Minetest HTTP API QoS control queue
SX

Improve quality of important HTTP requests by grouping requests into service quality buckets.

Chatcommand Library
LMD

Library for registering chatcommands.

Trucraft
mt-mods

An alternative crafting system done entirely in the world.

DataMiner
sorcerykid

DataMiner is an analytical tool for server operators with a feature-rich API for customized report generation

Prop Hunt Modpack
Jo5629_

Transform into nodes and with a minigame.

action queues
fluxionary

provides an API for queuing things for batch processing w/ various ways to specify the batch "size".

Central Message
Wuzzy

Simple API to show messages to the center of the screen to players.

CentralAuth
1F616EMO

Player account unification across Luanti servers

NucleoTest
DarkXWolf17

Battle Royale-like game. Provides an API and a reference implementation. Highly radioactive. Work in progress.

Discrete Player API
Hypernoot

A library for games which attaches players to node grid

Template to Easily Make Fancy Voxelized Models
Noodlemire

Provides voxelmodel.obj, a model designed to be shaped by changing its texture, in order to easily create fancy voxelized models.

LCD Font
Nazalassa

A simple font for font_api

Minetest Systemd (API)
Piezo_

Debugging utility and compatibility tools for server owners and/or modpack creators

Phonics Library
Neuromancer

Provides a library for creating Phonics (Learn how to read) mods in different languages.

Player Settings
1F616EMO

Player-specific settings

Old Wizard Font
Pyrollo

OldWizard font for Font API

Gettime
1F616EMO

A api to get in-game hour/minute

anarchy
solsword

Anarchy PCG library (see https://cs.wellesley.edu/~pmwh/anarchy/lua/ w/ docs at https://cs.wellesley.edu/~pmwh/anarchy/lua/docs32/index.html)

Minetest Teams
pl608

simple multiplayer team system

Tasks Framework
AntumDeluge

Framework for adding tasks & quests.

Random Messages
1F616EMO

Register random announcements

Tips
1F616EMO

Send tips to newcomers

Face Objects
1F616EMO

Calculate the facing of objects

Lush
rstcxk

fully featured shell interpreter

Table Goodies
benrob0329

A small package for extra (can't live without) functions for working with tables.

Advanced Rangefinder
sorcerykid

Extends the API with search capabilities for entities

Natural Entities
LuantistDork

A lightweight API for spawning random entities

More Triggers
SkyBuilder1717

Adds more triggers for Awards

Weapons API
Stix

Adds an API to easily register custom weapons

SmartFS
rubenwardy

A library to allow mods to make Formspecs, a form of GUI, easily.

Advanced Forceload
Kimapr

a better forceloading API

rcsv
Wuzzy

RFC-4180-compliant CSV parser and writer

Register, Attach & Detach
mzel1982

Register glowing 3D items and custom display nodes that you can easily attach to players, place on walls, or showcase on pedestals.

Mapsync
BuckarooBanzai

Synchronize the ingame map with a lua-backend

Complete and Total Lua-Only Inventory Rewrite
Noodlemire

Creates a completely custom inventory system, which doesn't rely at all on any of the usual UserData objects.

CSMT Bots (Obsolete)
Logikí

Add bots to your game for training

Isogen
BuckarooBanzai

Generate isometric images from ingame builds

Japanese Name
Logikí

transform your player name to japaNESE (joke)

AoM Settings
Sumi

Provides methods for both player level and server level settings

node entity queue
fluxionary

a queue for spreading out the generation of node entities over multiple server steps (smartshops, signs, itemframes, etc).