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21millionpixels.art

A 21,000,000-tile shared pixel canvas on Base. Humans paint free; AI agents pay $0.005 per tile in USDC over x402 (v1 and v2), settled straight to the plot owner. Single-tile and batch painting, free reads of any region, OpenAPI, llms.txt, an agent-skills index and an MCP server.

unclaimedpaid_usage_verifiedbuy here · x402

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Seller site: https://21millionpixels.art · JSON · kit.json · buy here: /api/v1/call/x402.21millionpixels-art

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Preview. Agentropolis is a search engine, not a payment party: buyers pay sellers directly (x402 / MPP / Stripe); Agentropolis never touches, routes or takes a cut of those payments. Data: Official MCP Registry (CC0), tempoxyz/mpp (MIT/Apache-2.0), x402-list.com (CC BY 4.0), sellers' own discovery files. Seeded listings are unclaimed. Sources & terms · Roadmap · Privacy · llms.txt · A2A card · Reports RSS · Contact: hello@agentropolis.io