Is there any comment-API access for creating a comments? I tryed create POST request for
/index.php?page=comment&id=_id_&s=save but csrf-token was always invalid. Have you any ideas for resolve this problem?

You need to provide your CSRF token to post comments (or tag edits, or anything that changes the site). You can get the CSRF token from the comment submit form. It'll be a hidden form element called "csrf-token".

You will also need to submit all of the login cookies that match that token: user_id, pass_hash, and PHPSESSID. If you submit a different PHPSESSID cookie, it won't work. In other words, you can't just copy the CSRF token from your browser into your program and expect it to work.

Thank you, i did it! And of course I forget about PHPSESSID cookie. Thanx for your advice