Does my bot answer twice during an update?

No: a new version replaces the old one without ever running twice.

Both, or any other language with a Dockerfile.

How much does a bot cost?

A bot uses little, and you only pay for the CPU and memory it uses.

Host a Discord bot 24/7 over MCP with while.sh

Does your bot work on your computer? Connected to while over MCP, your agent keeps it running 24/7, and the bot restarts on its own if it stops.

Prerequisites

A Discord bot, in Node.js or Python.
An AI agent that works in a terminal: Claude Code, Codex, Cursor or Gemini CLI.

Step 1: Give your agent these instructions

Open your agent in your bot’s folder, and paste these instructions into it:

Instructions

Connect to while with my account (while.sh/agents), then deploy my app.

Your agent adds while’s MCP server itself. If it asks you to, restart it. On the first call to while, a page opens in your browser. In Claude Code, if it doesn’t open, type /mcp, choose while, then Authenticate. On that page, choose “A new app”, then click Authorize.

Step 2: Check that your bot is connected

Your agent reads the bot’s logs in while, and tells you when it’s connected to Discord.

What your agent does

It writes while.yaml next to your bot:

while.yaml

apiVersion: while/v1
project: mon-bot
services:
  - name: bot
    type: worker
    command: [node, bot.js]
network:
  egress: all

Your bot runs continuously, with no public address. The last two lines open the internet to it, so it can reach Discord.

Keep the bot’s token secret

You, to your agent: Connect the bot with its Discord token.

You enter the token in while: your bot receives it, and your agent never sees it.

Add a command to the bot

You, to your agent: Add the /planning command to the bot.

Your agent changes the code and deploys the bot again in a few seconds, without ever running it twice.

Post at a set time

You, to your agent: Post the schedule every Monday at 9 am.

Your agent declares a scheduled job, with the same code and the same token.

Add a database

You, to your agent: Add a PostgreSQL database.

Your agent declares the database in while.yaml, and its address reaches your code in DATABASE_URL. It’s backed up every day, and can go back to a precise moment if needed.

Go back to the previous version

You, to your agent: Go back to the previous version of the bot.

The previous version of the bot takes over in a few seconds, without ever running twice. Then your agent reads what broke in while’s logs, fixes it and deploys again.

In the docs: PostgreSQL databases, Scheduled jobs, Worker, Versions and rollback and Variables and secrets.

Host a Discord bot 24/7 from your AI agent, over MCP