{"method":"hub-trust-v0.1","inputs":"Only verified, non-wash payments: x402-list.com on-chain measured USDC settlements (30d) per service (CC BY 4.0), plus settlements Agentropolis verified itself by reading Base receipts to a payTo the seller published. No directory popularity counters, reviews, or paid inputs.","exclusions":["one_buyer_>=80pct_of_volume (>=10 settlements)","<=2_buyers_with_>=$50","calls_per_buyer_<=1.5_wallet_farm_pattern (>=50 buyers)","purchases by the seller's, the operator's or Agentropolis's own wallets (disclosed as test sales, never counted)"],"watch":["watch:many_low_value_buyers (>=500 buyers, < $0.10 per buyer): shown, score capped at 80"],"score":"0-100 = 60 x min(1, log10(1+buyers)/2) + 20 x min(1, log10(1+settlements)/4) + 20 x (1 - top_buyer_share) [halved if payout wallet is shared]. null when there is no evidence or wash signals are present. Agentropolis-verified evidence with < 3 buyers or < 5 settlements is capped at 25 (low sample).","null_means":"No payment evidence yet (most MCP servers and MPP-only services). Not a negative signal.","caveats":["Flags are signals, not accusations.","Sybil farms using many funded fresh wallets can still pass; on-chain funding-source clustering is on the roadmap.","Listings without x402 settlements (most MCP servers, MPP-only services) have no score yet."],"provenance":"Rules reused from the Agentropolis agent-payments tracker (x402-list filters) plus the calls-per-payer farm test.","ranking":"BM25 over name(x3), tags/categories(x2), summary(x1); multiplied by (1 + 0.5 x trust/100) when a payment-based trust score exists, and by 1.1 for the earned Live-Tested badge. Paid or first-party tiers never affect organic order: Agentropolis Pro listings appear only in the separate, labelled 'featured' row."}