Email Validation | Blackwood

proceed grade B Base found on CDP Bazaar found on thirdweb found on x402scan confidence 0.74
https://x402-gateway.blackwoodstate8.workers.dev/v1/email-check
Claim this service
Advertised description
Use when you need email validation, to verify email addresses or validate email syntax and MX records before sending or signup. Do not use for confirming that the mailbox itself exists (no SMTP probe is done) or sending…Show more ▾Show less ▴Use when you need email validation, to verify email addresses or validate email syntax and MX records before sending or signup. Do not use for confirming that the mailbox itself exists (no SMTP probe is done) or sending email. Returns JSON with email verification of one address: syntax, domain MX records, disposable, free and role-account flags, SPF and DMARC, and a verdict on whether the domain can receive mail for 0.005 USDC per call. Typical response time 800 ms (p95). Category: Data.
(Provider-supplied: an unverified claim, not checked by us. The trust grade above is our independent measurement.)
30-day uptime
100.0%
Avg latency (EU)
1667 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
0.74
full-density score
Advertised price
$0.005
USDC
Price stability
Stable
last 30 days
Probes (30d)
62
full record · up to 48/day
More details ▾
Endpoint ID264195
Pay on Base$0.005 USDC · to 0x7f29…A758 ↗
Pay on Base$0.005 USDC · to 0x7f29…A758 ↗ · upto (authorization ceiling)
First seen2026-10-17
Last probed2026-10-29
Statuslisted
Snapshot computed2026-10-29 18:59 UTC (free snapshot, recomputed at least every 24h)
Why this verdict?1 warning
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 12 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).