Timekeeper
sorcerykid

Timekeeper acts as a centralized dispatcher for all time-sensitive routines

Luarocks Wrapper
lazerbeak12345

Securely Wrap Luarocks packages without needing trusted mods.

Cid Music Player
ekl

Plays music

Level API
Hypernoot

A library for games to load levels defined as schematics

Multiblock Lib
Mindcool25

Multiblock structure handler

Key Binding
1F616EMO

Register callbacks when a key is pressed, holded, or released.

FS51
Luke

Compatibility layer for formspecs

Weapons API
Stix

Adds an API to easily register custom weapons

Stopwatch
sorcerykid

Stopwatch is Lua-based benchmarking API for developers

IntelligenceFramework
PlamiumAI

Provide an AI RNN API for developers.

Prop Hunt Modpack
Jo5629_

Transform into nodes and with a minigame.

Echo
1F616EMO

In-game notification system

More vector helpers
Hybrid Dog

Adds more vector functions.

Smart Chat
Clyde

A new, lightweight, simple and modular Chatsystem

LCD Font
Nazalassa

A simple font for font_api

Player Settings
1F616EMO

Player-specific settings

Noriel Sylvire's Minerals Core Modpack
Noriel_Sylvire

An API for automatically registering recipes, nodes and ore generation.

Pluggable Helpers
sorcerykid

Automated dependency management of helper functions within a distributed architecture

Squill
Luke

A subset of SQL. No complex installation required.

verbana
fluxionary

verification and banning

Dialogs
1F616EMO

Dialogs with options

B.W Protection
Logikí

This gives API for bad words detection

flinv
Luke

API to add new inventory tabs which work across different inventory mods

Gettime
1F616EMO

A api to get in-game hour/minute

Babelfish Redo
1F616EMO

Translate chat messages into other languages

node entity queue
fluxionary

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

name monoid
fluxionary

flexible control of a player's nametag

Database Manager
AFCM

Database Manager API

BigNum
ThePython10110

A library that adds a data type for arbitrary precision integers

Lockbox
Jo5629_

Library for cryptography/encryption functions.

YALib
hutzdog

Yet Another Library

aSignals
Sumi

Signal event bus API including SIGNAL, LISTEN and CONDITIONAL functions

Advanced Chat
LMD

A library for advanced chatting.

Random API
TheFanne

Provides a simple-to-use framework for selecting random objects with probabilities

Callbacks API
ANAND

callbacks_api is a framework for registering callbacks if the callback registration function exists, else returns gracefully.

Minetest Teams
pl608

simple multiplayer team system

ConfigFileLibrary
Tomlaus

A library that allows loading and saving data from config files.

YL Ticker
AliasAlreadyTaken

Displays messages once per timeframe

SmartFS
rubenwardy

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

Tasks Framework
AntumDeluge

Framework for adding tasks & quests.