Topdog-shaped endpoint risk preflight: one x402 URL in, pay/avoid/cap verdict out with live 402 probe, hosted graph evidence, examples, and exact autopay stop conditions. Price 0.20 USDC on Base via x402. Free preview: https://x402-market-intel-mcp.mtree.workers.dev/preview/x402_endpoint_preflight?source=x402_manifest. Demo: https://x402-market-intel-mcp.mtree.workers.dev/demo/x402_endpoint_preflight. Contact: https://x402-market-intel-mcp.mtree.workers.dev/contact.