FS51
Luke

Compatibility layer for formspecs

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.

deploader
LuantistDork

Simple mod API that automates dependency-specific behaviour using a folder-heavy approach.

Timekeeper
sorcerykid

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

Echo
1F616EMO

In-game notification system

Star
Wiz

A* Pathfinding algorithm implementation

Mapsync
BuckarooBanzai

Synchronize the ingame map with a lua-backend

Compression Lib
The4spaceconstants

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

Face Objects
1F616EMO

Calculate the facing of objects

Extended Protection
1F616EMO

Extended interaction restriction rule

Openai Api
cora

Use AI systems using the openai API

Table Goodies
benrob0329

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

YAML Config File Library
snowyu

Load or Save YAML config file

Prop Hunt Modpack
Jo5629_

Transform into nodes and with a minigame.

Advanced Chat
LMD

A library for advanced chatting.

Advanced Breath and Health APIS
liteninglazer

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

imfs
Signal_

An immediate-mode, functional, reactive abstraction around Minetest's formspec system.

Position listeners library
karamel

Players' position observing library

Multiblock Lib
Mindcool25

Multiblock structure handler

typeof
TPH

Provides functionality similar to Luau's "typeof" function

node entity queue
fluxionary

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

Promise Stuff
jwmhjwmh

A promise library

Local Time and Date Api
Bob64

Provides an API for other mods to use to get a user's preferred date and time format/time zone based on their configured settings

Pluggable Helpers
sorcerykid

Automated dependency management of helper functions within a distributed architecture

Japanese Name
Logikí

transform your player name to japaNESE (joke)

Callbacks API
ANAND

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

Exploding Chest
Coder12

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

Lockbox
Jo5629_

Library for cryptography/encryption functions.

afk_api
fluxionary

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

Guider
1F616EMO

HUD markers for navigation

Cid Music Player
ekl

Plays music

name monoid
fluxionary

flexible control of a player's nametag

Interactive Item API
Jose_ManuelS18

Provides an API to make it easier to implement items' inner workings.

Minetest Systemd (API)
Piezo_

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

MQTT Client Library
Tuxilio

A mod for MQTT communication

group:any
1F616EMO

Item group applied to ALL items for crafting recipes.

ConfigFileLibrary
Tomlaus

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

Priority Queue
Wiz

Associate items with priorities to order them.

Wield Gadgets
1F616EMO

Register gadgets that can be used with a hotkey

Dialog Redo
1F616EMO

Flexable dialog API