Kleiders Custom Renderer API Mod (1.21.1, 1.20.1) – Change The Player/Mobs Models
Kleiders Custom Renderer API Mod (1.21.1, 1.20.1) is a technical library created by the modder kleiders3010. It provides functions for altering the player’s appearance, primarily used in their own mods-but it’s also been adopted by other developers for similar purposes. Loaded on demand by: Create protection pixel mod – this means the API is only activated when required by that specific mod, helping optimize performance.
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Features:
- Swap out player skins or apply partial textures to specific body parts without making the rest invisible.
- Adds entirely new models or layers to players and mobs, perfect for transforming appearances.
- Supports transparent textures and lets you hide the base model when applying new visuals.
- Ensures custom appearances are visible to all players in multiplayer environments.
- Modify entity size and hitboxes dynamically using built-in procedures.
Screenshots:





Requires:
How to install:
Click the following link to view details: How to Install Mods for Minecraft Java Edition on PC: A Beginner Guide
Kleiders Custom Renderer API Mod (1.21.3, 1.20.1) Download Links
For Minecraft 1.16.5
Forge version: Download from Server 1 – Download from Server 2
For Minecraft 1.18.2
Forge version: Download from Server 1 – Download from Server 2
For Minecraft 1.19.2
Forge version: Download from Server 1 – Download from Server 2
For Minecraft 1.19.4
Forge version: Download from Server 1 – Download from Server 2
For Minecraft 1.20.1
Forge version: Download from Server 1 – Download from Server 2
For Minecraft 1.20.4
NeoForge version: Download from Server 1 – Download from Server 2
For Minecraft 1.20.6
NeoForge version: Download from Server 1 – Download from Server 2
For Minecraft 1.21.1, 1.21
NeoForge version: Download from Server 1 – Download from Server 2
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June 17, 2025