A customer using Frontity PRO is planning to migrate to their own development using Frontity Framework and they use the Akismet plugin to prevent spam in the comments.
I didn’t know if the Akismet anti-spam plugin is compatible with the REST API so I opened this issue: https://wordpress.org/support/topic/is-akismet-anti-spam-compatible-with-the-rest-api/
I’ll keep you posted 
This was fast.
One of the plugin authors confirmed the compatibility:
Yes, Akismet should be compatible, since the REST API uses the standard WordPress comment functions, and Akismet hooks into the
wp_insert_commentaction.
As far as I know we are not even using the REST API for comments, but the PHP POST API. Is that right @David?
Anyway, it should work with Akismet because Akismet works after the comment is submitted, it does not prevent submission.
That’s correct, Luis. We are making a POST request to the PHP comments endpoint, not the REST API.