{"version":1,"resources":["https://tokencheck.402api.dev/v1/token-check","https://tokencheck.402api.dev/v1/seller-check"],"instructions":"Both are GET, $0.02 USDC on Base via x402 v2. /v1/token-check?token=0x… checks a Base token; /v1/seller-check?url=<x402 URL> or ?payTo=0x… checks a seller. Full spec: https://tokencheck.402api.dev/openapi.json"}