Counterparty exposure analysis: given wallet address, scans last 30 days of Base USDC transfers and aggregates interactions with all labeled entities (CEX, DEX router, bridge, protocol). Returns labeled counterparties with name, category, in/out tx count, total USDC volume, last_block. Red flags if counterparty is sanctioned, mixer, scam. For agent due diligence, automated KYC-lite, source-of-funds verification.