dayzero.run

Invisible infrastructure for AI-built apps

No cloud setup required. Put your project live at lightning speed.

# paste into Claude / Cursor / Codex
fetch https://dayzero.run/ai.md

How it works

Stay in the chat. Keep the vibe.

Deploy, share, and iterate without opening a cloud console — Claude Code and Cursor run the loop for you.

Step 1

Vibe-code the app

Build the UI in Claude Code or Cursor until you’d actually send it to a friend.

Step 2

Ask your agent to go live

Paste fetch https://dayzero.run/ai.md — deploy stays in the same chat.

Step 3

Share with friends

Public HTTPS subdomain in seconds — then iterate without breaking flow.

Features

Cloud server alternatives, in fact you don't need them

Go live fast, store data without a database, virtual runtime machine — all managed from your coding agent.

Go live fast

Shareable link in seconds

Public HTTPS subdomain — the fastest path to deploy online.

No database setup

Virtual data table

Tables owned by your project — store and read data without worrying about a database.

Basic access control

Public or private

Share openly, or keep it private — simple authorization control for your project.

Keep the vibe

Skills library

Manage everything from your favorite coding agent — deploy, tables, access — with our skills library.

Compare

50x faster than cloud setup

Share a live link with friends in minutes — or still be stuck creating cloud accounts while the vibe dies.

In your AI chat

Ready

Cloud setup

Ready

Testimonials

Why builders keep the vibe here

Go live, share with friends, learn from visitors, improve — without leaving Claude Code or Cursor.

FAQ

Questions about the loop

Going live, virtual tables, access control, and staying inside your AI chat.

How do I host a Cursor or Claude Code UI without AWS?

Register at vibepage.cloud, copy your API token, then install the CLI and run d0 token YOUR_TOKEN followed by d0 deploy from your UI project. You get a public HTTPS subdomain — no AWS account, DNS, or SSL setup.

Can Claude Code, Cursor, or Codex deploy for me?

Yes. Paste fetch https://dayzero.run/ai.md into the same chat and ask the agent to follow it. Agents authenticate with your API token (non-interactive) and run deploy for you. Full playbook: for-agents.md.

What kinds of projects can I put online?

Static UIs — an index.html, or a publish folder like dist/ or build/. dayzero.run is for frontend demos, landing pages, and vibe-coded experiments. Project data can use virtual tables; it is not a full backend or cloud-ops platform.

Do I need to set up SSL certificates?

No. Every project URL on *.app.vibepage.cloud is served over HTTPS for you. No certbot, nginx, or “not secure” browser warnings to fight.

Is there a free plan?

Yes. Early access Free is $0 with no credit card — limited storage, one subdomain, and a monthly traffic cap. Upgrade when you need more. See pricing for Free, Pro, and Enterprise details.

How fast can I get a shareable link?

Once you have a token, deploy usually lands a live URL in seconds — fast enough to text someone the same night you finish the UI. No waiting on cloud account approvals or DNS propagation.

What’s the difference between deploy and tunnel?

d0 deploy publishes your static files to your public subdomain. d0 tunnel points that same URL at a server on your laptop (for live demos while you edit). When the tunnel stops, the last static deploy is still there.

Do I need a custom domain to share my idea?

No. Your default *.app.vibepage.cloud subdomain is enough to share with friends, investors, or Twitter. Custom domains are a later Pro-oriented feature — not required to go live tonight.

Is dayzero.run like Lovable or Base44?

No. Those tools build and host inside their own product. dayzero.run is for UIs you already vibe-coded in Claude Code, Cursor, Codex, or similar agents — then need a public HTTPS link without cloud setup.

Do I need to set up a database?

No. Use virtual data tables owned by your project — store and read data without standing up Postgres, MySQL, or similar.

Can I keep a project private?

Yes. Share openly, or keep it private with simple authorization control for your project.

Can I update the site after it’s live?

Yes. Change your UI, run d0 deploy again from the project folder, and the same subdomain updates. Keep your API token handy (or set VIBEPAGE_TOKEN) so you or your agent can redeploy anytime.