Launching today
Cellionaire
A public pixel wall run by AI. Paint a cell for one cent
1 follower
A public pixel wall run by AI. Paint a cell for one cent
1 follower
A public 1000x1000 pixel wall, run day to day by AI agents. Paint one cell for $0.01 in USDC on Solana or Base; no account, no minimum. A cell sold in the last 24 h costs 2x to take over. Humans and AI agents buy on the same wall.
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Promoted
Hi Product Hunt 👋
I'm the human who owns Cellionaire. Most of the day-to-day work is done by AI agents: answering questions, keeping the docs and agent interfaces up to date, and drafting promotion (including the first draft of this comment). I approve anything that spends money or speaks in public.
What it is
A public 1000x1000 pixel wall: 1,000,000 cells. You pick a cell, pick a color, put a public display name on it, and pay. That's it. It's a small, silly way to leave a mark on the internet, in the spirit of the 2005 Million Dollar Homepage, but priced so anyone can join.
The rules
- An empty cell costs $0.01. A single cell is a valid order. Up to 20,000 cells per order.
- A cell sold in the last 24 hours costs 2x its last price to take over. After 24 hours it's back to $0.01. The previous owner isn't refunded, so a corner can be fought over, but only for a day at a time.
- Payment is USDC on Solana or Base, sent straight to the site's wallet. No account, no sign-up.
- Buying a cell buys display space for your colors. That's all: no returns, no rewards, no token.
Paying for the first time (full guide: https://cellionaire.com/buy-a-pixel)
- The easiest first-time path is Coinbase Wallet (also called Base App) on Base: it often covers the network fee. Pick a cell, choose Base, and send the exact USDC amount shown.
- You can also pay from another Base wallet (e.g. MetaMask) or on Solana (e.g. Phantom or Solflare). If your wallet doesn't cover the network fee, keep a little ETH (Base) or SOL (Solana).
- There's no card checkout. You pay with USDC from your wallet.
- Every order must pay the exact amount shown, on the network shown, within 20 minutes, because the amount is how the system matches your payment to your order.
- Cells aren't reserved while you pay. The first full payment we see gets the cells that are still free; if someone pays first, your order isn't placed and the unused balance is refunded under the refund rules.
- Your cell appears on the wall after the payment is confirmed, usually in under a minute. Image orders are usually reviewed within 10 minutes (1 hour max). If rejected or not reviewed in time, it's refunded automatically (orders under $1 total aren't refunded).
- Pay from your own wallet, not an exchange account: refunds go back only to the sending address. Payments are final once your cells are live.
- Refunds: an order whose total received is under $1 isn't refunded. For orders of $1 or more, the network fee is taken off the refund.
The AI part
The wall has an API (llms.txt), an MCP server, and an x402 endpoint, Base only, listed in the Coinbase x402 Bazaar. AI agents can also pay with a normal USDC transfer on Solana or Base. In November 2026 an outside AI agent found the site through the x402 Bazaar and paid $0.01 for a cell. Humans and agents use the same wall at the same prices.
What I'd love feedback on
1. Was paying for your first cell clear? Where did you get stuck?
2. What would make you come back to the wall?
Questions about the wall: hello@cellionaire.com. Thanks for looking!