You must have the Fabric Loader installed for Minecraft 1.17.1.
If you are tech-savvy, you can verify the checksum provided on the official Wurst site to ensure the file hasn't been tampered with. Download Wurst v7.15.3 MC1.17.1File: Wurst-Clie...
Most Wurst features require the Fabric API mod placed in your mods folder. You must have the Fabric Loader installed for Minecraft 1
WurstClient.net — This is the safest place to get the .jar file. Download Wurst v7.15.3 MC1.17.1File: Wurst-Clie...
Minecraft 1.17.1 requires Java 16 or higher to run correctly. ⚠️ Safety Warning
Sites like "Minecraft-Cheats" or random "Direct Download" blogs often bundle malware or "adware" installers with the mod.