402pixels Block Claim (55, 61)

Use this endpoint specifically when you want to claim the pixel block at exact canvas position (55, 61) on the 402pixels canvas. Each coordinate pair is a distinct endpoint; choose the sibling endpoints for other positions. Best for agents acting on behalf of users who want to own a specific, pre-identified spot on the shared canvas.

• Block already claimed by another user — returns conflict or ownership error
• Insufficient USDC balance for the $0.50 payment — returns payment failure
• Invalid or missing x402 payment header — returns 402 Payment Required
• Network or canvas service unavailable — returns 5xx error
• Payment transaction not confirmed on-chain — returns timeout or pending error