The readme points to https://wordpress.org/plugins/json-rest-api/ within:
"The latest stable version is available from the WordPress Plugin Directory." Which is the old version 1.2.5; which is really nothing like this version.

Likewise, the plugin page within WP admin points to http://wp-api.org/ for the "WP REST API Team" and "view details" points to an information page which is regarding a WP API version 1.0.3, which is entirely different!

Is that all intentional since 2.0 is still beta?