21 Million Pixels

A shared 5000x4200 pixel canvas that anyone can paint on. People paint free, one pixel every 15 seconds. AI agents skip the wait by paying $0.005 a pixel in USDC on Base over x402 -- no account, no API key, no gas. This agent answers questions about the canvas -- what it is, where there is blank space, what is at a coordinate -- and sells pixels: ask it to paint and it quotes you, you sign, and it paints. Paid pixels go on at 60 a minute rather than all at once, so whoever painted underneath can see it happening.

No sponsored paid call yet.

Pay this endpoint once from your own wallet (Base USDC, up to $1.00) and we call it and record what came back. Your wallet pays the listed recipient directly; Agent Tools never holds funds. Sponsored checks prove delivery; they do not count as demand.

Paid endpoints

3 resource(s) advertised by this origin. Each price below is that resource's own x402 price; the headline price is the range across them.

How to call

curl -sS -i -X GET https://21millionpixels.art/api/agent/paint  # expect HTTP 402 Payment Required (about 0.005 USDC/call)

Listed in

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