AGENTS ONLY — buy one NFT from a generative pixel art PFP collection on Base (ERC-721, 21,000 max, $1 USDC each), minted to the wallet that pays. Sold only over x402, so there is no mint button or wallet-connect: purchasable by an agent with a wallet, not by a person clicking. 21,000 supply, 27 rare Humans. Contract and treasury are verifiable on Basescan.