Cartographer
Hugues Ross

A mapmaking API. Needs additional mods to function.

API Nodestages
AliasAlreadyTaken

An API for nodestages, which convert into other nodes

Cave Generator
Noordstar

A custom cave generator engine

Unified API for in-game currency
1F616EMO

Unified API for currency management

Documentation System
Wuzzy

A simple in-game documentation system which enables mods to add help entries based on templates.

Moblib
LMD

Low-level high-performance entity library

Formspec Library
LMD

Formspec string builder & event handler callbacks

player attributes
fluxionary

API for defining abstract, compositional player attributes

Attributes Effects
SFENCE

Provides API for various effects over attributes of players/mobs

Splooshy Bombs API
ekl

API for block-flinging bombs

CoreAnim
SpacingBat3

Interpolated animation modpack, using Luanti 5.9+ API with backwards compatible syntax.

Basic Ownership
sorcerykid

An efficient and flexible node-based protection scheme for multiplayer worlds

Xmaps
erle

Adds map items that show terrain in HUD

Combine Slabs
X-DE

Allows you combine slabs

Mobs Effects
SFENCE

Provides predefined attribute effects without apply logic for mobs based on Mobs Redo API, modifying movement, combat, and behavior attributes

Giad
ekl

WIP Library for creating walking vehicles

persistent_monoids
fluxionary

player_monoids that persist between player sessions and server restarts/crashes.

Kill Log
Wuzzy

Allows mods to display the recent player kills, deaths and other game events

TPH's Notenodes
TPH

Provides musically charged nodes for playing music - unique instruments + options

Held Item Models & Animations API
TomCon

A powerful API adding in an easy system to integrate full 3d models when holding items.

Hitboxes Library
SFENCE

Provide functions for specify and recognize hit areas on entities/players.

Player Visibility Api
erov

Easily manage player visibility in a similar way to area protection

Object UUIDs
Silver Sandstone

Assigns a persistent UUID to every object.

Lockout
ApolloX

Late-stage Security for Servers

Journal
theFox

Do you want to add story to your game? Make your protagonist write notes into his Journal.

Item Help
Wuzzy

Adds automatically generated help texts for items.

TPH's Doors API Redo
TPH

(INTENDED FOR DEVELOPERS) Attempts to ease and better simplify door mechanics + registration

Mesecons Stealthnode
Clyde

Register your own Ghoststones.

monster_api_gb
Giga_M

add an api to create bosses

GetName
kevins

Adds an API and tool to generate random names for NPCs, mobs, and places.

Players Effects
SFENCE

Provides predefined attribute effects for players ncluding movement, vision, and brain concussion effects. Apply logic is not included.

Pillars
citorva

Add a lot of pillars for fun.

Keyevent
DS

Adds an event for when player presses a key.

Common Mob Interface
Byakuren

A standard modding interface for interacting with mobs

Events API
TPH

API for creating, handling, and permitting function registration calls for custom events

Sway
lazerbeak12345

A simple inventory that makes use of Flow forms.

ReSpec
ZenonSeth

Easy and Versatile Formspec Creation based on ConstraintLayout

Autobox
Just_Visiting

Auto Collision/Selection Loading Boxes

afk_api
fluxionary

an API for registering events which trigger when a player goes AFK or comes back from AFK.

Libox
frogTheSecond

A sandboxing library