{"service":"mev-history-mcp","endpoint":"/v1/tx/sandwich_check","method":"POST","price":"$0.050","atomic_amount":50000,"network":"base","network_caip":"eip155:8453","pay_to":"0x1664530DC2A1CA350B1dbaD1Fc1F1a70c90fe4de","resource":"https://mev-history-mcp.mtree.workers.dev/v1/tx/sandwich_check","demo_url":"https://mev-history-mcp.mtree.workers.dev/demo/sandwich_check","contact":"https://mev-history-mcp.mtree.workers.dev/contact","hint":"POST this path with an x402 payment. GET/HEAD are metadata checks and are intentionally unpaid."}