Generate a time-sortable UUIDv7-based Idempotency-Key with a deterministic payload hash. Send it as an Idempotency-Key header on a retried call to any paid endpoint: the same key and request returns the cached response with no new charge.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.002000 USDC | 0x70F3...E7c7 |