Update your Discord app/bot is profile for global/server specific.

avatar_banner.js

import { Client, Events, GatewayIntentBits } from "discord.js";

const BOT_TOKEN = ""; // Your Discord bot token
const GUILD_ID = ""; // Optional: target guild to clear overrides

const APP_AVATAR = ""; // Application avatar
const BOT_AVATAR = ""; // Bot avatar
const BANNER_URL = ""; // Application banner

const APP_BIO = ``; // App description
const APP_TAGS = []; // App tags

if (!BOT_TOKEN) {
	throw new Error("BOT_TOKEN is required in env.");
}

const client = new Client({ intents: [GatewayIntentBits.Guilds] });

client.once(Events.ClientReady, async () => {
	console.log(`Logged in as ${client.user?.tag}`);

	try {
		// Ensure application is fetched to access edit()
		await client.application?.fetch();

		if (!client.application) {
			throw new Error("client.application is not available.");
		}

		// Update global application profile
		// You can pass URL strings or a Buffer for avatar/banner.
		await client.application.edit({
			icon: APP_AVATAR,
			// description: APP_BIO,
			// tags: APP_TAGS,
		});

		client.user.setAvatar(BOT_AVATAR);
		client.user.setBanner(BANNER_URL);

		console.log("✅ Application profile updated.");

		// Optionally clear guild-specific member profile overrides so global avatar shows
		if (GUILD_ID) {
			const guild = await client.guilds.fetch(GUILD_ID);
			const me = await guild.members.fetchMe();

			if (!me)
				throw new Error("Bot is not in the guild or fetchMe failed.");

			// Clear guild profile overrides (nick/avatar/banner/bio)
			await me.edit({
				nick: null,
				avatar: null,
				banner: null,
				bio: null,
			});

			console.log("✅ Cleared guild-specific profile overrides.");
		}
	} catch (err) {
		console.error("❌ Failed to update profile:", err);
	} finally {
		// Give Discord a moment to accept changes, then destroy the client
		setTimeout(() => client.destroy(), 1000);
	}
});

client.login(BOT_TOKEN);

namestyle.js

import "dotenv/config";

const TOKEN = "";       // BOT TOKEN
const GUILD_ID = "";    // GUILD ID

/** Font IDs */
export const Font = {
    DEFAULT: 11,
    BANGERS: 1,
    BIO_RHYME: 2,
    CHERRY_BOMB: 3,
    CHICLE: 4,
    COMPAGNON: 5,
    MUSEO_MODERNO: 6,
    NEO_CASTEL: 7,
    PIXELIFY: 8,
    RIBES: 9,
    SINISTRE: 10,
    ZILLA_SLAB: 12
};

/** Effect IDs */
export const Effect = {
    NONE: 0,
    GLOW: 1,
    GRADIENT: 2,
    NEON: 3,
    CHROMATIC: 4,
    SHIMMER: 5
};

function hex(hexValue) {
    // accepts: 0xRRGGBB or "#RRGGBB"
    if (typeof hexValue === "string") {
        return parseInt(hexValue.replace("#", ""), 16);
    }
    return hexValue;
}

async function updateNameStyle({
    font = Font.PIXELIFY,
    effect = Effect.GLOW,
    colors = ["#5865F2", "#EB459E"]
} = {}) {

    const payload = {
        display_name_font_id: font,
        display_name_effect_id: effect,
        display_name_colors: colors.map(hex)
    };

    console.log("Payload:", payload);

    const res = await fetch(
        `https://discord.com/api/v10/guilds/${GUILD_ID}/members/@me`,
        {
            method: "PATCH",
            headers: {
                Authorization: `Bot ${TOKEN}`,
                "Content-Type": "application/json"
            },
            body: JSON.stringify(payload)
        }
    );

    console.log("Status:", res.status);
    console.log(await res.text());
}

/** Example usage */
updateNameStyle({
    font: Font.CHERRY_BOMB,
    effect: Effect.SHIMMER,
    colors: ["#7d6153"]
});