framework comes with a free basic AMP theme which you can use to customize and built your very own AMP theme.