Ingame Editor for Yourland Speak up mod
Sokomine

Edit ingame what NPCs say without server restart

Worldedit Big Schematics Handling
IRI

World Edit commands allowing to create and place large schematics, as well as maintain a command journal for undoing past actions.

K WorldEdit Command Builder GUI
ketwaroo

Alternate worldedit frontend to build and run commands that is agnostic of inventory.

Minetest Object IDs (API)
zeuner

Persistent object-IDs for developers

Cave Generator
Noordstar

A custom cave generator engine

WorldEdit Wall Block
SkyBuilder1717

Adds block and item for making big structures easily as possible.

Chest with Everything
ROllerozxa

Adds a chest node containing all registered nodes, items and tools.

Superpickaxe
Hybrid Dog

A tool to remove any pointable node and reveal debug information

Lush
rstcxk

fully featured shell interpreter

Ediblestuff API
lazerbeak12345

A unified API for making items, tools and armor edible. Eat armor while wearing it!

Meseconometer
DS

Device to meassure time of mesecon signals in globalsteps

Scripted World Editor
Neuromancer

API that allows you pass in scripting tables to fill a series of shapes of different sizes with different nodes

Simple Models
AntumDeluge

Very simple models.

PerfHUD
Juri

Adds an HUD which shows some performance stats.

Library Mount
Panquesito7

API Framework for mounting objects.

More Triggers
SkyBuilder1717

Adds more triggers for Awards

Get Item
Wuzzy

Allows you to get all items

Barrier
erov

Barriers with optional placement restrictions.

Node entity library
The4spaceconstants

Library for functional node entities.

Tasks Framework
AntumDeluge

Framework for adding tasks & quests.

Too Many Aliases
ThePython10110

Adds aliases to every item/node in MineClone to make them match MineCraft so you can stop forgetting that mcl_mobitems:ender_pearl should be mcl_throwing:ender_pearl.

L-System Tree Utility
Wuzzy

A form to easily spawn L-system trees, aimed at mod developers.

Quest Framework
TeTpaAka

Simple framework to define quests.

Lua Button
Zemtzov7

Button that executes custom lua code on rightclick

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.

Noriel Sylvire's Minerals Core Modpack
Noriel_Sylvire

An API for automatically registering recipes, nodes and ore generation.

action queues
fluxionary

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

Goxel Tools
MisterE

Allows using goxel to create Luanti builds. Saves a palette of node colors for import into Goxel and allows importing Goxel models made using said palette.

MineTest FileManager (MTFM)
Zemtzov7

Formspec-based file manager with text editor and image viewer

Minebase Core
ThatCommand

Adds APIs and new dynamic functionalities.

Advanced Rangefinder
sorcerykid

Extends the Minetest API with search capabilities for entities

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.

List Items Chat Command
AntumDeluge

Chat command that lists registered items & entities.

Sway
lazerbeak12345

A simple inventory that makes use of Flow forms.

Kits
Pyu

An API for creating kits

Oddly Sized Checkerboard Testnodes 2
erle

Adds oddly sized checkerboard test nodes.

Debugging Console
sorcerykid

Provides an in-game HUD to easily monitor debug output

Playerhealth
Simon

fill your hearts (HP)

Grimoire
monk

Override tool functionality during runtime

Chromakey
SkyBuilder1717

Adds an chroma blocks for videos or photoshop.