ScriptMasterLabs.com · x402 Directory
Email & VAT Validation
Resource: https://onchaincheck.dev/email/auth · Directory page generated 2026-11-10T14:41:13.165Z from live sources.
The facts, as last reported 2026-11-10T14:40:27.353Z: this resource answers x402 payment challenges at 0.002 USDC on Base (exact), pay to 0x2ECB9E1fcca7A62758c679F11bC3241466d181d8. It is reported by Coinbase CDP and its directory state is live.
What it does
Check a domain's email authentication: SPF record and its all-mechanism and lookup count, DMARC policy, DKIM at common selectors, MX hosts and mail provider, and BIMI, with plain findings and an A-F grade. Answers whether mail from the doma
Payment options
| Network | Scheme | Asset | Amount | Pay to |
|---|---|---|---|---|
| Baseeip155:8453 | exact | USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | 0.0022000 atomic | 0x2ECB9E1fcca7A62758c679F11bC3241466d181d8 |
Verification — the enrichment record
| Verification state | facilitator-reported |
|---|---|
| Verified / reported at | 2026-11-10T14:40:27.353Z |
| Settlement recency | listing last updated 2026-11-10T14:10:29.749Z at its source |
| Freshness | live — last reported 2026-11-10T14:40:27.353Z, listing last updated at source 2026-11-10T14:10:29.749Z |
| Reporting facilitator | Coinbase CDP |
| Sources | cdp |
| Tags | email-auth, spf, dkim, dmarc, email-deliverability |
Call it
An unpaid call returns the live 402 challenge — that challenge, not this page, is the price quote:
curl -i "https://onchaincheck.dev/email/auth"
Pay it with any x402 client on Base. Networks: Base