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MC License
Paid plugins get leaked and their keys get shared. MC License gives plugin developers cryptographically signed license checks, limits on how many servers a key can run on, and automatic key delivery when someone buys.

- License checks served
- 2.17M
- Licenses generated
- 10,361
- Plugins protected
- 549
How it works
A developer adds one check to their plugin with the MC License library. Every check is signed with RSA, so the response cannot be faked by a cracked server and cannot be replayed from an earlier valid one.
When someone buys the plugin on BuiltByBit, Polymart or Tebex, a key is created and delivered automatically. From the dashboard the developer sees which servers are running each key, and can limit, expire or block them.
Features
- RSA-signed license checks
- Server limits to stop key sharing
- Expiry dates for rentals and trials
- IP blocking that applies on the next check
- Live view of the servers on each key
- Check analytics over time
- Discord bot for customers to manage their own keys
- Plugin import from SpigotMC, BuiltByBit and Polymart