Limited offer Lifetime hosting — $99 once, forever yours. 200 spots available Claim yours →
a better way to run claude code & codex

Your AI agent never sleeps.

Claude Code running 24/7 on a managed server. Open terminal, tell it what to build. Close your laptop — it keeps working.

Start free Try the AI Builder

No signup needed to try. Build a website in 30 seconds.

× Laptop closed = agent dead × Dropped SSH sessions ✓ Not here
950+
Developers
1128+
Environments created
66+
Countries
99.9%
Uptime
How it works
1
Pick a plan
Choose your resources. Start small, upgrade anytime.
2
Open your terminal
Browser or SSH. Works from your phone too.
3
Log in and go
Claude Code is ready. Start with 20 free messages, then connect your Anthropic account.

Ready in 30 seconds

Sign up, pick a plan, and your server is live. Claude Code is pre-installed, your domain is active, and you can start building immediately. No setup, no configuration, no waiting.

Your project is live instantly

Everything your AI agent builds is online immediately on your own URL. Share it with clients, test it on your phone, or send the link to your team. No deploy commands, no CI/CD — it just works.

Everything included, one price

Hosting, terminal, SSL, domain, backups — all included from $5/month. No hidden fees, no setup costs. Upgrade or cancel anytime.

Mobile-friendly terminal

A terminal that actually works on your phone. Increase font size for readability, copy with one tap, quick-action buttons for common commands. No SSH client needed — just open your browser and code.

Is your website AI-ready?
Check if AI assistants like ChatGPT and Claude can find and recommend your site.
What you can build
"Build me a portfolio site with my projects"
~3 min Live website, responsive, ready to share
"Create a landing page for my SaaS startup"
~5 min Hero, pricing, FAQ, signup form — deployed
"Build a dashboard that shows my analytics"
~10 min Full web app with charts and data

You describe it. Claude builds it. It's live on your domain instantly.

Why host4.ai

The honest way to build with AI

Other platforms lock you into credit systems with no alternative. We give you choices.

💻
AI Builder
Chat interface. Describe what you want, AI builds it. 20 free credits.
⚡
Claude Code + Codex
Full terminal. Bring your own key. Unlimited usage, no credits.
🔒
You own everything
Real Linux. Root access. Export anytime. No lock-in.
Feature host4.ai Others
AI billing ✓ Your choice — credits or own key ✗ Credits only, no alternative
Fix mistakes ✓ Unlimited with Claude Code/Codex ✗ Every fix costs credits
Real code access ✓ Full Linux, root, SSH ✗ Closed platform
Runs 24/7 ✓ Persistent, survives disconnect ✗ Session-based
Lock-in ✓ None — take everything, leave anytime ✗ Hard to migrate
See full comparison →
Simple pricing
🔥 Lifetime deal — $99 once, forever left
1 vCPU, 1 GB RAM, 5 GB storage. No monthly fees, ever. Pay once, keep it forever.
Claim your spot
Free trial
$0

Free forever. Build anything, no time limit.

  • 20 free messages included
  • 1 vCPU · 1 GB RAM
  • 5 GB storage
  • Works instantly, zero setup
  • SSH + browser terminal
Try free

No credit card required

Most popular
Pro
$15 /month

For active development and real projects.

  • 2 vCPU · 2 GB RAM
  • 20 GB storage
  • Connect your Anthropic account
  • 500 GB traffic
  • Priority support
Get started
Business
$49 /month

For teams and production workloads.

  • 4 vCPU · 4 GB RAM
  • 50 GB storage
  • Connect your Anthropic account
  • 1 TB traffic
  • Custom domain + dedicated support
Get started

We never stop your agent. Go over your limits and we extend you — $5 per block, with alerts first.

Add-ons
Custom domain
Map your own domain with auto SSL
$12 /mo
Dedicated IP
Your own static IPv4 address
$4 /mo
Email account
you@yourdomain.com inbox
$5 /mo
Expert setup
We configure everything for you
$30 /hour

All add-ons can be purchased anytime, later too.

Questions
Do I need my own Claude subscription?
No. You get 20 free messages to start — no account needed. After that, connect your Anthropic account (Pro from $20/mo or Max from $100/mo) or paste an API key. We provide the server, Anthropic provides the AI.
What happens if I close my browser?
Nothing. Your environment runs on our servers, not your machine. Claude Code keeps working inside a tmux session. Reconnect anytime from any device — your work is exactly where you left it.
How does overage billing work?
Each plan includes storage and traffic. If you go over, we extend your resources in $5 blocks (10 GB storage or 100 GB traffic). You get notified at 80% and at each new block. We never stop your environment.
Can I run other tools besides Claude Code?
Yes. You have full root access to an Ubuntu environment. Install Codex, Aider, Continue, or anything else. It's your Linux box.
Is my data safe?
Each environment is fully isolated with its own filesystem and network. Daily backups to a separate server. Other users cannot access your data.

Your agent is ready when you are.

Start free — no credit card needed
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