It seems like you're looking for a Java client to interact with the Minecraft server. The prismarine-recipe package provides a way to represent Minecraft recipes in Java.

To download the Nu Html Checker «vnu.jar» file, which is required for the prismarine-recipe package, you can use the following command:

npm install vnu-jar

This will download the vnu.jar file and make it available for use in your project.

As for the Java client to interact with the Minecraft server, I couldn't find any specific information on a pre-built client. However, you can try using the prismarine-recipe package as a starting point and modify it to suit your needs.

Here's an example of how you might use the prismarine-recipe package to create a simple product recipe:

import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.item.crafting.Ingredient;

public class ProductRecipe {
    public static final String ID = "product_recipe";

    public static void registerRecipes() {
        // Register the product recipe here
        // ...
    }

    public static void createProductRecipe(ItemStack output) {
        // Create the product recipe here
        // ...
    }
}

Note that this is just a basic example, and you'll need to modify it to suit your specific use case.

As for the vector recipe, I couldn't find any information on how to download or use it. If you have more context about what you're trying to achieve with the vector recipe, I may be able to help further.