Nexus API
by RaveTr
Nexus API is a library for mod developers that offers platform-agnostic utilities, networking and abstractions across Fabric, Forge and NeoForge.
What it does
Nexus API is a common library for mod developers working on Fabric, Forge and NeoForge. Its utilities cover many small tasks that otherwise repeat in every loader-specific project, and it supplies methods to retrieve information that differs between loaders, such as the environment side. Developers writing a multi-loader project can use one codebase against the shared interfaces instead of duplicating boilerplate for each platform.
The networking layer is platform-agnostic, so a developer writes packets and synchronizes data without handling the quirks of each loader's internal networking. Most of the expensive setup work runs during startup rather than during play, and the library adds only a negligible amount of startup time over a standard install. Fabric API is required on Fabric, and the mod is released under the BSD 3-Clause License as open source, with a source code repository, an issue tracker and a wiki. Files are published for 1.20.1 only on all three loaders.
Key features
Platform-agnostic utilities
A large set of helper classes covers common tasks, so loader-specific code can be kept to a minimum.
Simplified networking
Packets are sent and received through one interface, hiding differences between the loaders' networking systems.
Abstractions without forced conventions
The abstractions are optional, so a developer can use only the parts they need and keep their own project structure.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Who it’s for: Mod developers who build for more than one loader, or who want shared utilities for a mod on one loader. Players do not need the library to use mods that depend on it.
How it compares
Common Network is a platform-agnostic networking library under the MIT License, open source, with files for Fabric, Forge, NeoForge and Quilt across 1.16.5 – 26.3. MythLib is also open source under the MIT License, with a wider loader set but only 1.20.1 files. Modern Networking covers Fabric, Forge and NeoForge across 1.16 – 26.3 under the MIT License, and only networking is its purpose, while Nexus API adds general utilities on top.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Nexus API | Fabric, Forge and NeoForge | 1.20.1 | Client and server | 2026-08-28 |
| Common Network | Fabric, Forge, NeoForge and Quilt | 1.16.5 – 26.3 | Client and server | 2026-09-19 |
| MythLib | Fabric, Forge, NeoForge and Quilt | 1.20.1 | Client and server | 2023-10-21 |
| Modern Networking | Fabric, Forge and NeoForge | 1.16 – 26.3 | Client or server, optional | 2026-08-22 |
Questions
Does Nexus API need Fabric API?
Must Nexus API be installed on the server and the client?
Which game version does Nexus API support?
Does Nexus API require a specific loader ecosystem?
In the catalog
Nexus API is one of 3,514 Library mods on ModsFinder, and one of 2,348 Library mods for Fabric. 34,764 mods support Minecraft 1.20.1.
Similar mods
What the author says
Nexus is a library mod whose core purpose is to simplify the development process as much as possible while being efficient and optimized, particularly in Multiloader project setups. It introduces a fairly large collection of abstractions and other conveniences without forcing developers to adhere to conventions…
Official listing
- Modrinth page
- modrinth.com/mod/nexus-api
- Owner
- RaveTr
- Published
- 2025-09-17
- Updated on Modrinth
- 2026-08-28
- Facts verified
- 2026-10-15