Wash-vs-organic score for the top x402 resources in the CDP Bazaar and PayAI catalogs: per resource price_usdc, unique_payers, calls, wash_risk (low/medium/high) and a reason. No input. Use it to skip sellers whose volume is self-pay before your agent spends. Cached 15 minutes. Scores are heuristics from public catalog stats, not proof of wash trading. How to buy: call the endpoint (GET); it answers HTTP 402 with the exact USDC amount and payTo on Base, then retry with the x402 payment (PayAI facilitator). Price is per call. JSON response.