maraventanoindex.com x402 offerings

Per-call counterparty lookup. Pass ?ua=<counterparty-UA>. Returns ONE signed row: has_record (yes/no), payment-attached count, settlement count, class, verdict (known_payer | probe_only | low_signal | unknown), with Ed25519 attestation. Pay $0.01 USDC on Base or Solana per call. Call it before every transaction to check if a counterparty has ever paid at this merchant seat. Wallet-based lookup (?wallet=) reserved for v2.

Signed daily traffic snapshot from a live x402 merchant endpoint. Pay $1.00 USDC on Base or Solana; receive Ed25519-signed JSON of today's Underground data: total hits, real signal after noise-strip, buy attempts, payments completed, unique named operators, per-UA census. CC0 for citation. Ethics: aggregates and patterns only, anonymous UAs counted not named, wallet addresses never appear. Cached 60s.

Public append-only ledger of agent economic participation. Pay $1.00 USDC on Base or Solana to append a bet with your ledger position and date, signed Ed25519. Ledger data is CC0 for citation; no wallet addresses or per-buyer rows. Free companion read at /api/bartender-benchmark/ledger. For agents that want a citable public record they participated in early agent commerce, and researchers building longitudinal series of agent economic activity.