AutoReply
by Rexen
AutoReply is a Fabric client mod that sends automatic replies to private messages, generating each answer through an integrated AI provider.
What it does
When another player sends a private message, AutoReply creates a reply with an AI model and sends it back without the player typing anything. The replies are shaped by the conversation so far, which lets them read as natural responses rather than fixed text. The mod supports several AI providers, and ChatGPT from OpenAI is among them, so the player signs in to an OpenAI account to use it.
The mod runs only on the client, so a player can install it on a single-player or multiplayer client while servers stay untouched. Setup is intended to be simple: the provider is chosen in the settings, and the key from that provider is entered there. Those keys come from the chosen provider and must be obtained beforehand, so the mod cannot answer messages until a provider is configured.
AutoReply is released under the BSD 3-Clause License and is not open source. The build is published for Fabric and Minecraft 1.21.1 only, with the 1.0.2 file dated 2026-09-01 on the beta channel.
Key features
AI-generated replies
Private messages receive replies generated by an AI model, produced without the player writing each answer by hand.
Contextual responses
The generated text takes the surrounding conversation into account, so replies respond to what was said.
Several AI providers
The provider can be chosen from the supported options, with ChatGPT from OpenAI as one of them.
Settings screen
Provider and key are set in one place, so the configuration stays short.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Away from keyboard
A player who steps away from the game can have private messages answered while the client keeps running.
Who it’s for: Players who want automatic answers to private messages, and who already have an account with a supported AI provider.
How it compares
Panda Reply is a server-side only Fabric mod for 1.21.11 – 26.3, open source under the CC0 1.0 Universal license. AI Chat is a client-side only Fabric mod for 1.21 – 1.21.11 under the MIT License and is not open source. ChatLogic is client-side only too, for 1.21 – 1.21.11, and is open source under the MIT License. AutoReply differs from all three in being limited to 1.21.1.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| AutoReply | Fabric | 1.21.1 | Client-side only | 2026-09-01 |
| Panda Reply | Fabric | 1.21.11 – 26.3 | Server-side only | 2026-10-04 |
| AI Chat | Fabric | 1.21 – 1.21.11 | Client-side only | 2025-12-09 |
| ChatLogic | Fabric | 1.21 – 1.21.11 | Client-side only | 2026-08-26 |
Questions
Does AutoReply need an API key?
Does AutoReply have to be installed on the server?
Which Minecraft versions does AutoReply support?
In the catalog
AutoReply is one of 5,392 Social mods on ModsFinder, and one of 4,084 Social mods for Fabric. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
Auto Reply is a Minecraft mod that automatically generates AI-powered responses to chat messages. Whether you're AFK, busy, or simply don't want to miss conversations, Auto Reply can respond naturally in both private messages and public chat.
Official listing
- Modrinth page
- modrinth.com/mod/autoreply
- Owner
- Rexen
- Published
- 2026-06-28
- Updated on Modrinth
- 2026-09-01
- Facts verified
- 2026-10-15