AirClient
by pauljako_
AirClient is a client-side Fabric utility for Minecraft Java Edition that adds capes, name prefixes and a few cosmetic options for the local player.
What it does
AirClient is an open source Minecraft client, released under the GNU Lesser General Public License v3.0 or later, and only the player's client needs it. Servers do not have to install it, and a single-player world runs it with no changes on the server side. The mod depends on Fabric API and Fabric Language Kotlin, both of which must be installed next to it.
The mod covers animated capes, a selection screen for choosing them, a player name prefix option and a color coding reference for chat. Cosmetics can also be shared with other players through a websocket server, and capes can be served from an HTTP server. Files are published for Fabric only, for four release versions 1.21.7 – 1.21.11, with 0.7.1 for 1.21.11 as the latest file.
Key features
Animated capes
Capes can play as an animation rather than a single still image, shown on the local player.
Cape selection screen
A screen lets the player pick which cape to wear from the available options.
Deadmau5 ears
An optional pair of ears in the style of the Deadmau5 cosmetic can be added to the player model.
Shared cosmetics
Cosmetics can be exchanged with other players through a websocket server, so friends can see the same capes.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Use cases
Cosmetic setups on a client
A player who wants custom capes and name prefixes in a single-player or multiplayer session can add them locally.
Hosting a cape server
A group that runs its own cape distribution can serve capes from the included HTTP server.
Who it’s for: Players who want client-only cosmetics and people who host a shared cape service for a small group.
How it compares
Mc cape is a Fabric client mod for 1.21.4 – 1.21.11 under All rights reserved, so its source is not open. Client Capes is open source under the GNU General Public License v3.0 only, covering 1.20.1 – 1.21.7. ONClient is a Fabric client mod for 1.21.11 only, under All rights reserved and not open source. AirClient differs from each of them in being open source under the GNU Lesser General Public License v3.0 or later and in targeting 1.21.7 – 1.21.11.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| AirClient | Fabric | 1.21.7 – 1.21.11 | Client-side only | 2025-12-14 |
| Mc cape | Fabric | 1.21.4 – 1.21.11 | Client-side only | 2026-07-12 |
| Client Capes | Fabric | 1.20.1 – 1.21.7 | Client-side only | 2025-07-06 |
| ONClient | Fabric | 1.21.11 | Client-side only | 2026-05-17 |
Questions
Does AirClient need Fabric API?
Do servers need AirClient installed?
Which game versions does AirClient support?
In the catalog
AirClient is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 19,862 mods support Minecraft 1.21.11.
Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/airclient
- Owner
- pauljako_
- Published
- 2025-07-16
- Updated on Modrinth
- 2025-12-14
- Facts verified
- 2026-10-15