CSMT Bots (Obsolete)
Logikí

Add bots to your game for training

balanced diet
fluxionary

api for specifying multiple dimensions to eating

Autobox
Just_Visiting

Auto Collision/Selection Loading Boxes

Mobs Effects
SFENCE

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

Pedestals Api
mzel1982

Register your own mesh pedestals.

Advanced Fight Library
SFENCE

Library for implementing advanced combat systems with hitbox-based damage and body part health tracking

Quest Framework
TeTpaAka

Simple framework to define quests.

Hitboxes Library
SFENCE

Provide functions for specify and recognize hit areas on entities/players.

VizLib
OgelGames

Visulization Library

Advanced Breath and Health APIS
liteninglazer

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

NodeCore Crystals
Winter94

Adds various crystal types to Nodecore

Library Mount
Panquesito7

API Framework for mounting objects.

Item Holders
Jose_ManuelS18

Adds 'Item Holders', blocks that hold your items in display, also provides a API.

NodeCore Staybs API
Winter94

Movement parameters for various 'staybs'

Entity Control Function Library
Noodlemire

Adds functions to override and unregister entities.

Sway
lazerbeak12345

A simple inventory that makes use of Flow forms.

Noriel Sylvire's Minerals Core Modpack
Noriel_Sylvire

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

Ediblestuff API
lazerbeak12345

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

Interactive Item API
Jose_ManuelS18

Provides an API to make it easier to implement items' inner workings.

Scripted World Editor
Neuromancer

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

hand_monoid
fluxionary

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

LCD Font
Nazalassa

A simple font for font_api

Player Settings
1F616EMO

Player-specific settings

Fbt Core
Forburnt

A set of utils for other fbt_* mods

AFK Indicator
1F616EMO

API to check player AFK status

Archaeology
SkyBuilder1717

Adds an looting and API in archaeologing

Loot
Byakuren

A loot framework.

Seasons Clock
solsword

API for getting various "season" parameters based on server time and a few customiable settings. Doesn't change gameplay; just a library that other mods can use to do seasonal things.

Job Control Mod
sorcerykid

A more flexible alternative to the builtin minetest.after function

SmartFS
rubenwardy

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

Level API
Hypernoot

A library for games to load levels defined as schematics

Isogen
BuckarooBanzai

Generate isometric images from ingame builds

Japanese Name
Logikí

transform your player name to japaNESE (joke)

Persistent Effects
epCode

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

Antigrief
sorcerykid

An API for validating node and item placement via a simple callback mechanism.

Advanced Forceload
Kimapr

a better forceloading API

Trucraft
mt-mods

An alternative crafting system done entirely in the world.

Signs Redux
sorcerykid

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

Discrete Player API
Hypernoot

A library for games which attaches players to node grid

Select Item
Wuzzy

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