Movement prediction
Simulates movement tick by tick and flags fly, speed, NoFall and step the physics can't explain.
Anticheat for Minecraft servers
Stop the cheaters.
Keep the fair players.
Mythras catches movement and combat cheats, saves a replay of every flag, and uses AI Learning to throw out the false positives before your staff ever sees them.
- Replay on every flag
- AI Learning
- Free tier, no key needed
0 checks
0 vetoed by AI
0 confirmed
Available on Folia too
Paper, Spigot and Folia, Minecraft 1.21 to 26.x. Folia runs with the Pro plan.
Features
Every layer of defense, in one plugin
Detection finds the suspicious moment. Replay shows it. AI Learning decides if it's real.
Combat analysis
Reach, hitbox, KillAura, autoclicker and timer, judged on the packets the client really sends.
Replay evidence
Every flag comes with a clip of the seconds before it. Scrub, step frame by frame, share with staff.
AI Learning
Learns your server's normal lag and player habits, and vetoes flags that are just noise.
Whitelist and exceptions
Exclude trusted players or specific mechanics so staff only sees what needs attention.
License panel and API
Keys, expiry and revocation managed from your dashboard. The plugin checks a key with one API call.
Replay
Don't guess. Watch it.
Each flag is saved with the moments that led up to it. Press play, scrub the timeline, or click an event to jump straight to it.
Included in Pro. Replays are deleted automatically after 7 days.
Flag #4821 · Player_01
Speed
Demo replay
AI Learning
Fewer alerts. Only real cheats.
Rule-based checks can't tell a lag spike from a speed hack. AI Learning studies how your server normally behaves and vetoes flags that are just noise, so staff only acts on what's real.
- Staff alerts
- 3
- False positives
- 0
Example data for illustration.
- Player_07 · SpeedPing spike 380 ms
- Player_12 · Reach3.92 blocks, steady ping
- Player_03 · FlyElytra plugin active
- Player_21 · KillAura38 rotations per second
- Player_09 · TimerServer TPS dropped to 14
- Player_15 · NoFallNo damage from 23 blocks
Get started
Protected in three steps
- 1
Sign in with Discord
No password. Your account is created on first login.
- 2
Get a key and link it
Get Pro or an add-on on our Discord, then link the key to your account in the dashboard.
- 3
Paste the key in the plugin
The plugin verifies the key and unlocks your plan's checks.
Pro
Active
License key
MYTH-••••-••••-••••-C9D2
Example card. Your real keys appear in your dashboard.
Pricing
Monthly plans. No commitment.
Free to start, Pro for everything. Pro is a monthly PayPal subscription you can cancel any time; Anti-XRay and Anti-ESP are add-ons for Free or Pro that you pay once and keep for ever.
Free
Install and play. No license key needed.
€0forever
Download freeAlso on: SpigotMC · BuiltByBit (MC-Market)
- No license key needed
- Basic movement checks: Speed, Flight/NoFall, Jesus
- Crash and BadPackets protection
- Alerts only: no setbacks, no punishments
- Add-ons available
- Community support
Pro
Every check and every feature of Mythras, for any server.
€19.99per month
Subscribe with PayPal- All checks: movement, combat, Crystal PvP, world and protocol
- Setbacks, automatic punishments, staff GUI, Discord webhook
- AI Learning + Mythras Cloud AI (global model)
- Replays kept for 7 days
- Whitelist and exemptions, combat mitigations, health filter
- Folia, cross-server alerts, developer API, PlaceholderAPI
- 1 server per key
- Add-ons available
- Priority support
- Monthly PayPal subscription, cancel any time
Anti-XRay
Ores out of sight are sent as rock, also those open to caves, until the player can see them.
€5.99one-time, forever
Pay with PayPal- Hides ores behind walls and in caves
- Pay once, yours forever
- Works with Free and Pro
- Height and blocks configurable
Anti-ESP
Players and containers behind walls are not sent: ESP, tracers, chams, radar and StorageESP see nothing.
€5.99one-time, forever
Pay with PayPal- Hides players behind walls (Anti-ESP)
- Hides chests and containers behind walls (Anti-StorageESP)
- Pay once, yours forever
- Works with Free and Pro
| Feature | Free (beta) | Pro |
|---|---|---|
| Price | free | 19,99 €/month (PayPal subscription) |
| License key | not needed (only to carry add-ons) | required |
| Servers per key | 1 (key with add-ons) | 1 |
| Movement checks | basic: Speed, Flight/NoFall, Jesus | complete, with Prediction |
| Combat checks | all: Reach, hitbox, KillAura, AutoClicker, Timer, Aim, NoSwing, Mace, WindCharge, Backtrack, AimBow, AutoPot, Crystal PvP (CrystalAura, AnchorAura, AutoTotem, AutoSwitch, Surround) | |
| World and protocol checks (FreeCam, Scaffold, FastPlace, FastBreak, BadPlace, BadBreak, Inventory, Protocol, Blink, X-Ray...) | Included | |
| Crash and BadPackets protection | Included | Included |
| Setbacks and automatic punishments, staff GUI, Discord webhook, customer panel | Included | |
| Replays (kept 7 days) | Included | |
| AI learning + Mythras Cloud AI (global model) | Included | |
| Whitelist and exemptions | Included | |
| Combat mitigations, health filter | Included | |
| Cross-server alerts (BungeeCord/Velocity), developer API, PlaceholderAPI, Folia | Included | |
| Anti-XRay (ores hidden, also in caves) | add-on | add-on |
| Anti-ESP and Anti-StorageESP (players and containers hidden behind walls) | add-on | add-on |
FAQ
Questions, answered
Something else? Ask us on Discord.
Do I need a password?
No. You sign up and log in only with Discord. Your account is created automatically the first time you sign in.
Do I need a key for the Free tier?
No. Install the plugin and it starts the Free plan (beta) right away: basic movement checks, Crash and BadPackets protection, alerts only. You only need a key for Pro or for an add-on.
Free version on: Modrinth · SpigotMC · BuiltByBit (MC-Market)
How long are replays kept?
Replays are included in Pro and are deleted automatically after 7 days.
Which servers does Mythras run on?
Paper or Spigot 1.21 or newer, and Folia with the Pro plan. You need Java 21+ and PacketEvents 2.14.0 or newer. Docs
What does AI Learning actually do?
It learns your server's normal behaviour, like lag patterns and plugin mechanics, and filters out flags that match it. Staff get fewer alerts, and the ones they get are real.
Can I upgrade later?
Yes. Contact support and we'll assign the higher tier. Each tier includes everything below it.
What happens when my month ends?
Your key stops working at the end of the month and the plugin goes back to Free. To keep your plan, open a ticket on our Discord server before it expires: we add one more month to the same key.
How does the plugin verify my license?
The plugin sends your key to our API and gets back whether it's valid and which tier it unlocks.
Which cookies do you use?
Only essential ones: your login session, form protection and your language choice. No tracking or advertising cookies. Cookie Policy
Your server deserves fair games.
Start with the Free tier today. Upgrade when you need replays and AI Learning.
Start with Discord