rcsv
Wuzzy

RFC-4180-compliant CSV parser and writer

NodeCore Staybs API
Winter94

Movement parameters for various 'staybs'

toolcap_monoids
fluxionary

an API to allow multiple sources to apply changes to a tools's capabilities.

typeof
TPH

Provides functionality similar to Luau's "typeof" function

Advanced Breath and Health APIS
liteninglazer

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

Dialog Redo
1F616EMO

Flexable dialog API

Sway
lazerbeak12345

A simple inventory that makes use of Flow forms.

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.

VizLib
OgelGames

Visulization Library

Position listeners library
karamel

Players' position observing library

Table Goodies
benrob0329

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

Minetest Systemd (API)
Piezo_

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

SmartFS
rubenwardy

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

Database Manager
AFCM

Database Manager API

PostgreSQL Library
Tomlaus

Library for PostgreSQL Db.

MFSM Multiple Finite State Machine
Sumi

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

filter++ lib
rstcxk

provides an API for filtering text

YALib
hutzdog

Yet Another Library

Telegram
neko259

Integration with telegram messenger chat

Cid Music Player
ekl

Plays music

status effects
fluxionary

api for defining player status effects

Lockbox
Jo5629_

Library for cryptography/encryption functions.

Matrix Chat
joenas

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

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.

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.

Minebase Core
ThatCommand

Adds APIs and new dynamic functionalities.

Exploding Chest
Coder12

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

Tasks Framework
AntumDeluge

Framework for adding tasks & quests.

Virt
frogTheSecond

A library for (qemu) virtual machines

NameGen
cronvel

Name generator API.

name monoid
fluxionary

flexible control of a player's nametag

Advanced Rangefinder
sorcerykid

Extends the API with search capabilities for entities

Bedrock Markup Language
sorcerykid

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

imfs
Signal_

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

Chunk Version
Sumi

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

YL Ticker
AliasAlreadyTaken

Displays messages once per timeframe

balanced diet
fluxionary

api for specifying multiple dimensions to eating

Openai Api
cora

Use AI systems using the openai API

HTML to Luanti Hypertext
1F616EMO

Convert HTML to Luanti Hypertext for formspecs

Signs Redux
sorcerykid

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