x402helper.xyz Domain Trust Assessment

Use this endpoint when an AI agent needs to perform compliance screening on a domain before initiating a payment or transaction, particularly when OFAC sanctions screening, trust scoring, and billing verification are all needed in a single call. Prefer this over general WHOIS or domain lookup services when the specific need is financial compliance and sanctions checking tied to a micropayment workflow.

• Missing required query parameter (domain, host, or url) — returns error response
• Domain not resolvable or malformed hostname — may return null result or error
• Payment not completed via x402 protocol — returns 402 Payment Required before delivering result
• OFAC service unavailable — may return failure or incomplete result
• Rate limiting or upstream compliance data unavailability