Is it necessary and how to delete pages with /wp-json/ addresses?

Question

WordPress

1. Is it enough to prohibit them in robots.txt
2. If, in addition to the prohibition, it is required to remove it, how best to use code that roams the sites or a plugin, say Disable REST API
3. Will this ever stop (in some version)?

Answer 1

Install the plugin
https://ru.wordpress.org/plugins/clearfy/
it has a lot of useful stuff. Including the ability to disable the REST API