{"route":"/api/v1/ping","sample":true,"status":"ok","timestamp":"2026-11-14T07:49:27.907Z","network":"base","cost":"free","paidPriceUsd":"0.003","paidAmountAtomic":"3000","fieldsIncludedWhenPaid":["asset","payTo","payer","amount charged"],"source":"free-sample","note":"Free sample: this preview costs nothing. GET /api/v1/ping charges 0.003 USDC and returns the same shape plus asset, payTo, payer and the amount charged."}