All servers · Cloud & networking · Utilities

FernTool IP Lookup

com.ferntool/ip · v1.1.0

Measured by MCP Station

Description written by the publisher, not verified

IP lookup with VPN/Tor/datacenter flags, batch lookup, WHOIS (RDAP), DNS, reverse DNS, subnet math.

Connect

claude mcp add --transport http ip https://www.ferntool.com/mcp

{
  "mcpServers": {
    "ip": {
      "url": "https://www.ferntool.com/mcp"
    }
  }
}

Tools as reported by the server

• get_my_ip
  Return the public IP address (and ISP, ASN, location, timezone) of the caller as seen by FernTool. Note: for remote agents this is the IP of the machine calling the MCP server.
• lookup_ip
  Validate an IPv4/IPv6 address and return its version, scope (public/private/loopback/...), country, ASN and network owner (DB-IP Lite + IPtoASN data).
• validate_ip
  Check whether a string is a valid IPv4 or IPv6 address and classify it.
• batch_lookup_ip
  Look up 1-100 IPv4/IPv6 addresses at once. Each result has version, scope, country, timezone, ASN, network owner and flags (is_tor, is_datacenter, provider).
• whois_lookup
  WHOIS via RDAP for a domain (registrar, created/expiry dates, status, nameservers, DNSSEC), an IP address (network name, range, owner org, country, abuse contact) or an ASN like AS13335.
• dns_lookup
  Resolve DNS records for a domain via Cloudflare 1.1.1.1 DNS-over-HTTPS. Types: A, AAAA, MX, TXT, NS, CNAME, SOA (default: all).
• reverse_dns
  Reverse DNS (PTR) lookup for an IPv4/IPv6 address, with forward-confirmation check.
• subnet_calc
  IPv4/IPv6 CIDR subnet calculator: network, netmask, wildcard, broadcast, first/last usable host, total and usable addresses, block type.
• estimate_ai_cost
  Estimate token count and USD API cost of a text across major AI models (OpenAI GPT, Anthropic Claude, Google Gemini), and whether it fits each context window. Token counts are approximate. Pass text, or tokens directly.
• make_qr_code
  Create a static QR code (never expires) for a URL, Wi-Fi string (WIFI:T:WPA;S:name;P:pass;;), mailto:, tel: or any text up to 2000 characters. Returns an SVG string plus a ferntool.com image URL that renders the same code.
• count_words
  Exactly count words, characters (with and without spaces), sentences and paragraphs in a text, with reading/speaking time and the most repeated words. Use this instead of estimating counts yourself.
• get_current_time
  Get the exact current date and time (you cannot know it otherwise). Returns Unix seconds and milliseconds, ISO 8601 in UTC and in the requested IANA time zone, weekday, ISO week and day of year.
• convert_timestamp
  Convert a Unix timestamp (seconds, milliseconds, microseconds or nanoseconds, auto-detected) to a readable date, or a date/time string (e.g. 2026-12-25 09:00, read in the given time zone unless it has its own offset) to a Unix timestamp. Also returns weekday, ISO week and how long ago or until.
• date_calc
  Exact calendar maths. With end: days between two dates (plus weeks, months+days, weekdays Mon-Fri, weekend days). With add_days/add_weeks/add_months/add_years (negative to subtract): the resulting date and weekday; business_days=true skips weekends. Use this instead of counting days yourself.
• convert_timezone
  Convert a time between time zones with daylight saving applied (you cannot do this reliably yourself). from/to accept IANA zones (Africa/Johannesburg), common abbreviations (SAST, EST, PST, GMT, CET, IST=India, CST=US Central) or big cities. Omit time for now. Returns each local date, time, UTC offs
• random_number
  Fair, cryptographically secure random integers (you cannot produce real randomness yourself). min and max are inclusive. unique=true for no repeats (raffles, lotto, picking winners). For a coin flip use min 0, max 1; for dice use min 1, max 6.
• pick_random
  Fairly pick random winners from a list, shuffle a list, or split people into random even teams, using a cryptographically secure generator (you cannot choose fairly at random yourself). Use for giveaways, raffles, "who goes first", random order or team splits. An item listed twice has twice the chan
• check_dns_propagation
  Check whether a DNS change has spread: asks the domain's own authoritative name server (when reachable) and 8 big public resolvers (Cloudflare, Google, OpenDNS, AdGuard, NextDNS, Control D, CleanBrowsing, AliDNS) over DoH, marks which are up to date, and gives the remaining cache time (TTL) of stale
• check_email_security
  Can someone fake (spoof) email from a domain? Reads SPF (counts the 10 DNS-lookup limit, follows includes), DMARC (policy, pct, reports, inherited from the parent domain) and DKIM keys (common selectors, or the one given), detects the email provider from MX, and returns a plain verdict (protected /
• check_website_status
  Is a website down? Resolves its DNS and loads the URL once (10 s timeout) from FernTool's Cloudflare edge, then returns verdict (up/down), reason (ok, blocked_bot, page_not_found, server_error, timeout, tls, dns_nxdomain...), HTTP status, response time, final URL after redirects and server country/n
• ai_service_status
  Live status of AI services (ChatGPT/OpenAI, Claude, Gemini API, GitHub Copilot, Perplexity, Cohere) read from their official status pages, cached ~60s. level is up, degraded, down or unknown.

Tool changes

• 2026-10-24: get_my_ip, lookup_ip, validate_ip, batch_lookup_ip, whois_lookup, dns_lookup, reverse_dns, subnet_calc, estimate_ai_cost, make_qr_code, count_words, get_current_time
• 2026-10-23: get_my_ip, lookup_ip, validate_ip, batch_lookup_ip, whois_lookup, dns_lookup, reverse_dns, subnet_calc, estimate_ai_cost, make_qr_code, count_words, get_current_time
• 2026-10-21: get_my_ip, lookup_ip, validate_ip, batch_lookup_ip, whois_lookup, dns_lookup, reverse_dns, subnet_calc, estimate_ai_cost, make_qr_code, count_words, get_current_time
• 2026-10-20: get_my_ip, lookup_ip, validate_ip, batch_lookup_ip, whois_lookup, dns_lookup, reverse_dns, subnet_calc, estimate_ai_cost, make_qr_code, count_words, get_current_time
• 2026-10-18: get_my_ip, lookup_ip, validate_ip, batch_lookup_ip, whois_lookup, dns_lookup, reverse_dns, subnet_calc, estimate_ai_cost, make_qr_code, count_words, get_current_time
• 2026-10-18: get_my_ip, lookup_ip, validate_ip, batch_lookup_ip, whois_lookup, dns_lookup, reverse_dns, subnet_calc, estimate_ai_cost, make_qr_code, count_words, ai_service_status
• 2026-10-17: get_my_ip, lookup_ip, validate_ip, batch_lookup_ip, whois_lookup, dns_lookup, reverse_dns, subnet_calc, estimate_ai_cost, ai_service_status

Repository · Website · JSON · Text for agents · Registry updated 2026-10-16