JarvisAPI
by Lediago
JarvisAPI lets players speak voice commands in Minecraft, with offline speech recognition handling the input on the player's own computer.
What it does
Speech is turned into commands without an internet connection, using the offline Vosk recognizer. The recognizer is built for low CPU use, and Jarvis replies in the action bar, so responses appear without covering the chat or interrupting play. A spoken command changes the time, switches the game mode or runs a basic command at once.
The mod is aimed at players who want hands-free control while playing, and at anyone experimenting with voice input in a Fabric world. It is a Fabric mod for Minecraft 1.21.1 only, and both the server and every player need it, since the command runs on the server side. The latest file is 1.0.0-Beta for 1.21.1, published 2026-02-08 on the beta channel. The code is not open source, and it is distributed under All rights reserved.
Key features
Offline voice recognition
Speech is recognized locally with the Vosk engine, so no network connection is needed while speaking to Jarvis.
Time and game mode commands
Spoken phrases set the time to day, switch to Creative or switch to Survival, and take effect immediately.
Command list
A help command displays the list of commands Jarvis currently understands, so players can look up what to say.
Action bar feedback
Jarvis confirms each recognized command in the action bar, which keeps the chat free of messages.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Hands-free play
A player working on a build can change the time or switch game mode without leaving the keyboard and mouse.
Trying voice control
Anyone interested in speech input for a game can test how the offline recognizer handles spoken commands.
Who it’s for: Players who want to control the world by voice, and server owners who want voice commands available to everyone on their server. Because both sides run the mod, a player joining a server needs it installed as well.
How it compares
Voice Commands is a Fabric mod for 1.21.11 that runs only on the client and is released under the MIT License, so it needs no server install. Wikki Ai assitant is also client-side only and open source under the MIT License, but targets 1.21.10. JarvisAPI differs from both by requiring the client and server together, and by being closed under All rights reserved for 1.21.1.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| JarvisAPI | Fabric | 1.21.1 | Client and server | 2026-02-08 |
| Voice Commands | Fabric | 1.21.11 | Client-side only | 2026-09-25 |
| Wikki Ai assitant | Fabric | 1.21.10 | Client-side only | 2025-11-30 |
Questions
Does JarvisAPI need to be installed on the server?
Which Minecraft version does JarvisAPI support?
Does Jarvis need an internet connection?
In the catalog
JarvisAPI is one of 8,499 Technology mods on ModsFinder, and one of 4,201 Technology mods for Fabric. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
I'm happy because I've completed my dream project:) JarvisAPI is a voice-controlled assistant mod for Minecraft. Change the time, switch game modes, and execute basic commands instantly—just by speaking.
Official listing
- Modrinth page
- modrinth.com/mod/jarvisapi
- Owner
- Lediago
- Published
- 2026-02-08
- Updated on Modrinth
- 2026-02-08
- Facts verified
- 2026-10-15