SynthCraft Live brings AI-powered music generation into your Minecraft world.

Describe the genre, mood, and lyrics you want — SynthCraft generates a full original song in seconds. Listen privately while you build or broadcast server-wide to replace Minecraft's ambient soundtrack with your own AI-generated music that every player hears.

Features

Text-to-Music — Type a prompt like "chill lo-fi hip hop for building at sunset" and get a full original song in 5–30 seconds
Lyrics Support — Add custom lyrics or leave it instrumental — the AI handles both
Private Listening — Play songs through your client only, without anyone else hearing
Server-Wide Broadcast — One player DJs for the whole server, replacing vanilla ambient music at equal volume for everyone regardless of location
Broadcast Queue — Queue your song when someone else is already broadcasting — it plays automatically when the current track ends
Now Playing HUD — Minimal playback bar with play/pause, progress, and volume; auto-hides after 5 seconds
Song Library — All your generated songs cached locally for instant replay, up to 50 per server
Vanilla Music Suppression — Active broadcasts seamlessly suppress Minecraft's ambient soundtrack; it resumes when the broadcast ends
Listener Controls — Mute broadcasts, adjust volume independently, or disable them entirely in Settings
Broadcast Permissions — Server owners control who can DJ: everyone, ops only, or a specific allowlist
Content Filter — Server-side word filter on prompts and lyrics, configurable or disableable
Public Song Feed — Optional API endpoint and embeddable widget showing recent songs on your website
Zero setup for players — Server owner installs the mod, gets an auto-provisioned free trial with no signup required

How It Works

Press , (comma) to open the SynthCraft menu. Choose a genre, describe the mood, optionally write lyrics, pick a duration (15s–180s), and hit Generate. The song is created in the cloud while you keep playing — a chat notification lets you know when it's ready. Play it privately or broadcast it to the entire server.

Requirements

Minecraft 1.20.1 through 1.21.11 (Fabric)
Multiplayer only — requires the mod installed on both client and server
Fabric API
Java 21+

Server Administration

Server owners can configure SynthCraft via config/synthcraft/server.json:

broadcastPermission — Control who can broadcast: "everyone", "ops", or "allowlist"
maxSongDurationSeconds — Cap generation length (default: 120s)
maxQueueSize — Limit the broadcast queue (default: 10)
contentFilterEnabled — Toggle the prompt/lyrics word filter
publicFeedEnabled — Expose a public song activity feed for website embeds

Admin commands (op level 3):

/synthcraft activate code
/synthcraft reload
/synthcraft stopall
/synthcraft status

Licensing

SynthCraft works out of the box with a free trial — no registration needed. After the trial, server owners can subscribe for unlimited music generation. One license per server.