Software licensing
that just works.
System Locker combines battle-tested auth with advanced administration features and outstanding uptime.
18.54M
Total Authentications
1.2K
Total Systems
170.2K
Total Users
Our strongest auth API yet is now available! Read the documentation
Worry less. Release more.
Privacy & Security First
All passwords are hashed, and developers cannot view user email addresses. Your data stays safe.
Easy Code, Great Support
We provide example code in multiple languages, a well-documented API, and fast support to help you succeed.
Ready to Scale
From 30 users to 30,000, System Locker grows with you.
Constantly Improving
New updates ship regularly and bugs get crushed fast. We won’t leave you hanging.
Premium features provide total control.
Powerful API
Build Discord bots, management tools, and upsell your users directly within your app using our API.
Aegis Detection
Aegis monitors license keys, reseller accounts, and admin accounts for suspicious activity.
It can also automatically flag and block VPN users, with email notifications for detected activity.
Reseller Panel
Give resellers access to key generation for your software. Fine-grained permissions mean a reseller can be blocked from seeing everyone else’s keys.
Admin Panel
Give admins and staff access to key generation and actions for your software.
Each admin gets their own set of permissions — ban, freeze, and reset HWID as needed.
Pricing
High Capacity Plans
Great for supporting existing apps or fast-growing projects.
Basic
$15 per year
Save by paying annually- Unlimited Systems
- Up to 200 Users
- 50 Variables per System
- ● All Auth APIs
- ● Auth Logs
- ● Management API
- ● Reseller & Admin Panels
- ● No Aegis detection
Standard
$50 per year
Save by paying annually- Unlimited Systems
- Up to 1,000 Users
- 50 Variables per System
- ● All Auth APIs
- ● Auth Logs
- ● Management API
- ● Reseller & Admin Panels
- ● No Aegis detection
Super
$100 per year
Save by paying annually- Unlimited Systems
- Up to 2,000 Users
- 100 Variables per System
- ● All Auth APIs
- ● Auth Logs
- ● Management API
- ● Reseller & Admin Panels
- ● Aegis detection included
Titan
$200 per year
Save by paying annually- Unlimited Systems
- Up to 5,000 Users
- 200 Variables per System
- ● All Auth APIs
- ● Auth Logs
- ● Management API
- ● Reseller & Admin Panels
- ● Aegis detection included
Rocket
$250 per year
Save by paying annually- Unlimited Systems
- Soft capped at 5,000 Monthly/50,000 Total Users (may exceed for 14 days)
- Viral surge protection: hard capped at 500,000 Users
- 200 Variables per System
- ● Simple and Nightflyer Auth APIs
- ● Auth Logs
- ● Management API
- ● Reseller & Admin Panels
- ● Offline-Optimized Aegis detection
Aegis Addon
Enhance your security with advanced protection against key sharing, reseller account sharing, and VPN usage with email notifications.
Get Started FreeNeed more users?
System Locker can still help you. Contact us for customized limits, maximum flexibility, and dedicated support.
Contact Sales via DiscordPerpetual Plans
Ideal for smaller programs or for testing out our service.
Free
$0
- 1 System
- 30 User Limit
- 5 Variables per System
- ● Basic auth API
- ● No Logs
- ● No Management API
- ● No Reseller or Admin Panel
- ● No Aegis detection
Lifetime
$5 once
Unlocks most features of a subscription!- 5 Systems
- Up to 50 Users
- 5 Variables per System
- ● All Auth APIs
- ● 30 Days of Logs
- ● No Management API
- ● No Reseller or Admin Panel
- ● No Aegis detection
Included with all subscriptions:
Nightflyer Auth
Coming soon!Offline-ready authentication with multiple layers of security, perfect for games that don't require constant online connectivity.
Bedrock Auth
Session-based auth with dynamic responses and strictly-timed heartbeats keep debuggers and key-sharers at bay.
Vanity Keys
License keys include your system name, and they’re shorter too.
Reseller / Admin Panel
Give resellers and admins access to your software with fully custom permissions.
Management API
Generate keys or reset HWID easily. Perfect for Discord bots.
Invisible Folder
View siteSubscriptions include storage for secure file uploads and distribution options.
Need a starting point? See common setups.
New here? Migrate today.
Already have a licensing system? We’ll help you switch. Get 20% off your first year when you migrate.