ChatLogic
ChatLogic reacts to incoming chat messages on Fabric by sending configured replies or commands when a rule's text matches.
What it does
Each rule is a trigger that watches incoming chat and system messages for custom match text. When a match occurs, ChatLogic waits for a randomized delay between configurable minimum and maximum values, then sends one response picked from a list of possible replies. A response that starts with ChatLogic sends a command, and any other response is sent as a normal chat message.
Individual triggers can be enabled or disabled without deleting them. Settings saved by earlier releases carry over to the newer format when the mod loads. The settings screen opens in-game and can be reached through Mod Menu, when that optional mod is installed, or from the Pause Menu.
The mod is client-side only, so only the player's own client needs it and servers do not. It requires Fabric API and is released under the MIT License as open source. Files cover 1.21 – 1.21.11, with 1.1.1-beta for 1.21.11 as the latest Fabric build, published on the beta channel.
Key features
Match-based triggers
A trigger fires when incoming chat or system text contains the custom match phrase set for it.
Multiple responses
Each trigger can hold several possible replies, and one is chosen at random each time it fires.
Randomized delays
Minimum and maximum delay values can be set so replies do not appear instantly after a match.
Command responses
A response beginning with ChatLogic sends a slash command instead of a chat message.
Per-trigger toggles
Each trigger has its own enable or disable control in the configuration screen.
Compatibility
Latest build for each game version and loader.
1.21.x12 of 12 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Optional 1
How it compares
ChatReply is also client-side only and released under the MIT License for Fabric 1.21 – 1.21.11, but it is not open source. AntiAd is client-side only under the MIT License for the same range, and it is not open source. Blocketing is server-side only and open source under the MIT License, covering 1.21.5 – 1.21.10, so it runs on the server rather than in the player's client.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| ChatLogic | Fabric | 1.21 – 1.21.11 | Client-side only | 2026-08-26 |
| ChatReply | Fabric | 1.21 – 1.21.11 | Client-side only | 2026-07-02 |
| AntiAd | Fabric | 1.21 – 1.21.11 | Client-side only | 2026-02-14 |
| Blocketing | Fabric | 1.21.5 – 1.21.10 | Server-side only | 2025-10-25 |
Questions
Does ChatLogic need Fabric API?
Do servers need ChatLogic installed?
How are old settings handled after an update?
In the catalog
ChatLogic is one of 5,392 Social mods on ModsFinder, and one of 4,084 Social mods for Fabric. 19,862 mods support Minecraft 1.21.11.
Similar mods
What the author says
ChatLogic is a client-side Fabric mod that automatically responds to incoming chat and game messages using configurable triggers. If a response starts with /, ChatLogic sends it as a command. Otherwise, it sends it as a normal chat message.
Official listing
- Modrinth page
- modrinth.com/mod/chatlogic
- Owner
- WhereDidMyDivGo
- Published
- 2026-01-27
- Updated on Modrinth
- 2026-08-26
- Facts verified
- 2026-10-15