MCP connectors by dev.workers.qqqa16521-dce.base-payment-assurance-002

Verify Base Mainnet USDC payments through MCP using dual-RPC checks, safe finality, and exact sender, recipient, and amount matching. Includes 7 tools with self-service prepaid access: 0.11 USDC for 100 credits; each assurance call uses 1 credit.