How an AI Agent Spends Two Cents: Inside an x402 TransactionCrossmint illustrates a narrowly authorized USDC payment on Base through an x402 facilitator.TIBBIR UNIVERSE THIS IS TIBBIR How to get TIBBIR Ribbit in numbers Connected clues Account archive Bridge & contracts On-chain research Connections Community The story Reading room Network map Timeline Findings Source library Conversations People & companies Open questions Export & reuse