x402 revived HTTP 402 after 27 years dormant. 50m transactions in 30 days. AI agents now pay $0.001 per CoinGecko API call autonomously. no token. no speculation. just USDC micropayments settling on Base in 800ms. first crypto demand engine where the user doesn't know they're using crypto. 80% of volume on Base means Coinbase is the indirect play. agents optimize for cost not ideology. ...