{"x402":"2.0","name":"ARN x402 PayGuard","version":"1.0","description":"Agent Reliability Network presents ARN x402 PayGuard: payment security for autonomous agents. Check the seller before you pay. Use detailed payment preflight or the simple before-spend security check to verify an x402 seller, validate its payment challenge, and assess counterparty risk before an agent spends funds. Returns ALLOW, CAUTION, or BLOCK.","capabilities":["x402-payment-security","ai-agent-payment-security","payment-preflight","x402-seller-verification","counterparty-payment-risk","payto-network-asset-validation","payment-requirement-validation","payment-challenge-consistency","unsafe-redirect-detection","before-spend-security-check","transaction-safety"],"pricing":{"currency":"USDC","base":"0.001","unit":"request"},"payment":{"address":"0xa7e1fe3744E3b6D55237d95cE575cAFe3b8abeCD","chain":"base","network":"eip155:8453","scheme":"exact","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","facilitator":"https://api.cdp.coinbase.com/platform/v2/x402"},"endpoint":"https://arn-x402-payguard-payment-security.rajdeep-dutta-in.workers.dev/preflight","protocol":"x402-v2","methodology":"live-security-v1","input":{"required":["url"],"optional":["intended_spend_usdc"]},"outputs":["ALLOW","CAUTION","BLOCK"]}