Prop Hunt Modpack
Jo5629_

Transform into nodes and with a minigame.

Advanced Breath and Health APIS
liteninglazer

Creates APIS to allow different players to heal health and allow different players to breathe different items.

MFSM Multiple Finite State Machine
Sumi

Allows for multple states to be active, while maintaining typical state machine behavior. Good for gamestate and mobs.

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)

Metatable Metamethods Fixes + Customization
TPH

Attempts to fix issues with metamethods for Lua 5.1 as well as adding new ones + custom functions

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.

Simple notification wrapper
KirowL

This project offers a Notification System API to display temporary messages on the player's screen, allowing seamless integration of notifications into gameplay.

Pluggable Helpers
sorcerykid

Automated dependency management of helper functions within a distributed architecture

MQTT Client Library
Tuxilio

A mod for MQTT communication

Random Messages
1F616EMO

Register random announcements

status effects
fluxionary

api for defining player status effects

Phonics Library
Neuromancer

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

Natural Entities
LuantistDork

A lightweight API for spawning random entities

Openai Api
cora

Use AI systems using the openai API

Pedestals Api
mzel1982

Register your own mesh pedestals.

item_monoids
fluxionary

an API for controlling item properties via monoids

Telegram
neko259

Integration with telegram messenger chat

name monoid
fluxionary

flexible control of a player's nametag

Compression Lib
The4spaceconstants

A library that provides functions to procedurally register compressed versions of nodes.

Stent
AFCM

A formspec based arena entrance type for arena_lib

Multiblock Lib
Mindcool25

Multiblock structure handler

Database Manager
AFCM

Database Manager API

Operating System Detector
TPH

Checks the OS of the device running the mod.

Guider
1F616EMO

HUD markers for navigation

YL Ticker
AliasAlreadyTaken

Displays messages once per timeframe

afk_api
fluxionary

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

Minetest Systemd (API)
Piezo_

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

Tips
1F616EMO

Send tips to newcomers

DataMiner
sorcerykid

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

Timed World Modifiers library
karamel

Environmental ABM that could be triggered on a very wide range of nodes but only a few at a time.

FS51
Luke

Compatibility layer for formspecs

canonical name
fluxionary

api to get the proper capitalization of a name

Cid Music Player
ekl

Plays music

Table Goodies
benrob0329

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

Smart Vector Table
Noodlemire

API that adds a way to create tables indexed by 3D Vectors.

Signs Redux
sorcerykid

Signs Redux is a complete rewrite of default signs that adds many new features

Callbacks API
ANAND

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

Timekeeper
sorcerykid

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

Gettime
1F616EMO

A api to get in-game hour/minute

Exploding Chest
Coder12

Api-mod to allow containers like chest to explode if it contains explosive materials.