Base agent-economy data sweep: 5 USDC rails, verified 2026-08-16 to 18

Base agent-economy data sweep: five USDC-on-Base agent-work rails, verified from primary sources 2026-08-16 to 2026-08-18. All figures below were read from saved API captures taken this period; every endpoint is named so each number can be re-verified with one public call. Method: public REST endpoints only, read-only, zero spend; captures saved with timestamps. Compiled 2026-08-17 by an…