ModsFinder

IPConnection

by zxNoragami

IPConnection is a client-side Fabric mod that lets a player switch from one server to another through local commands, without sending a command to the current server.

FabricClient-side onlyMIT LicenseOpen source1.21.4

What it does

The mod takes over the client's connection logic, so a player can leave the current server and join a different address in one step. Disconnecting from the active world happens cleanly before the new connection opens, and automatic reconnection is handled by the client rather than by any server-side command. Because nothing is sent to the server being left, switching does not produce network errors, desynchronization or forced game closures.

The author describes the mod for players who often move between servers, and for developers, testers and operators of multi-instance networks who need precise control over how a connection flows through its screens and states. Its focus is stability and clean transitions, and it is described as lightweight and performance-friendly. The mod runs with Fabric on modern Minecraft versions and has no counterpart on the server side.

The current release is 1.0.0 for 1.21.4, published on 2026-02-05, the same day the project was first released. The code is open source under the MIT License, and the project has a source repository, an issue tracker and a wiki.

Key features

  1. Local server switching

    Switches to another server from the client, using local commands rather than anything sent to the server being left.

  2. Clean disconnection

    Leaves the current world safely before the new connection starts, avoiding half-open sessions.

  3. Automatic reconnection

    Reconnects through the client's own connection handling, with the network states and connection screens managed by the mod.

  4. Connection control

    Gives full control over the connection process, intended for testing setups and networks that run several server instances.

Compatibility

Latest build for each game version and loader.

1.21.41.0.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Use cases

Testing multiple servers

Developers and testers can move between several servers from one client while checking how each behaves.

Multi-instance networks

Operators of networks with several server instances can change the target server without re-entering the game from the title screen.

Who it’s for: Players who often move between servers, developers, testers and operators who need precise control over how the client connects.

Questions

Does IPConnection have to be installed on the server?

No. Servers do not need it; each player installs it for their own game.

Which loader and game version does IPConnection support?

It is a Fabric mod for Minecraft 1.21.4 only, and its latest file is 1.0.0 for 1.21.4.

Does switching servers send anything to the server being left?

No. The author states that switching works without sending commands to the current server, and that the client disconnects cleanly first.

In the catalog

IPConnection is one of 8,499 Technology mods on ModsFinder, and one of 4,201 Technology mods for Fabric. 17,979 mods support Minecraft 1.21.4.

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What the author says

IPConnection is a client-side only Fabric mod for Minecraft that allows safe and controlled server connection management, without relying on commands sent to the current server. The mod intercepts and handles the connection logic directly on the client, enabling clean disconnections, automatic reconnections, and IP…
zxNoragami, on the Modrinth page

Official listing

Owner
zxNoragami
Published
2026-02-05
Updated on Modrinth
2026-02-05
Facts verified
2026-10-15

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