mod
client key loginMinecraft mod for 1.21.1
authenticate to servers using cryptography instead of Mojang account
- Latest version
- 0.4.3+1.21
- Minecraft
- 1.19.2 to 1.21.1
- Java
- Java 21+
- Loader
- Fabric
- Licence
- Unlicense
- Downloads
- 3.4k
- Updated
- 2 y ago
- Available on
- Modrinth
Our hostingHost client key login servers
One click and client key login is installed with the right loader, on hardware built for it.
- 1.21.1
- Fabric
- One click mod install
- Loader matched for you
- Ryzen CPUs
- NVMe SSD
Screenshots
Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.
Minecraft versions
Every version client key login declares support for, newest first, with the Java runtime that version needs.
Download
From client key login’s own host. Nothing is re-hosted here.
client-key-login-0.4.3+1.21.1.jar · 61 KB · for 1.21.1, 1.21
ae5ed8554bba…Older versions14Hide older versions
- 0.4.2+1.19.413 Jul 20241.19.461 KB127 downloads
006834b95fb2…Get - 0.4.2+1.20.113 Jul 20241.20.161 KB438 downloads
75db971225e4…Get - 0.4.2+1.219 Jul 20241.2161 KB147 downloads
39fc7cf42d93…Get - 0.4.1+1.218 Jul 20241.2161 KB139 downloads
96838831641a…Get - 0.4.1+1.20.1+compat8 Jun 20241.20.161 KB194 downloads
198e740cb2a6…Get - 0.4.1+1.20.18 Jun 20241.20.161 KB93 downloads
e1eb48535e18…Get - 0.4.1+1.20.68 Jun 20241.20.661 KB142 downloads
b14ad7080a76…Get - 0.4.0+1.20.66 Jun 20241.20.660 KB97 downloads
dfb525a14845…Get - 0.4.0+1.20.16 Jun 20241.20.160 KB106 downloads
ec39a520d9f9…Get - 0.4.0+1.20.26 Jun 20241.20.260 KB127 downloads
c9e518ac8ce9…Get - 0.3.0+1.20.23 Jun 20241.20.254 KB76 downloads
9ecb2bdf9f98…Get - 0.2.1+1.20.11 Jun 20241.20.149 KB125 downloads
a667e1cd87ac…Get - 0.2.122 Nov 20231.20.250 KB177 downloads
1ebd2e15bc79…Get - 0.2.018 Nov 20231.20.250 KB300 downloads
99e6dba88478…Get
Frequently asked
Does client key login work on Minecraft 1.21.1?
Yes. 1.21.1 is the newest Minecraft version client key login declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.
Which Minecraft versions does client key login support?
Everything the author has declared, from 1.19.2 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.
Do I need to install client key login on the client or the server?
Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.
Which platform or loader does client key login support?
Fabric. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.
Which Java version do I need for client key login?
On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.
What licence is client key login under?
Unlicense, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.
How do I install client key login?
Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.
Where do I download client key login safely?
Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.
Works on the same versions
Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.
Is this information wrong or missing something? .