Protect your Content

Know which AI companies are reading your articles.
Choose to log silently or block anonymous agents entirely.

01

Install the WordPress plugin

Get the free open-source plugin from GitHub and activate it on your WordPress site. No coding required.

02

Configure per-article

For each article, choose: Log only (allow all, track verified agents) or Block anonymous (require registration).

03

Get notified

Receive email notifications when a verified AI company reads your content, with company name and purpose.

WordPress Plugin

Free & open source · WordPress 5.9+ · PHP 7.4+

View on GitHub →

Installation

Go to the GitHub repository and click Code → Download ZIP
In WordPress Admin, go to Plugins → Add New → Upload Plugin
Upload the .zip file and click Install Now, then Activate
Go to Settings → Apeiron → scroll to Apeiron Registry section
Enter your Publisher Email (where you want to receive notifications)
For each article, set the protection mode in the Apeiron Paywall meta box

What anonymous agents receive

When "Block anonymous" mode is enabled:

HTTP/1.1 401 Unauthorized
Content-Type: application/json

{
  "error": "Agent identification required",
  "protocol": "Apeiron Registry v1.0",
  "register_url": "https://www.apeiron-registry.com/register",
  "standard_headers": {
    "X-Apeiron-Agent-ID": "your_agent_id",
    "X-Apeiron-API-Key": "your_api_key",
    "X-Apeiron-Purpose": "training|inference|search"
  },
  "message": "Register your AI agent at www.apeiron-registry.com"
}

Not a publisher? Register your AI agent instead.