imfs
Signal_

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

Advanced Rangefinder
sorcerykid

Extends the API with search capabilities for entities

Extended Protection
1F616EMO

Extended interaction restriction rule

Natural Entities
LuantistDork

A lightweight API for spawning random entities

Phonics Library
Neuromancer

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

Matrix Chat
joenas

This mod creates a bridge between a Matrix channel and the in-game chat!

Select Item
Wuzzy

Allows other mods to add a simple form to choose a single item.

Japanese Name
Logikí

transform your player name to japaNESE (joke)

Prop Hunt Modpack
Jo5629_

Transform into nodes and with a minigame.

Debugging Console
sorcerykid

Provides an in-game HUD to easily monitor debug output

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.

CentralAuth
1F616EMO

Player account unification across Luanti servers

Lockbox
Jo5629_

Library for cryptography/encryption functions.

aSignals
Sumi

Signal event bus API including SIGNAL, LISTEN and CONDITIONAL functions

group:any
1F616EMO

Item group applied to ALL items for crafting recipes.

Chunk Version
Sumi

Stores the numerical version a chunk was generated, so that other mods may query this.

DataMiner
sorcerykid

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

Pedestals Api
mzel1982

Register your own mesh pedestals.

Nametags2
Logikí

Allow objects had nametags with observers, colors and range

node entity queue
fluxionary

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

Minebase Core
ThatCommand

Adds APIs and new dynamic functionalities.

YAML Config File Library
snowyu

Load or Save YAML config file

Tips
1F616EMO

Send tips to newcomers

GroupLib
rudzik8

General grouping API

Timekeeper
sorcerykid

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

Wield Events
mt-mods

Events for wield item switching

Dialog Redo
1F616EMO

Flexable dialog API

craftsystem
fluxionary

craft registration API which automatically deals w/ replacements

Pluggable Helpers
sorcerykid

Automated dependency management of helper functions within a distributed architecture

Sway
lazerbeak12345

A simple inventory that makes use of Flow forms.

ConfigFileLibrary
Tomlaus

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

Bedrock Markup Language
sorcerykid

Bedrock Markup Language is an extensible markup language and API for formspecs.

AoM Settings
Sumi

Provides methods for both player level and server level settings

Multiblock Lib
Mindcool25

Multiblock structure handler

Stopwatch
sorcerykid

Stopwatch is Lua-based benchmarking API for developers

Key Binding
1F616EMO

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

Luarocks Wrapper
lazerbeak12345

Securely Wrap Luarocks packages without needing trusted mods.

Advanced Chat
LMD

A library for advanced chatting.

Chat Games API
Impulse

An API to build chatgames like those in the chatgames

Minetest Teams
pl608

simple multiplayer team system