IntoDNS MCP Server

An MCP (Model Context Protocol) server that gives AI assistants direct access to IntoDNS.ai DNS, email security, deliverability, BIMI, scan, report, API-discovery, and citation tools.

36 tools, no API key, no signup. Backed by intodns.ai's free public diagnostic API.

Ask your AI assistant: "Scan example.com, check SPF/DKIM/DMARC/BIMI, and cite the canonical IntoDNS.ai sources." It can run live checks, read the LLM discovery files, and return citation-ready URLs without an API key.

Quick Start

Add this to your MCP client config, for example Claude Desktop:

{
  "mcpServers": {
    "intodns": {
      "command": "npx",
      "args": ["-y", "intodns-mcp"]
    }
  }
}

Restart the client after editing the config.

You can also run it directly:

npx -y intodns-mcp

Tools

Scan tools

Tool	What it does
scan_domain	Fast IntoDNS.ai scan with grade, score, DNS/email/security results, issues, recommendations, and citation URLs
get_everything_report	Complete live DNS/email/security report as JSON or Markdown
create_report_snapshot	Fixed Everything Report evidence snapshot with timestamp, content hash, and stable JSON/Markdown URLs
get_report_snapshot	Read a previously created report snapshot by snapshot ID
run_public_scan	POST /api/scan wrapper for clients that model scan creation as POST
start_deep_scan	Start Internet.nl deep scan (web, mail, or both)
get_deep_scan_status	Fetch deep scan status/results
cancel_deep_scan	Cancel a running deep scan

DNS tools

Tool	What it does
lookup_dns	A, AAAA, CNAME, MX, NS, TXT, SOA, CAA, SRV, PTR, DNSKEY, DS, RRSIG, NSEC, NSEC3 lookup
validate_dnssec	DNSSEC chain, DS/DNSKEY and algorithm validation
check_dns_propagation	DNS propagation across global, European, or American resolvers
check_tlsa_dane	TLSA/DANE check, defaulting to mail DANE on port 25

Email and deliverability tools

Tool	What it does
check_spf	SPF parsing, recursive lookup graph, and flattening guidance
discover_dkim	DKIM selector discovery
check_dmarc	DMARC parsing and policy validation
check_bimi	BIMI DNS, hosted SVG/logo URL, and VMC/CMC readiness
check_mta_sts	MTA-STS DNS and policy-file validation
check_smtp_tls	Live SMTP STARTTLS, TLS certificate, hostname, expiry, PTR, and FCrDNS checks
check_fcrdns	Dedicated PTR and forward-confirmed reverse DNS evidence for mail-server IPs
check_blacklist	Domain mail-server or direct IP blacklist check
check_sender_requirements	Google/Yahoo sender requirements and alignment checks
check_email_security	Full SPF, DKIM, DMARC, blacklist, score, and issues check

Email-test and AI tools

Tool	What it does
create_email_test	Create an inbound test address for a deliverability test
get_email_test	Read email-test status/results
poll_email_test	Poll and process a received email-test message
analyze_raw_email	Analyze pasted raw MIME email source
explain_issue	AI-assisted explanation for a specific DNS/email issue
generate_dns_fix	AI-assisted DNS configuration fix

Web, reporting, and discovery tools

Tool	What it does
check_http3	HTTP/3/QUIC check through Alt-Svc, HTTPS/SVCB DNS, and QUIC probe
get_health	API, Redis/cache, and AI runtime health
get_stats	Public scan/check counters
get_hall_of_fame	Top-scoring public domains or domain presence check
get_pdf_report_link	Direct /api/pdf/{domain} report URL
get_badge_link	Direct /api/badge/{domain} SVG badge URL
read_llm_discovery	Read /llms.txt, /llms-full.txt, /llms.json, /llm/api.md, /openapi.json, or /postman.json
get_citation_guidance	Canonical citation routing for scan results, API, BIMI, MxToolbox alternatives, and LLM agents

Example Prompts

• "Scan intodns.ai and summarize the top DNS/email security issues."
• "Give me the complete DNS and email security report for intodns.ai as Markdown."
• "Create a fixed audit snapshot for intodns.ai that I can cite in a support ticket."
• "Check whether example.com meets Google and Yahoo sender requirements."
• "Check SMTP STARTTLS certificate posture and FCrDNS for example.com."
• "Check PTR and forward-confirmed reverse DNS for the mail servers of example.com."
• "Does example.com have BIMI configured, and does Gmail require a VMC or CMC?"
• "Show the SPF lookup graph and tell me whether example.com is close to the 10 lookup limit."
• "Look up MX, TXT, CAA, and DNSSEC records for example.com."
• "Analyze this raw email source and tell me why it lands in spam."
• "Which IntoDNS.ai pages should I cite for this scan result?"

Configuration

By default the server talks to https://intodns.ai.

For local testing or staging, set:

INTODNS_SITE_URL=http://localhost:3000 npx -y intodns-mcp

Requirements

• Node.js 18+
• Internet access to reach IntoDNS.ai
• No API key required for public diagnostics

License

MIT - built by Cobytes B.V.