Minetest Object IDs (API)
zeuner

Persistent object-IDs for developers

Chest with Everything
ROllerozxa

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

Cave Generator
Noordstar

A custom cave generator engine

More Triggers
SkyBuilder1717

Adds more triggers for Awards

WorldEdit Wall Block
SkyBuilder1717

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

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.

Debugging Console
sorcerykid

Provides an in-game HUD to easily monitor debug output

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.

Meseconometer
DS

Device to meassure time of mesecon signals in globalsteps

action queues
fluxionary

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

Simple Models
AntumDeluge

Very simple models.

Get Item
Wuzzy

Allows you to get all items

MineTest FileManager (MTFM)
Zemtzov7

Formspec-based file manager with text editor and image viewer

Barrier
erov

Barriers with optional placement restrictions.

Sway
lazerbeak12345

A simple inventory that makes use of Flow forms.

Scripted World Editor
Neuromancer

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

PerfHUD
Juri

Adds an HUD which shows some performance stats.

Kits
Pyu

An API for creating kits

Ediblestuff API
lazerbeak12345

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

Advanced Rangefinder
sorcerykid

Extends the Minetest API with search capabilities for entities

L-System Tree Utility
Wuzzy

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

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.

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.

Playerhealth
Simon

fill your hearts (HP)

Modding Commands
DragonWrangler

Adds Hopefully helpful commands for modding

Grimoire
monk

Override tool functionality during runtime

Noriel Sylvire's Minerals Core Modpack
Noriel_Sylvire

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

Chromakey
SkyBuilder1717

Adds an chroma blocks for videos or photoshop.

Tasks Framework
AntumDeluge

Framework for adding tasks & quests.

Superpickaxe
Hybrid Dog

A tool to remove any pointable node and reveal debug information

Lush
rstcxk

fully featured shell interpreter

Get Biome Data
ROllerozxa

Get biome data from core.get_biome_data

Lua Button
Zemtzov7

Button that executes custom lua code on rightclick

Stopwatch
sorcerykid

Stopwatch is Lua-based benchmarking API for Minetest developers

Key Combos
epCode

A lib for adding actions when certain keys are pressed in order.

List Items Chat Command
AntumDeluge

Chat command that lists registered items & entities.

typeof
TPH

Provides functionality similar to Luau's "typeof" function

/giveme itemname completion
Hybrid Dog

Autocompletion of item names for the /giveme chat command

Riddance
Blockhead

Hide or rid yourself of unnecessary items from games and mods without any code

Library Mount
Panquesito7

API Framework for mounting objects.