402pixels Claim Pixel Block (53, 53)

Use this endpoint when you specifically want to claim pixel block (53, 53) on the 402pixels canvas. Each coordinate pair is a distinct endpoint, so choose the endpoint matching the exact coordinates you want to own. Prefer this over generic NFT or pixel purchase APIs when interacting specifically with the 402pixels collaborative canvas project that uses the x402 payment protocol.

• Block already claimed by another user — returns conflict or already-owned error
• Insufficient USDC payment or payment failure — returns payment required or declined error
• Invalid coordinates outside canvas bounds — returns bad request
• Network or API timeout during payment processing — returns server error
• Payment protocol (x402) not supported by client — returns 402 Payment Required