How It Works
1. Install
Add the Xen extension to your browser from the Chrome Web Store.
2. Configure
Set your persona and tone to match your brand voice.
3. Reply
Click the Xen button to instantly generate a high-quality, on-brand reply.
Why You'll Love Xen
Save Time & Effort
Stop wasting time thinking of replies. Generate authentic, on-brand responses in a single click.
Boost Your Engagement
Increase your reply rate and build a stronger connection with your audience.
Grow Your Following
Consistently engaging with others is the key to growing your audience on X.
Maintain Your Brand Voice
Customize the AI's personality and tone to ensure every reply sounds like you.
Open-Source & Transparent
Xen is open-source, so you can inspect the code and be sure of your privacy.
Flexible and Powerful
Use our subscription for a seamless experience, or bring your own OpenRouter key.
Subscription: The Ultimate Convenience
Bring Your Own Key
- Good for technical users and light usage.
- Requires an OpenRouter account and API key.
- You pay OpenRouter directly for your usage.
Xen Subscription
- The easiest way to get started. No API keys needed.
- Access to premium AI models.
- Predictable, all-inclusive pricing.
- Priority support.
Choose Your Plan
20 free replies for every new user. No credit card required!
Indie
- A ton of AI-replies
$4.9/month
Founder mode
- Unlimited AI-replies
$250/month
Frequently Asked Questions
Is Xen free?
Yes, Xen is a free and open-source browser extension. You can use it with your own OpenRouter API key, or you can subscribe to one of our plans for a more seamless experience.
How does the subscription work?
Our subscription plans provide you with an all-inclusive, managed experience. You get access to premium AI models without needing to provide your own API key. It's the most convenient way to use Xen.
Is Xen safe?
Yes, Xen is safe to use. It runs entirely in your browser and does not collect any personal data. The code is open-source, so you can verify this for yourself.
What AI models can I use?
If you bring your own key, you can use any model available on OpenRouter. Our subscription plans offer access to a curated selection of high-quality and premium models.