B69.0 / 100
Surefact
Advertised description
(Provider-supplied: an unverified claim, not checked by us. The trust grade above is our independent measurement.)
Checks whether an email address can receive mail and whether to trust it: MX records (a domain whose own DNS servers can't be reached counts as undeliverable), the mail provider behind them (Gmail, Google Workspace,…
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Checks whether an email address can receive mail and whether to trust it: MX records (a domain whose own DNS servers can't be reached counts as undeliverable), the mail provider behind them (Gmail, Google Workspace, Microsoft 365, Proton, Mimecast and other common providers and gateways), SPF/DMARC sender authentication, domain age from RDAP (domains under 30 days are flagged), disposable-domain list, role accounts, free providers (regional ones such as yahoo.co.uk too) and typo suggestions, with a verdict. No SMTP probe. Use when validating a signup, screening for fraud, cleaning a contact list, or before sending mail to an address a user typed.
30-day uptime
100.0%
Avg latency (EU)
1288 ms
slow · measured from a single EU vantage point; includes network round-trip distance to the endpoint; a geographically distant endpoint reads slower even when its server is fast, so it is only lightly weighted in the score
Confidence
0.80
full-density score
Advertised price
$0.005
USDC
Price stability
Stable
last 30 days
Probes (30d)
82
full record · up to 48/day
More details ▾
| Endpoint ID | 240097 |
| Pay on Base | $0.005 USDC · to 0x89bd…1391 ↗ |
| First seen | 2026-10-14 |
| Last probed | 2026-10-29 |
| Status | listed |
| Snapshot computed | 2026-10-29 15:47 UTC (free snapshot, recomputed at least every 24h) |
Why this verdict?2 warnings
A wallet payment page opens first; approve the USDC payment and the full JSON report loads right in your browser. Want a taste first? Read a free full sample report.
This page is the free cached snapshot (computed 17 hours ago, refreshed at least every 24h). Here's what the paid API adds.
✓Live re-probe at decision time
The score is computed the moment you ask, not up to 24h ago.✓Instant snapshot refresh
Every paid call rewrites this page, the badge and the card immediately.✓The full “why”, machine-readable
Confidence band, component breakdown, every risk flag with its evidence.✓On-chain settlement proof
Real USDC volume and distinct payers behind the pay-to wallet.✓90-day raw history
Every listing, price and payTo change, every probe result.✓Ranked better alternatives
Higher-scored endpoints serving the same function, when they exist.✓Change & liveness alerts
PayTo/price moves, spec regressions, downtime; 5-minute probes while watched.
$
npx -y x402-trust-mcpGive your agents the tools to do all of this for you, with one install. Agents use the x402_trust_score MCP tool or POST /v1/x402-trust directly (pay-per-call over x402, from $0.005).