
AquaAdder
AquaAdder is a Paper plugin for adding custom items, custom block visuals, generated resource packs, and Blockbench models.

Requirements Paper 1.21x
Java 21
Copy the jar into your server plugins folder. Start the server once. Edit:
plugins/AquaAdder/config.yml
Restart the server or run:
/aqa reload
Resource Pack The plugin generates and serves its own resource pack.
Recommended config:
resource-pack:
enabled: true
host: "0.0.0.0"
port: 25665
public-host: "YOUR_SERVER_IP"
public-url: ""
required: true
Use host: "0.0.0.0" for binding the local HTTP server.
Use public-host for the IP or domain players connect to. Example:
public-host: "play.example.com" If you already host the pack somewhere else, use public-url:
public-url: "https://example.com/aquaadder-pack.zip" Rebuild and resend the pack:
/aqa pack
Commands
/aqa reload
/aqa pack
/aqa give <item> [amount]
/aqa summon <item>
/aquaadder also works.
Custom Items Add items in config.yml:
custom-items:
ruby_shard:
enabled: true
base-material: PAPER
custom-model-data: 10001
display-name: "<red>Ruby Shard"
texture: "textures/item/ruby_shard.png"
model: ""
Put textures in:
plugins/AquaAdder/textures/item/ruby_shard.png
The file name should match the item ID.
Blockbench Models Put item models here:
plugins/AquaAdder/blockbench/models/items/my_item.bbmodel
Put block models here:
plugins/AquaAdder/blockbench/models/blocks/my_block.bbmodel
On /aqa reload, AquaAdder creates config entries automatically:
Files in blockbench/models/items become custom items. Files in blockbench/models/blocks become custom items and custom blocks. Then run:
/aqa pack
Use them with:
/aqa give my_item
/aqa summon my_item
Custom Blocks Example:
custom-blocks:
example_block:
enabled: true
item: "AquaAdder:example_gem"
adapter: NOTE_BLOCK
note: 5
instrument: BASS_GUITAR
hardness: 1.0
required-tool: IRON_PICKAXE
Players place the block by right-clicking with the linked custom item.
Texture Troubleshooting If you see the generated fallback texture, the plugin did not find your PNG.
Check the server log for:
Missing texture for ... Put the texture in one of these folders:
plugins/AquaAdder/textures/item/<id>.png
plugins/AquaAdder/textures/items/<id>.png
plugins/AquaAdder/textures/<id>.png
plugins/AquaAdder/blockbench/items/<id>.png
plugins/AquaAdder/blockbench/textures/item/<id>.png
Then run:
/aqa reload
/aqa pack
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21, 1.21.1, 1.21.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as AquaAdder-1.1.jar — drop this file into the mods folder
- Download size: 87 KB
- Download link checked 24 Aug 2026 — working
These come from our own check of the pack file, not from the source page.