{"id":"x402_counterparty_reputation","price_usdc":0.05,"description":"x402 counterparty reputation: score a paid endpoint and merchant wallet before an agent spends. Useful for payment allowlists, service selection, and automatic spend caps.","method":"POST","execute_url":"https://api.sys84.org/v1/services/x402_counterparty_reputation","payment_discovery":{"method":"POST","url":"https://api.sys84.org/v1/services/x402_counterparty_reputation","instruction":"POST without payment to receive HTTP 402 with PAYMENT-REQUIRED header, then retry POST with PAYMENT-SIGNATURE or X-Payment."},"payment":{"price_usdc":0.05,"pay_to":"0x64e4e6c18849ba687A468dcad0A582AC6f8089E4","network":"base:8453","asset":"USDC","docs":"https://api.sys84.org/quickstart"},"input_schema":{"resource_url":"string paid x402 resource URL","pay_to":"string EVM merchant wallet address","service_name":"string optional provider or service name","expected_amount_usdc":"number optional expected payment amount in USDC","chain":"string optional, default base"},"output_schema":{"score":"number 0-100","verdict":"string trusted/usable_with_limits/review/avoid","reasons":"array of machine-readable reason codes","endpoint_probe":"object HTTP probe result","observed_reputation":"object SYS84 observed request/payment counts, settlement totals, success rate, and confidence","recommendation":"string spend guidance"}}