Compatibility
Minecraft: Java Edition
1.21.11
Platforms
Tags
Creators
Details
Licensed Polyform Shield
Published 3 weeks ago
🪶 CapPreventer is the only updated AAE (anti-anti-exploit) free plugin on the market.
CapPreventer tries to block popular anti-exploit mods, so your server can see players' mods without any spoofers.
CapPreventer strives to be the top AntiSpoof Pro alternative. If you want to help me achieve that goal, you may report any cool findings for the plugin's development in my Discord DMs.
🏳🌈 Happy Pride Month!
🔍 Made for
| Mod(ule) | Operation | Versions |
|---|---|---|
| Server Spoof (optional impl.: Meteor Client, Opsec) | detects / breaks¹ | all |
| Opsec | breaks | <v1.1.5 (alone), new unpatched (requires any other mod; defaulted as Sodium) |
| exploitpatcher (ExploitPreventer ripoff) | breaks | all |
¹ Whether it breaks or detects is dependent on the module configuration. In OpSec, it always breaks.
📮 Outdated handling²
- Opsec v1.1.5 🔴 outdated [breaks]
- ExploitPreventer v1.0.5 x Server Translation API 🔴 outdated [breaks]
² These operations only work on outdated versions of the given mods.
🔑 Configuration
config.yml
# All flow operations:
# [ kick, ban, banip, commands ]
#==== Punishment Messages ====#
# | Command | Format |
# |-----------|-------------|
# | `kick` | MiniMessage |
# | `ban` | Legacy |
# | `banip` | Legacy |
#=============================#
#===== Command Placeholders =====#
# | Name | Description |
# |----------|------------------|
# | %player% | The player name. |
#================================#
# The 'px-integration' setting enables ProtocolExtension integration if it is present.
# If ProtocolExtension isn't present, that setting is ignored.
book-verification:
enabled: true
commands:
- opsec # [Patched]
- www
px-integration: true
max-register-limit:
enabled: true
amount: 60
# 'brand-spoof-detection' is a detection for Meteor's 'Server Spoof' > 'minecraft:brand' spoofing,
# 'brand-spoof-kicker' will cause an internal client error for undetected brand spoofers.
brand-spoof-detection: true
brand-spoof-kicker: true
# 'channel-spammer':
# - will spam the chat of players with channel loggers,
# - may also accidentally kick some players with mods that check all CustomPayloads,
# - may also accidentally spam game logs of some players
# (that use custom clients or these same types of mods).
channel-spammer:
enabled: false
interval: 10
# [Patched]
# 'ep-stapi-kicker' causes an internal client error if the player has both ExploitPreventer and a mod using
# Server Translations API installed.
ep-stapi-kicker:
enabled: true
translations:
- container.lolmcv.spruce_chest
- abc
- key.jump
- menu.quit
keybinds:
- key.jump
# 'opsec-alert-spammer' spams the player's chat if he has Opsec installed with alerts on (which is the default).
# Keep in mind though, this occupies the actionbar (therefore making it unusable)!
opsec-alert-spammer:
enabled: false
interval: 4
chunk: 2
# 'known-packs-require' requires the client to not omit the SelectKnownPacksC2SPacket and the 'minecraft:core' pack
# inside it.
#
# 'known-packs-analyze' analyzes if the client actually uses the version specified by SelectKnownPacksC2SPacket.
known-packs-require: true
known-packs-analyze: false
known-packs-analyze-amount: 20
# [ Requires Internet ]
# 'custom-lang-verification' can detect mods that don't check text from server resource packs.
# It's disabled by default because it doesn't seem to detect any popular mods.
custom-lang-verification: false
# 'chat-message-verification' requests the player to repeat a code in the chat,
# which doesn't display if the provided translations matches.
chat-message-verification:
enabled: true
translation:
enabled: false
value: xyz
alert-spam:
enabled: true
translation: sodium.options.buttons.apply
verification-messages:
begin: |-
&6This server requires additional verification.
&6Please wait a few seconds.
complete: |-
&8Verification complete.
invalid-flow:
kick:
active: true
message: |-
<red>Kicked for exceeding packet rate limit.
incorrect-code:
kick:
active: true
message: |-
<red>Failed verification
detected:
ban:
active: true
message: |-
ExploitPreventer usage
commands:
active: false
enum:
- /helpop %player% was banned for hiding mods.
hit-register-limit:
kick:
active: true
message: |-
<red>You have too many mods.
<red>Please consult a server administrator to increase this limit or remove some of the mods you don't need.
intentionally-faulting:
banip:
active: true
message: |-
Causing server issues
📦 Requirements
- Java >=21
- PaperMC >=1.21.11
🪧 Newest Protection
To have your server use the newest CapPreventer protection methods, remember to keep it updated.
I am trying my best to always find new exploits when old ones get patched.


