#dns

Checks email domain deliverability via DNS: SPF, DKIM, DMARC, MX record validation, DNSBL blacklist lookup across 10 lists, RDAP/SOA domain age, and a weighted 0-100 composite score. Built for Clay, GTM, and outbound workflows.

Vee3 connects coding agents to a hosted catalog of live data and action tools through one MCP server at `https://mcp.vee3.io/mcp`. Use it for market research, due diligence, competitive analysis, and fact-heavy tasks without leaving your editor. Tools cover domain research (availability, WHOIS, DNS, RDAP, metrics), X (Twitter) search and profiles, Google Trends and keyword insights, SEO and backlinks, Google Maps places, YouTube and TikTok data, Rotten Tomatoes metadata, website screenshots, and free catalog discovery helpers. Sign up at [app.vee3.io](https://app.vee3.io) for a free tier. Tool calls use token-based billing; failed calls are not charged.

Domain security reconnaissance for AI agents — 13 tools (DNS, SSL, HTTP headers, email auth, port scan, ASN, RDAP) with a 0–100 Health Score. Free, no API key

14 utility tools for AI agents: QR code generation, PDF compress/merge/split/convert/unlock, cryptographic hashing (MD5/SHA-1/SHA-256/SHA-512), UUID generation, Base64 encode/decode, secure password generation, IP geolocation, DNS records, SSL certificate check, and WHOIS lookup. Free tier: 1,500 calls/month. No credit card required.

Geekflare MCP server to scrape, search, screenshot, and run network tools.

Inspect and manage IONOS CLOUD infrastructure via MCP

Exposes 280+ free dev/security tools from onlinecybertools.com as MCP tools in one server: Base64/URL/JWT encoders, MD5/SHA/HMAC/bcrypt/argon2 hashes, JSON/YAML/XML formatters, regex tester, network diagnostics (ping/traceroute/dig/whois/SSL/SPF/DMARC), and OSINT lookups. No auth, no API key.

121 MCP tools — geo, email, phone, company, DNS, FX, equities, weather, tax, econ, intel — streamable HTTP, one API key.

Real-time DNS, SSL, IP geolocation, blacklist check, web security scanner and 15 more network diagnostic tools for AI assistants

MCP server for IntoDNS.ai providing 36 free tools for DNS, DMARC, SPF, DKIM, BIMI, DNSSEC, MTA-STS, FCrDNS, blacklist and email security checks. Citation-grade report snapshots with content hashes for tickets, audits and AI agent evidence. No API key required. Install: npx -y intodns-mcp

28 WhoisXML API tools for AI agents — WHOIS lookups & history, reverse WHOIS, DNS lookup & history, reverse DNS/MX/NS, IP geolocation, IP netblocks, SSL certificates, subdomain discovery, threat intelligence, domain categorization, email verification, typosquatting detection, and bulk variants for batched lookups. Stdio and Streamable-HTTP transports, OAuth 2.1 with PKCE for hosted mode, npm and Docker distributions.

Email-deliverability tools for AI agents — 12 MCP tools across email verification, DNSBL across 50 zones, SPF/DKIM/DMARC analysis, spam-trap heuristic scoring, domain intelligence, and email finder. Free tier with no credit card. MIT licensed. Drops into Claude Desktop and Cursor via npx.

DMARKOFF MCP connects your DMARC monitoring data to AI assistants — Claude, ChatGPT, Cursor, Windsurf — via the Model Context Protocol. Instead of opening a dashboard and building filters, you ask questions and get real answers backed by actual data. Ask which domains dropped in compliance, why SPF is failing on a specific domain, which senders are causing DKIM failures, or whether yesterday's traffic looks anomalous compared to the 14-day baseline. The AI picks the right tool, queries your account data, and gives a concrete answer with numbers and actionable recommendations. 17 tools covering the full diagnostic flow: project overview, domain health, SPF/DKIM records, compliance stats, daily timeline, sending source analysis (by ISP, IP, hostname, or reporter), anomaly detection, geo breakdown, and live DNS checks for any domain — no account needed for DNS tools. Access is scoped to your DMARKOFF account via API key authentication with OAuth 2.1 support. All tools are read-only.

DMARKOFF MCP connects your DMARC monitoring data to AI assistants via the Model Context Protocol. Instead of opening a dashboard, you ask questions and get answers — domain health, compliance stats, SPF/DKIM diagnostics, anomaly detection, and sender analysis. Works with Claude, ChatGPT, Cursor, and any MCP-compatible client.

The first domain registrar an AI agent can use end-to-end. 12 MCP tools (generate_names, check_domain, buy_domain, list_domains, set_dns_record, brand_conflict_check, generate_logo, generate_legal_docs, generate_brand_kit, generate_social_kit, buy_link, check_domain_public). OAuth 2.1 (PKCE) at https://mcp.namemy.app/mcp for hosted clients (Claude.ai web, ChatGPT, Cursor). Bearer at /direct for stdio (Claude Desktop, scripts). Free public tier (1K calls/day, no key required).

Free MCP server that gives Claude, Cursor, Windsurf, and other AI assistants live DNS and email security scanning. Exposes 5 tools: scan_domain (full DNS & email security scan with A+ to F grade), check_email_security (SPF, DKIM, DMARC + blacklists), lookup_dns (any record type), check_dns_propagation (global resolvers), and validate_dnssec. No API key required. Install with: npx -y intodns-mcp. Powered by IntoDNS.ai.

Email deliverability tools for AI agents. Check SPF, DKIM, DMARC, BIMI, blacklists, SMTP/IMAP connectivity, and generate DNS records.

Email deliverability tools for AI agents. Check SPF, DKIM, DMARC, BIMI, blacklists, SMTP/IMAP connectivity, and generate DNS records.

WhoisJSON MCP Server exposes four domain intelligence tools directly inside Claude, Cursor, and Windsurf — no code required. whois_lookup: Full WHOIS registration record for any domain — registrar, creation and expiry dates, nameservers, registrant contacts, and DNSSEC status. dns_lookup: All DNS records in a single call — A, AAAA, MX, TXT, CNAME, NS, SOA, CAA, DMARC, and more. Useful for mail server audits, SPF/DKIM verification, and infrastructure mapping. ssl_check: TLS certificate details including issuer, expiry date, Subject Alternative Names, and full chain validity. Detect expired or misconfigured certificates instantly. domain_availability: Instant registration availability check for any TLD. Returns a clear registered/available status. Your WhoisJSON API key works identically for the REST API and the MCP server. 1,000 free requests/month, no credit card required. Get your API key at whoisjson.com.

EdgeDNS provides a server that exposes 90 domain intelligence tools covering DNS, email security, website security, SEO analysis, tech stack detection, performance, threat intelligence, network diagnostics, compliance, and reporting.

Hosted MCP DNS utility for querying records through a paid remote server with first-call proof and x402 payment gating.

Check domain health, DNS status, registration age, and get activate/monitor/drop recommendations. Rank up to 10 domains by score. Free — no API key required.

PageSpeed, WHOIS, DNS, SSL checks, and site health analysis for AI agents. 6 tools, free, no API key.

RobotDomainSearch is a domain intelligence API built for AI agents. Check domain availability across 512+ TLDs, get AI-powered valuations with comparable sales data, run WHOIS/RDAP lookups, browse aftermarket listings and auctions, check ENS names, and analyze online name presence — all through a single MCP server. Supports x402 payments for premium APIs.

A remote MCP server deployed on Railway that exposes all 14 Softricks iDig tools to any MCP-compatible AI client. One config entry and your AI assistant has professional DNS diagnostics available in every conversation → https://mcp.softricks.net/sse Add that to Claude Desktop or Cursor, restart, and you can ask things like: "My emails are going to spam for example.com — what's wrong?" "Did my DNS changes propagate yet?" "Is our SSL cert about to expire?" "Run a full security audit on this domain." And your AI will call live DNS infrastructure to answer.

Unstoppable Domains MCP server for AI-powered domain name management. Search domain availability, check pricing, manage your portfolio, configure DNS, list domains for sale on the marketplace, and complete purchases — all through natural language. Supports ICANN/DNS domains (.com, .net, .org, .io, .ai, and 400+ TLDs).

DNS, IP, AS, domain reputation, and Lightning Network intelligence. 44 tools for DNS lookups, reverse DNS, passive DNS, IP reputation, threat intelligence, AS/BGP routing, domain rankings, MAC address lookups, and Bitcoin Lightning Network data. No authentication required.

A comprehensive domain intelligence MCP server with 50+ tools for domain research, DNS analysis, and web infrastructure inspection. Features include domain availability checking across multiple TLDs, WHOIS/RDAP lookups, DNS record analysis and propagation checks, SSL/TLS certificate grading and chain inspection, email security auditing (SPF, DKIM, DMARC), domain reputation scoring, market valuation, tech stack detection, hosting and CDN identification, typosquatting protection, subdomain enumeration via Certificate Transparency logs, IP geolocation, reverse DNS lookups, and more. Connects as a remote MCP server via SSE at https://domscan.net/mcp — no API key required.

Check domain availability and pricing across Porkbun, Namecheap, RDAP, WHOIS. Includes social handle checking for 10 platforms.

Manage Pi-hole with the power of AI A Pi-hole MCP (Model Control Protocol) server implemented in Java that allows AI applications to interact with and manage a Pi-hole instance through standard commands.

A Model Context Protocol (MCP) server for Openprovider.com that allows users to interact with their Openprovider account to perform various domain management actions including checking domain availability, registering domains, managing contacts, and more. All the details in the Github: https://github.com/hichamdotpage/openprovider-mcp

mcp-whoisxmlapi bridges the gap between AI assistants and comprehensive domain intelligence by providing several specialized tools for domain, IP, and DNS analysis, secure token-based authentication for API access, multiple usage options including Docker and native binaries, and flexible integration supporting both stdio and Server-Sent Events (SSE) modes.

Core network security data includes PassiveDNS resolution records, domain and IP registration details, website certificate information, and IOC (Indicators of Compromise) database queries.

网络基础数据，包括passivedns解析数据、域名和IP的注册信息、网站证书、IOC库的查询。

网络基础数据，包括passivedns解析数据、域名和IP的注册信息、网站证书、IOC库的查询。

An MCP server for interacting with the RealtimeRegister API

Gives any LLM the tools to run network commands like ping, traceroute, mtr, HTTP and DNS resolve from any location in the world.

DNS Checker project with GitHub and WhatsApp MCP servers.

MCP Server for AdGuard Home

A Model Context Protocol (MCP) server for Pi-hole

A modular external attack surface mapping tool integrating tools for automated reconnaissance and bug bounty workflows.

Fast MCP integration for NetworksDB API - Query IP addresses, organizations, ASNs, and DNS records using natural language through Model Context Protocol

MCP Server for DNSDumpster Service