Modding Library
LMD

Multipurpose Minetest Modding Library

Chat Command Builder
rubenwardy

A library to make registering chat commands easier

Ediblestuff API
lazerbeak12345

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

Power Rangers Modpack
LC Creations

Adds power rangers and an API to create your own.

Tubelib2
joe7575

A library for mods which need connecting tubes / pipes / cables or similar.

Mapblock Lib
BuckarooBanzai

mapblock serialization functions

SzUtilPack
Warr1024

A collection of misc dependency-free utilities primarily for server hosts

Moblib
LMD

Low-level high-performance entity library

Appliances API
SFENCE

API for create appliances in other mods powered by technic, mesecons or hand.

Oreveins
ApolloX

A node which produces ores

Epic
BuckarooBanzai

Enhanced Programmer for Ingame Control

Meshport (Luanti Mesh Exporter)
random_geek

Easily export areas in Luanti to meshes for 3D rendering.

Advanced Chat
LMD

A library for advanced chatting.

More vector helpers
Hybrid Dog

Adds more vector functions.

SSCSM implementation
Luke

A server-sent CSM library.

Formspec AST
Luke

A library to help other mods interpret formspecs.

Cartographer
Hugues Ross

A mapmaking API. Needs additional mods to function.

Advanced Trains
orwell

Adds good-looking, realistic trains with realistic rails.

Exploding Chest
Coder12

Api-mod to allow containers like chest to explode if it contains explosive materials.