A self-contained agent-to-agent payment loop: three.ws-controlled wallets pay three.ws's own x402 endpoints in real USDC, settled by three.ws's own facilitator. No user funds, no external facilitator, no wallet outside the platform. It exists to dogfood and load-test the agent economy end to end — proving every paid endpoint settles real money, continuously — while costing only Solana network fees, because the principal recirculates between wallets you control. three.ws and @x402