ReSpec
ZenonSeth

Easy and Versatile Formspec Creation based on ConstraintLayout

Item Help
Wuzzy

Adds automatically generated help texts for items.

Simple Models
AntumDeluge

Very simple models.

Mesecons Stealthnode
Clyde

Register your own Ghoststones.

persistent_monoids
fluxionary

player_monoids that persist between player sessions and server restarts/crashes.

NodeCore Crystals
Winter94

Adds various crystal types to Nodecore

Entity Control Function Library
Noodlemire

Adds functions to override and unregister entities.

flinv
Luke

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

Players Effects
SFENCE

Provides predefined attribute effects for players ncluding movement, vision, and brain concussion effects. Apply logic is not included.

Keyevent
DS

Adds an event for when player presses a key.

TPH's Doors API Redo
TPH

(INTENDED FOR DEVELOPERS) Attempts to ease and better simplify door mechanics + registration

Minetest HTTP API QoS control queue
SX

Improve quality of important HTTP requests by grouping requests into service quality buckets.

Nodecore Mod Resource Library
Winter94

Resources to be used for NC Content

hand_monoid
fluxionary

player monoid for controlling the look and abilities of the player's hand.

The Mob API
TX_Miner

Provides a simple API for mobs

Template to Easily Make Fancy Voxelized Models
Noodlemire

Provides voxelmodel.obj, a model designed to be shaped by changing its texture, in order to easily create fancy voxelized models.

Minetest Systemd (API)
Piezo_

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

Doclib
joe7575

A library to generate ingame manuals based on markdown files.

Mobs Effects
SFENCE

Provides predefined attribute effects without apply logic for mobs based on Mobs Redo API, modifying movement, combat, and behavior attributes

NodeCore Staybs API
Winter94

Movement parameters for various 'staybs'

Inventory Change Callback
luarocks

Provide a global callback for handling player inventory changes.

Archipelago Library
Warr1024

Archipelago multi-world randomizer integration library

status effects
fluxionary

api for defining player status effects

Minetest Teams
pl608

simple multiplayer team system

Tasks Framework
AntumDeluge

Framework for adding tasks & quests.

Chatcommand Library
LMD

Library for registering chatcommands.

Function Delayer
Hybrid Dog

Allows executing functions after a delay to reduce possible lag (EDD scheduler?)

YAML Config File Library
snowyu

Load or Save YAML config file

Unified Stamina API
TestificateMods

Provides a universal API for handling different mods that provide a stamina bar

Vision Lib
mt-mods

Common library for PolySaken's mods.

Node Damage
Noodlemire

Enables nodes to be partially damaged, and to be repaired afterwards.

Table Goodies
benrob0329

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

action queues
fluxionary

provides an API for queuing things for batch processing w/ various ways to specify the batch "size".

Persistent Effects
epCode

An API for creating persistent effects for any object. eg. damage a player or entity over time. (like poison)

Archaeology
SkyBuilder1717

Adds an looting and API in archaeologing

Weapons API
Stix

Adds an API to easily register custom weapons

SmartFS
rubenwardy

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

Fbt Core
Forburnt

A set of utils for other fbt_* mods

Cid Music Player
ekl

Plays music

CSMT Bots (Obsolete)
Logikí

Add bots to your game for training