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WhoisFreaks

io.github.WhoisFreaks/whoisfreaks-mcp-server · v2.1.0

WHOIS, DNS, IP geolocation, SSL and domain intelligence from the WhoisFreaks API.

Connect Remote server

Terminal
claude mcp add --transport http whoisfreaks-mcp-server https://mcp.whoisfreaks.com/mcp --header "Authorization: Bearer <YOUR_API_KEY>"
~/.cursor/mcp.json
{
  "mcpServers": {
    "whoisfreaks-mcp-server": {
      "url": "https://mcp.whoisfreaks.com/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "whoisfreaks-mcp-server": {
      "type": "http",
      "url": "https://mcp.whoisfreaks.com/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://mcp.whoisfreaks.com/mcp

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools 22 found in our last check

  • liveWhoisLookup

    Get the current WHOIS registration record for a domain, queried live from WHOIS servers and RDAP. Use this to find who owns a domain now, its registrar, creation and expiry dates, name servers or status. For past owners and changes over time use whoisHistory. For many domains at…

  • bulkWhoisLookup

    Get the current WHOIS records of up to 100 domains in one request, queried live. Use this instead of calling liveWhoisLookup many times, for example to audit a domain portfolio or enrich a list of domains taken from logs. For one domain use liveWhoisLookup. Lists of more than 10…

  • whoisHistory

    Get the historical WHOIS records of a domain: deduplicated snapshots ordered from newest to oldest, going back as far as 1986. Use this to see previous owners, registrar transfers, past contacts, name server changes, or when a domain expired and was re-registered. For only the c…

  • reverseWhoisLookup

    Find domains whose WHOIS records contain a given email, registrant name or company, or whose name contains a keyword, across 4.6 billion WHOIS records. Use this to map everything a person or organisation has registered, for example when investigating a phishing actor or auditing…

  • ipWhoisLookup

    Get the registry WHOIS record for an IPv4 or IPv6 address: who the IP block is allocated to. Use this to find the owning organisation, CIDR range, AS number and abuse contact of an IP, for example to report abuse. For city, ISP and coordinates use ipGeolocation. For VPN, proxy,…

  • asnWhoisLookup

    Get the registry WHOIS record for an autonomous system (ASN): the network operator behind a set of IP routes. Use this when you have an AS number (for example from ipWhoisLookup or ipGeolocation output) and need the operator's name, country, contacts or the IP prefixes it announ…

  • dnsLookup

    Resolve a domain's current DNS records live: A, AAAA, MX, NS, CNAME, SOA, TXT and SPF. With ipAddress it also does a reverse (PTR) lookup of an IP address. Use this to see where a domain points now: its IP addresses, mail servers, name servers, or TXT records such as SPF, DKIM a…

  • bulkDnsLookup

    Resolve the current DNS records of up to 100 domains, and the PTR records of up to 100 IP addresses, in one request. Use this instead of calling dnsLookup many times, for example to check the mail servers of a list of domains or to name a list of IPs from logs. Provide domainNam…

  • dnsHistory

    Get the historical DNS records of a domain, showing how its A, MX, NS and other records changed over time. Use this for investigations and migrations: earlier hosting IPs (for example the origin IP behind a CDN), past mail servers, or name server changes. For the current records…

  • reverseDnsLookup

    Find domains whose DNS records point to a given value: an IP address or range, mail server, name server or other record value. Use this to see which other sites share a hosting IP, which domains use a mail server or name server, or to map infrastructure during an investigation.…

  • ipGeolocation

    Look up where an IPv4 or IPv6 address is located and which network it belongs to. Use this for country, region, city, coordinates, ISP, ASN, connection type and local currency, for example to localise a visitor or see where a server is hosted. The location is an estimate and is…

  • bulkIpGeolocation

    Look up the location and network of up to 100 IPv4 or IPv6 addresses in one request. Use this instead of calling ipGeolocation many times, for example to map the visitors or attackers in a log. For one IP use ipGeolocation. For threat signals on many IPs use bulkIpSecurity. Cost…

  • ipSecurity

    Check the reputation of an IPv4 or IPv6 address: VPN, proxy (including residential), Tor exit node, privacy relay, spam and known-attacker activity, bots by type and operator, and whether it belongs to a cloud provider or a corporate secure web gateway. Use this for fraud checks…

  • bulkIpSecurity

    Check the reputation of up to 100 IPv4 or IPv6 addresses in one request: VPN, proxy, Tor, relay, spam, known-attacker and bot signals for each. Use this instead of calling ipSecurity many times, for example to screen the IPs behind a wave of sign-ups or failed logins. For one IP…

  • domainAvailability

    Check whether a domain name is available to register, using both DNS and WHOIS data. Use this before suggesting or buying a domain name. Set suggestions=true to also get alternative names with other extensions, each marked available or not; count sets how many (5-100). To check…

  • bulkDomainAvailability

    Check whether many domain names can be registered, in one request: either up to 100 full domain names, or one name across up to 100 extensions (TLDs). Use this to pick an available name across extensions such as .com, .io and .ai (pass domain and tlds), or to check a list of can…

  • subdomainLookup

    List the known subdomains of a domain (for example api.example.com or mail.example.com) from the WhoisFreaks subdomain database. Use this for attack-surface mapping, finding exposed services, or auditing a company's hosts. It looks up subdomains already discovered by WhoisFreaks…

  • domainDiscovery

    Find registered domains that look like typo variants of a brand name (typosquats such as paypa1.com or paypal-secure.net), or that match a wildcard pattern, across more than 1,500 TLDs. Use this for brand protection, phishing detection, or tracking look-alike registrations. Prov…

  • subdomainTyposquatting

    Find subdomains, on any domain, that contain a typo variant of a brand name or match a wildcard pattern as one of their labels, for example login.paypa1.example.com. Phishing pages often hide a brand inside a subdomain of an unrelated domain, so these hosts never show up in doma…

  • domainReputation

    Assess how risky a domain is, live: a verdict (safe, low_risk, suspicious, malicious or unknown) with its confidence and severity, a trust score with the positive and negative signals behind it, DGA (algorithmically generated name) analysis, matches in threat-intelligence feeds,…

  • sslLookup

    Get the SSL/TLS certificate a domain currently serves, fetched live. Use this to check expiry dates, the issuer, covered hostnames (SANs) or key type, or to debug HTTPS errors. Set chain=true to include intermediate and root certificates when diagnosing trust-chain problems, and…

  • apiKeyUsage

    Show how much of the WhoisFreaks API key's allowance is used: pay-as-you-go credits bought and used, and the subscription's status, request limit, requests used and surcharge requests. Use this before a large job (a bulk lookup, many pages of reverse WHOIS or typosquatting resul…

Headers

NameDescription
Authorization
Required, secret
Your WhoisFreaks API key as a bearer token. Get one free at https://billing.whoisfreaks.com/signup

Details

Endpointhttps://mcp.whoisfreaks.com/mcp (Streamable HTTP)
First published13 Nov 2026
Last updated13 Nov 2026
Registry nameio.github.WhoisFreaks/whoisfreaks-mcp-server

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