Keyfab
Introducing Hosted Checkout v2

The Ultimate Monetization API for Software

Drop in our API to instantly sell, license, and distribute your software. No billing logic. No database to manage. Just pure growth.

⚡Sub-50ms Latency💳Stripe & LemonSqueezy🛡️Ed25519 Security
Core Infrastructure

The Licensing Ecosystem.

Everything you need to secure your desktop apps, monetize your APIs, and manage customer subscriptions seamlessly.

For Desktop & Mobile

License Generation

Cryptographically Secure Keys.

Generate node-locked, floating, or offline-capable license keys. Our Ed25519 signed payloads ensure that your software cannot be cracked or spoofed.

  • 🔒Ed25519 Cryptography
  • 💻Hardware Fingerprinting
  • 📡Offline License Activation
  • ⚡Sub-50ms Validation
For Indie Hackers & SaaS

Hosted Checkout

Connect Stripe. Sell instantly.

Connect your payment gateway and we handle the rest. Automatic license provisioning, webhook syncing, and beautiful checkout pages ready in seconds.

  • 💳Stripe & LemonSqueezy native
  • 📧Automated License Emails
  • 🔄Subscription Syncing
  • 🎨White-labeled Customer Portals
Developer Experience

Three lines of code.
Total protection.

Our REST API is designed to be impossibly simple to integrate. Validate licenses in your desktop, CLI, or web app in milliseconds.

cURLNode.jsGo
# Validate a license key for a specific machine
curl -X POST https://api.keyfab.com/v1/licenses/validate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "key": "XXXX-XXXX-XXXX-XXXX",
    "machineFingerprint": "hw_id_93jf823"
  }'

Start monetizing today.

Join the next generation of developers using Keyfab to handle everything from checkout to licensing.