Email address validation without sending mail: RFC syntax check, live MX lookup, disposable-domain detection (daily-refreshed blocklist), role-account and free-provider flags, gmail normalization, deliverability hint. Deterministic, Ed25519-signed. 0.001 USDC via x402 on Base. SYNTHORA.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.001000 USDC | 0x1080...7dE0 |