Why Key-Rex?
Here's how Key-Rex stacks up against the traditional ways people sign in to websites
How Does Key-Rex Compare to Other Sign-In Methods?
Here's how Key-Rex stacks up against the traditional ways people sign in to websites:
| Feature | Key-Rex | Email/Password | OAuth (Google/Facebook) |
|---|---|---|---|
| Setup Time | ✓ Minutes | Hours/Days | Hours |
| Cost | ✓ No Cost | Email service costs | Free (with data sharing) |
| Password Breaches | ✓ Impossible | ✗ High Risk | No passwords |
| User Data Collection | ✓ None | Emails required | ✗ Extensive |
| Privacy Compliance | ✓ Minimal burden | GDPR/CCPA applies | GDPR/CCPA applies |
| Email Verification | ✓ Not needed | ✗ Required | Not needed |
| User Friction | ✓ One click | Registration + email | OAuth popup |
| Dependency on Third Party | ✓ Decentralized | Email provider | ✗ Google/Facebook |
| Open Source | ✓ Yes | Varies | ✗ Proprietary |
| Infrastructure Required | ✓ Minimal | Email service, DB | OAuth integration |
Built by a Bitcoiner, for Bitcoiners
Our mission is to help grow the Bitcoin ethos around the world—individual privacy, financial sovereignty, and the freedom that comes with truly decentralized technology.
Bitcoin-Only
To us, there is Bitcoin and that's it. We're not interested in creating or supporting products that aren't Bitcoin-focused. Every decision we make reinforces our commitment to Bitcoin.
Fix the Money, Fix the World
We believe that if we fix the money, we can fix the world. Bitcoin is the solution humanity needs to achieve its full potential—and we're building tools to help make that vision a reality.
When you choose Key-Rex, you're not just choosing authentication technology. You're choosing a partner who shares your values and is committed to the same mission: growing Bitcoin adoption and empowering individual sovereignty.
Key Benefits
Stop Worrying About Password Breaches
When users sign in with their Lightning wallet, there are no passwords to steal. They use cryptographic signatures (the same security that protects Bitcoin) to prove who they are. This means you don't have to worry about password databases being hacked, and your users don't have to worry about their passwords being stolen.
Your Visitors Will Love How Fast It Is
Instead of filling out forms and waiting for email verification codes, your visitors can sign in with just one click. No typing passwords, no checking email inboxes. This faster experience typically means more people actually complete the sign-in process instead of giving up halfway through.
Get It Running Quickly
Adding Key-Rex to your website is straightforward. You add two lines of code to your HTML, set up a simple backend endpoint to receive sign-in information, and you're done. You don't need to set up email services, create user databases, or configure complex systems. Most people can get it working in under an hour.
Better Privacy for Everyone
With Key-Rex, you don't need to collect email addresses, names, or any personal information from your visitors. They sign in using their wallet, which proves their identity without sharing personal details. This means less data for you to protect, simpler privacy compliance, and more privacy for your users.
Works For Any Website
Whether you run an online store, a blog, a SaaS application, or something else entirely, Key-Rex can work for you. Here are some common ways website owners can use it. You stay in control of how accounts work on your side—you can treat each wallet as a separate user, or allow multiple wallets (multiple xpubs) to unlock the same account in your own system.
Online Stores
Make checkout faster and easier. Customers can sign in instantly without waiting for email codes, which means fewer abandoned carts. Plus, you won't get support requests about forgotten passwords.
- • Faster checkout process
- • No password reset requests
- • Reduced cart abandonment
Software-as-a-Service Apps
Give your users a modern sign-in option that's more secure than passwords. You won't have to worry about securing email databases or dealing with password breach notifications.
- • Reduced security liability
- • Better user experience
- • Lower infrastructure costs
Blogs & Content Sites
Let visitors comment or access member-only content without the hassle of managing user accounts, email verification, or password resets.
- • Comment authentication
- • Member-only content
- • No spam accounts
Community Platforms
Lower the barrier to entry for your community. People can join and start participating immediately without filling out long registration forms or waiting for email confirmations.
- • Lower signup friction
- • Higher engagement rates
- • Privacy-focused approach
Developer Tools
If your audience is technical, they'll appreciate the cryptographic security and privacy-focused approach. It aligns with the values many developers care about.
- • Appeals to technical users
- • Aligns with crypto values
- • Minimal data collection
Membership Sites
Control access to your premium content securely. Members can sign in instantly without email verification delays, so they can access what they paid for right away.
- • Quick access activation
- • No email delays
- • Secure identity verification
Better Security
No passwords to breach, no email databases to compromise. Cryptographic signatures provide superior security.
Better Privacy
Minimal data collection, no tracking, no sharing with third parties. Your users' privacy is protected.
Better Experience
One-click authentication with no registration forms, email verification, or password resets.
Ready to Try It?
If Key-Rex sounds like it could work for your website, you can get started in just a few minutes. There's no cost, no credit card required, and no long-term commitment.
Get Your Integration Code →