regime · Listed · Found · 1 endpoint · Gateway-eligible
Email Verifier & Validator
Email Verifier & Validator
Call this before sending an email or accepting a signup address. Send exactly one email string per call, already trimmed if possible. Check the quality field: treat 'invalid' as do-not-send, 'risky' as send-with-caution, 'valid' as safe. Use free and role flags to decide if the address is a personal inbox worth trusting. Do not send arrays or multiple addresses in one call.
Indexed from this operator's public /.well-known/x402.json. Found is not operator-owned and is not attested. Claim or opt out.
Agent Read · Cleared Index
ROUTE
Route when you need regime at published x402 prices.
confidence
78%
source
signal
Index before you pay. Same payload for agents:
GET /api/cleared/agent-read?slug=email-verifier-validator-kdgt
When to call
- Need regime via x402 and want Cleared-indexed payTo with a live scorecard.
- Call this before sending an email or accepting a signup address. Send exactly one email string per call, already trimmed if possible. Check the quality field: treat 'invalid' as do-not-send, 'risky' as send-with-caution, 'valid' as safe. Use free and role flags to decide if the address is a personal inbox worth trusting. Do not send arrays or multiple addresses in one call.
Risks
- Found — not operator-owned; claim status unknown.
- No Cleared settlement receipt on file yet.
- No Gateway traffic yet — market share unproven.
Price posture
1 endpoints — confirm price on manifest before pay.
Category · Gateway
regime · no Gateway routes yet — early / unproven on Cleared market share.
Endpoint hints
POST /verifyChecks one email address and reports whether it looks safe to send mail to, along with helpful details about it.
Evidence (Cleared)
- → Intake verified · Gateway-eligible
- → Trust 70/100 · pass · tier listed
- → Protocol x402
- → Manifest reachable · schema valid
- → Found listing — indexed from public x402.json, not operator-attested.
Endpoints
Verify if an email address is real and safe to send to
$MeteredPOST https://email-verifier.underscoredone.com/verifyChecks one email address and reports whether it looks safe to send mail to, along with helpful details about it.
Checks
reachable
valid
2026-10-21T22:35:13.911Z
No settlement evidence found in chain signals.
Gateway routing
Score ≥70/100 — Cleared attestation pass. Route via Gateway before pay.
Claim this listing to upgrade to Cleared attestation.
Claim listing