
MonolithAPI
Java mod listed for Minecraft 1.18–26.x. Downloads from the MC Java Mods app on Android.
⬇ Download on ModrinthMonolith API
A modern API for creating custom blocks on Paper servers.
Simple • Type-safe • Java compatible • Extensible
Overview
Monolith API is a framework for creating custom blocks on Paper servers.
Instead of replacing vanilla mechanics or requiring a resource pack, Monolith allows plugins to register new logical block types based on vanilla materials while providing completely custom behavior.
Every custom block can react to events, be converted to and from an item, be placed into the world and retrieved later through the API.
The library is written in Kotlin but designed to be equally comfortable for Java developers.
🧭 Navigation
Explore the comprehensive documentation to master the API:
1. Getting Started
- Introduction & Features — Core philosophy and key capabilities.
- Installation Guide — Setting up Maven, Gradle, and
plugin.yml. - API Entry Point — How to access the API in Java and Kotlin.
2. Core Concepts
- Defining Custom Blocks — Creating your first
BlockDefinition. - Registration Lifecycle — Using
MonolithRegisterEventcorrectly. - Items — Converting blocks to
ItemStacks.
3. Advanced Mechanics
- Event System & Behaviors — Understanding global vs. local event dispatch.
- Persistent Data (DataContainer) — Saving custom state to blocks.
- Custom Data Types — Serializing complex objects.
- Vec3i — Advanced coordinate math and proximity checks.
4. World Management
- PlacedBlock API — Accessing blocks already in the world.
- Placement & Destruction — Programmatic world manipulation.
- Built-in Commands
Installation
plugin.yml
depend:
- MonolithAPI
Maven
<dependency>
<groupId>io.github.zawarka03</groupId>
<artifactId>monolith-api</artifactId>
<version>VERSION</version>
<scope>provided</scope>
</dependency>
Gradle
dependencies {
compileOnly("io.github.zawarka03:monolith-api:VERSION")
}
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.18, 1.18.1, 1.18.2
- 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 monolith-api-0.1.1.jar — drop this file into the mods folder
- Download size: 1.9 MB
- Download link checked 15 Oct 2026 — working
These come from our own check of the pack file, not from the source page.