Lexicon Logic Engine Mod automates the process of cycling librarian villager trades to find specific enchanted books. It works by repeatedly breaking and replacing the lectern workstation until the villager offers the exact enchantment, level, and price you choose. The mod functions on the client side, which means it works in singleplayer worlds, LAN games, multiplayer servers, and Realms.
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Features:
- Cycles librarian trades automatically until your desired enchantment appears.
- Tracks multiple target enchantments with custom price limits at the same time.
- Remains stable during various forms of server lag and network latency.
- Provides an in-game book menu to adjust all cycling speeds and behaviors.
- Works inside trading halls to cycle multiple villagers in a single row.
- Supports custom enchantment tags and plugin-provided enchantments.
Commands:
/librget add <enchantment> [level] [price]: adds an enchantment goal with optional level and price limits.
How to Use:
- Press , (comma) or use the command to add target enchantments to your goal list.
- Press K to open the configuration book menu and change any cycling settings.
- Stand near the target librarian villager and their lectern.
- Press J to start the automated trade cycling process.
- Press J again to stop cycling early, or let the cycle complete when your trade appears.
Screenshots:





Lexicon Logic Engine Mod Download Links
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on the file's original source — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Lexicon Logic Engine Mod (26.2, 1.20.1) – Automate Librarian Trades is a free Minecraft Java mod. Compatible with Minecraft 1.20.1. Download it and open it directly in the game.