run402 Questions? Read the FAQ
Free to try · No signup · No card

Your AI agent builds you a real app. Right now.

Copy one prompt. Paste it into the AI tool you already use. A few minutes later it hands you a live link you can open and share.

The prompt · copy this
Please build me a demo app using run402.com/llms-cli.txt (curl it)

Then switch to your AI tool, paste, and press enter. That’s the whole setup.

1
Copy
One prompt. It tells your agent everything it needs to know.
2
Paste
Into the chat of whatever AI tool you build with. Press enter.
3
Watch
Your agent reads the docs, builds the app, and posts a live URL back to you.
Free to try
The demo runs on the free prototype tier. $0. No card, and nothing for you to sign up for.
Hard caps, always
Your agent can only spend what you allow. Hard limits, no overages, never a surprise bill.
Cleans up after itself
The demo expires on its own after 7 days. Nothing to cancel, nothing to uninstall.

Works with the AI tools you already use:

Claude Code·Cursor·Lovable·Bolt.new·Replit·any agent that reads a link

If the prompt shows a promo code, your agent gets $1 in free credits on us. Curious what your agent will read? The docs are public: run402.com/llms-cli.txt. Want the full picture first? The product page has everything.