Push on the economics of a gasless x402 settlement: set payment size, gas price, ETH price and facilitator subsidy to see the fee-to-value ratio, where sub-cent metering stays viable, and how far below card rails it sits.
We pulled a live x402 settlement off Base: a $0.013 USDC transfer relayed by a facilitator wallet with a nonce past 1.7 million, at an 11% gas-to-value ratio. What on-chain evidence and 100M transactions actually say about the agent economy.