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DNSai Free DNS Tools

MCP serverVerified domain · dnsai.comRemote● LiveFree to try

Free live DNS, SPF/DMARC/MX, DKIM and WHOIS lookups for any domain. No key needed to start.

Install

Remote server: your requests and data go to mcp.dnsai.com. Claude Code: claude mcp add --transport http dnsai-free-dns-tools https://mcp.dnsai.com/mcp · Claude app: Settings → Connectors → Add custom connector.

What it can do

The tools this server listed when we connected to it, in its own words.

  • dns_lookup — Look up live DNS records for ONE domain. The default "common" view queries the standard set (A, AAAA, MX, NS, TXT, SOA, CNAME, CAA and more)
  • email_security_check — One call answers "is this domain's email properly secured?" — checks MX, SPF, DMARC and mail-gateway/provider detection for ONE domain. The
  • whois_lookup — WHOIS / RDAP registration data for ONE domain or IP — registrar, status, creation/expiry, name servers. Returns publicly published WHOIS/RDA
  • spf_analyze — Analyze a domain's SPF record for ONE domain — the include tree and the RFC 10-DNS-lookup-limit verdict. Use only when the question is speci
  • dmarc_check — Fetch and parse the DMARC policy for ONE domain — presence, p= policy, and the raw record. Use for DMARC-only questions ("does this domain h
  • validate — Validate the SYNTAX of an SPF or DMARC record string (no DNS lookup) — returns valid/invalid, a score, a letter grade, and a parsed breakdow
  • dkim_discover — Discover the DKIM signing keys published for ONE domain. Returns the signing keys found, the mail providers they map to, and their selectors
  • blacklist_check — Check whether ONE domain or IP is listed on major email blacklists / RBLs (Spamhaus, Barracuda, SpamCop, SORBS, UCEPROTECT and more). For a
  • search — Search DNSai for a domain. Returns result items (id, title, url) covering that domain's DNS records, email-security posture, DMARC policy an
  • fetch — Fetch a DNSai result document by id (from search). Runs the lookup and returns the data plus a summary.
  • request_api_key — Get a FREE DNSai API key that raises the daily limit from the small shared anonymous allowance to 100 lookups/day. Pass the user's email; th

KitScout test notes

Not tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.

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