What agents actually pay for on a 500+ tool x402 catalog - the paid intelligence layer over Agent402's own sales ledger,

What agents actually pay for on a 500+ tool x402 catalog - the paid intelligence layer over Agent402's own sales ledger, the one demand signal that never reaches the chain (settlements are on-chain; WHICH tool was bought is not). Aggregate sales totals are free at /api/sales; this adds the per-tool layer they deliberately omit: pick the window (days 1-90) and the ranking lens with sort: 'buyers' (distinct paying wallets, default - the whale/wash-resistant read), 'sales' (volume), 'usd'.