Connection control
Per-IP windows, global login caps, subnet throttling, and malformed-handshake rejection run before a username exists.
Leviathan
Edge layerFree Trial · Premium
The anti-bot edge for Minecraft proxies.
A proxy fork that filters, verifies, and observes connections inside the Netty pipeline — before they reach your world.
System mapEdge
Ingress
Connections
Handshake
LEVIATHAN / NETTY
01 Throttle
02 FrameGuard
03 Verification
04 Reputation
fail-open protection
Backends
Lobby
Game server
Built for the layer it owns.
Leviathan is a fork, not a plugin. The anti-bot engine is compiled into the proxy and wired into the Netty connection path, so throttle, verification, and frame limits see traffic before a backend server does.
The design goal is boring reliability: a normal JVM process, HTTPS-only reputation calls, small versioned persistence, no system commands, and a clear line between Free Trial and the privately validated Premium edition.
Verification that ends
Reconnect challenges, username rules, name-flood detection, and FrameGuard — packet-rate, login-size, and login-deadline limits that detach after verification.
Network intelligence
Offline MaxMind country and ASN blocks, plus optional HTTPS reputation checks that are cached and attack-gated to protect quota.
Persistent blacklist
IP and username blacklists with auto-expiry, repeat-offender handling, and Discord webhook alerts on attack start and end.
No host takeover
Everything happens in the proxy process. Leviathan never runs system commands, edits firewall rules, or installs packages.
Fail-open by design
If the private entitlement validator is unreachable, protection stays active. The proxy does not die because a license server blinked.
When this is the right layer.
Public Minecraft networks running BungeeCord or Velocity
Operators replacing a brittle plugin stack with one proxy-level gate
Teams that need a hard edge without giving a jar root on the host
Specification
- Layer
- Edge / proxy
- Distribution
- BungeeCord and Velocity forks
- Runtime
- Java 17+ (Velocity build uses Java 25)
- Editions
- Free Trial and Premium
- Premium entitlement
- Spiky
Tell us what you are running and where it hurts. We will route the brief to the right system.
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