NucleoTest
LissoBone

Battle Royale-like game. Provides an API and a reference implementation. Highly radioactive. Work in progress.

Position listeners library
karamel

Players' position observing library

Matrix Chat
joenas

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

Random API
TheFanne

Provides a simple-to-use framework for selecting random objects with probabilities

Stopwatch
sorcerykid

Stopwatch is Lua-based benchmarking API for Minetest developers

Telegram
neko259

Integration with telegram messenger chat

Light Tool
Extex

Adds a tool and api that creates beams of light

AFK Indicator
1F616EMO

API to check player AFK status

Definition Ripper
Warr1024

Generate inert facades from node/item definitions for use in other games

group:any
1F616EMO

Item group applied to ALL items for crafting recipes.

name monoid
fluxionary

player monoid for controlling the nametag

Smart Vector Table
Noodlemire

API that adds a way to create tables indexed by 3D Vectors.

Minetest test framework
BuckarooBanzai

Provides an api to register test functions for integration-tests.

Gettime
1F616EMO

A api to get in-game hour/minute

Subcommands
1F616EMO

API to make commands with subcommands

Cycles
1F616EMO

API to cycle though block/item state on certan events

YALib
hutzdog

Yet Another Library

Advanced Chat
LMD

A library for advanced chatting.

Minetest HTTP API QoS control queue
SX

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

Newspaper
1F616EMO

A Customizable newspaper

Callbacks API
ANAND

callbacks_api is a framework for registering callbacks if the callback registration function exists, else returns gracefully.

Node Object
jwmhjwmh

A library for associating objects with nodes

Database Manager
AFCM

Database Manager API

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.

Promise Stuff
jwmhjwmh

A promise library

node entity queue
fluxionary

a queue for spreading out the generation of node entities over multiple server steps (smartshops, signs, itemframes, etc).

Lambda
benrob0329

Atomic lambda string-parser for Lua.

Old Wizard Font
Pyrollo

OldWizard font minetest mod for font API

verbana
fluxionary

verification and banning

canonical name
fluxionary

api to get the proper capitalization of a name

SSCSM implementation
luk3yx

A server-sent CSM library.

Benchmark Engine
theFox

Engine for running benchmarks ingame.

Oreveins
ApolloX

A node which produces ores

World Data Manager Library
AntumDeluge

A library for managing data files in the world directory.

Walkover
lordfingle

A library to make it easier for developers to detect on_walk_over