Google tells you what exists. Faceabot tells you what holds up.
$0.01/call via x402: OFAC wallet screen, DNS, email auth, domain age, email verify, URL unshorten.
MCP endpoint :https://sdn-screen-x402.sdnscreen.workers.dev/mcp · website · measurements and detailsPaid email, DNS, mail-security and RDAP intelligence for agents over x402.
MCP endpoint :https://email-dns-preflight-x402.copper-crate.workers.dev/mcp · website · measurements and detailsDNS and email security: check SPF, DKIM, DMARC, DNSSEC, DANE and build the records. 45 tools.
MCP endpoint :https://intodns.ai/api/mcp · website · measurements and detailsEmail, phone, domain, URL & OFAC verification; phishing and IBAN checks via x402.
MCP endpoint :https://x402.professorsausages.com/mcp/trust · website · measurements and detailsSPF, DKIM, DMARC, MTA-STS and domain-expiry checks for any domain, with SPF lookup counts.
MCP endpoint :https://email-auth-check.quietworklabs.workers.dev/mcp · website · measurements and detailsPrivacy-focused email: domains, DNS verification, aliases, SMTP sending, mailboxes and calendars.
Package npm :@forwardemail/mcp-server · website · measurements and detailsAudit SPF, DKIM, DMARC, MX, BIMI, MTA-STS for a domain; score + grade. $0.003 USDC/call via x402.
MCP endpoint :https://x402-dns-auth-checker.microtools-x402.workers.dev/mcp · website · measurements and detailsDomain intel for AI agents: RDAP registration, DNS, email deliverability, tech stack.
MCP endpoint :https://domain.datakoot.com/mcp · website · measurements and detailsDNS resolution, HTTP security headers, and SPF/DMARC email hygiene audits.
MCP endpoint :https://mcp-domain-auditor.stubby76.workers.dev/mcp · website · measurements and detailsCheck a domain's DNS, SPF/DMARC and TLS before trusting it. $0.003/call via x402.
MCP endpoint :https://domain-check-production-6228.up.railway.app/mcp · website · measurements and detailsCheck a domain's public SPF, DMARC, MX and DKIM DNS records on demand. No account required.
MCP endpoint :https://dmarcshark.com/mcp · website · measurements and detailsDomain intel for AI agents: RDAP registration, DNS, email deliverability, tech stack.
MCP endpoint :https://domain.selflabbs.com/mcp · website · measurements and detailsAgent utility belt: memory, locks, webhook inboxes, timers, DNS, email, URL, timezone, cron
MCP endpoint :https://zerm.dev/mcp · website · measurements and detailsAudit email domain deliverability: SPF, DKIM, DMARC, MX. Score 0-100. x402.
MCP endpoint :https://email-deliverability.api.klymax402.com/mcp · website · measurements and detailsEmail verification and domain intelligence for AI agents. MX, RDAP, SSL checks. 25 free credits.
MCP endpoint :https://165-227-136-26.sslip.io/mcp · website · measurements and detailsChoose HTTP, browser, machine endpoint, or avoid before an agent visits an unfamiliar URL.
MCP endpoint :https://preflight-api-production-01a2.up.railway.app/mcp · website · measurements and detailsRemote MCP server: 19 domain-hygiene and email-auth tools (DNS, SPF, DMARC, DKIM, TLS).
MCP endpoint :https://www.domainposture.com/mcp/mcp · website · measurements and detailsReputation for IPs, domains, URLs, hashes, emails, phones; CVEs; injection and email scans
MCP endpoint :https://api.ismalicious.com/mcp · website · measurements and detailsScan and fix a domain's email deliverability (SPF, DKIM, DMARC, MTA-STS, BIMI, DNS blocklists).
MCP endpoint :https://mcp.inboxguard.io/mcp · measurements and detailsMonitor and manage email authentication (SPF, DKIM, DMARC, MTA-STS, BIMI) for your domains.
MCP endpoint :https://api.palisade.email/mcp · website · measurements and detailsAI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt
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