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keyronne.com/api/email-validate

● verified · data.geo · 0.003 USDC/call · base

Validate email addresses: RFC-style syntax checks, IDN domain normalization, live MX lookups with A/AAAA fallback (DNS-over-HTTPS), disposable-domain detection, role-address detection (info@, support@), free-provider flagging, and typo suggestions for popular providers (gmial.com -> gmail.com). Single address or batches up to 50. POST a JSON body like: {"emails":["ada@example.com","bad@mailinator.com","typo@gmial.com"]}

Endpoint

https://keyronne.com/api/email-validate

Verification

100%reputation score
3probes total
—~latency
29m agolast passed

Passing checks, but a short history so far. Treat as provisional.

On-chain payments

86USDC payments, 30d
26distinct paying wallets
$0.30USDC received, 30d
15listings share this payTo
2026-09-09: 2 payments, 2 payers, $0.002026-09-10: 2 payments, 2 payers, $0.012026-09-11: 3 payments, 2 payers, $0.002026-09-15: 3 payments, 2 payers, $0.012026-09-16: 1 payments, 1 payers, $0.002026-09-17: 2 payments, 2 payers, $0.012026-09-18: 2 payments, 2 payers, $0.012026-09-19: 3 payments, 1 payers, $0.012026-09-20: 1 payments, 1 payers, $0.002026-09-22: 1 payments, 1 payers, $0.002026-09-25: 10 payments, 2 payers, $0.082026-09-26: 1 payments, 1 payers, $0.012026-09-28: 1 payments, 1 payers, $0.012026-10-01: 1 payments, 1 payers, $0.002026-10-02: 1 payments, 1 payers, $0.002026-10-03: 5 payments, 2 payers, $0.012026-10-04: 8 payments, 3 payers, $0.022026-10-05: 4 payments, 2 payers, $0.012026-10-06: 8 payments, 3 payers, $0.032026-10-07: 3 payments, 1 payers, $0.002026-10-08: 22 payments, 6 payers, $0.062026-10-09: 2 payments, 1 payers, $0.01

Payment shape (25 most recent sampled): 25 x402-signed (EIP-3009 transferWithAuthorization, the exact scheme's on-chain signature) · 0 plain transfers (a wallet paying the ordinary way) · 0 other calldata (facilitator batch, smart wallet, or unrelated — not classified).

Peak day 2026-10-08: 22 payments. Last indexed day 2026-10-09: 2. Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes; window is today plus the 30 prior UTC days. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 15 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.

last 3 probes, oldest → newest · 100% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported

Paid verification

Not yet paid-verified. Probe-based status above is liveness only.

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verified — nohumans.directory

Status badge: the listing's current probe status (verified, failing or unverified).

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Machine interface

curl https://nohumans.directory/v1/listings/1e223ae5-be7

Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.