DawsonyWeb

DawsonyWeb Security Shield protects your WordPress site from comment spam and unauthorised API access.
Comment Protection
<ul>
<li>Master switch to completely disable all comments (form, REST API, XML-RPC, feeds)</li>
<li>Invisible honeypot field to trap bots</li>
<li>Minimum comment length enforcement</li>
<li>Block all links or cap links per comment</li>
<li>Require login to comment</li>
<li>Keyword/phrase blocklist</li>
</ul>
API & REST Hardening
<ul>
<li>Disable XML-RPC entirely (removes X-Pingback header too)</li>
<li>Hide <code>/wp/v2/users</code> endpoint to prevent username harvesting</li>
<li>Require authentication for all REST API requests</li>
<li>Optionally disable the REST API completely</li>
<li>Block author enumeration via <code>/?author=N</code></li>
</ul>
Spam Rules
<ul>
<li>Per-IP comment rate limiting (configurable max and time window)</li>
<li>IP address blocklist — blocked IPs receive a 403 on any front-end request</li>
<li>Rolling activity log (last 200 events)</li>
</ul>

DawsonyWeb – Security Shield

Spam comment protection, comment disabling, XML-RPC hardening, REST API lockdown, user enumeration blocking, and IP blocklisting.

yehudah

multipie ways to help block xmlrpc attacks.
This plugin have this options:
First Option: 
Log errors and access – to debug plugin errors and access to the xmlrpc file.
The protection options:
<ul>
<li>Disable xmlrpc – disable the file complete with wordpress built in option.</li>
<li>Block login errors ip’s in htaccess – every WRONG login attempt will be blocked inside the htaccess file.</li>
<li>Enable xmlrpc for a specific user – give permission to access the file to pre define user you will choose.</li>
<li>Disable xmlrpc built in functions – xmlrpc have many options and actions to query on your wordpress site, with this option you can choose which option to disable and wich to keep enabled.</li>
</ul>

xmlrpc attacks blocker

multipie ways to help block xmlrpc attacks.

DawsonyWeb – Security Shield vs xmlrpc attacks blocker