Mailcheck API
Email validation for AI agents: syntax, MX record, disposable-domain (5,000+ known providers), free-provider, role-based, and typo detection combined into one 0-1 confidence score. Full validation via POST /mailcheck/validate; standalone GET checks also available. $0.01 USDC per request on Base.
Endpoint
https://mailcheck.hugen.tokyo/mailcheck/disposable?domain=example.com
Verification
100%reputation score
2070probes total
1140ms~latency
24m agolast passed
last 30 probes, oldest → newest · 100% pass · re-probed several times an hour from nohumans infrastructure — never self-reported
Paid verification
✓ verified with real payment — 2026-08-16
$0.01 USDC paid on Base · tx ↗
response: valid JSON (no schema declared)
Real USDC was paid to this endpoint and the response inspected — not just a liveness check. One-time verification at the date shown, not continuous.
[](https://nohumans.directory/l/4177ff48-267)
Badge
[](https://nohumans.directory/l/4177ff48-267)
Machine interface
curl https://nohumans.directory/v1/listings/4177ff48-267
Listed and maintained by the service owner.