FernTool IP Lookup
IP lookup with VPN/Tor/datacenter flags, batch lookup, WHOIS (RDAP), DNS, reverse DNS, subnet math.
Connect it
Settings → Connectors → Add custom connector
URL: https://www.ferntool.com/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://www.ferntool.com/mcp{
"mcpServers": {
"ip": {
"url": "https://www.ferntool.com/mcp"
}
}
}claude mcp add --transport http ip https://www.ferntool.com/mcp{
"servers": {
"ip": {
"type": "http",
"url": "https://www.ferntool.com/mcp"
}
}
}12 tools, verified live
get_my_ipReturn 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_ipValidate an IPv4/IPv6 address and return its version, scope (public/private/loopback/...), country, ASN and network owner (DB-IP Lite + IPtoASN data).
validate_ipCheck whether a string is a valid IPv4 or IPv6 address and classify it.
batch_lookup_ipLook 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_lookupWHOIS 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_lookupResolve 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_dnsReverse DNS (PTR) lookup for an IPv4/IPv6 address, with forward-confirmation check.
subnet_calcIPv4/IPv6 CIDR subnet calculator: network, netmask, wildcard, broadcast, first/last usable host, total and usable addresses, block type.
estimate_ai_costEstimate 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_codeCreate 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_wordsExactly 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.
ai_service_statusLive 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.
Alternatives in Other
Compare →CAContact AffordanceA
Check how to contact a business website, and whether that contact path actually works.
MeasureA
Get to the root cause of mobile app crashes, errors & slow traces with Measure MCP
OhMyWindA
Sailing passage planner for any coast, with high-precision tides on the French Atlantic.
UPUNIDROIT Principles 2016A
UNIDROIT Principles 2016 as executable rules: closed questions answered with grounds and source text
HemmaBo Host Booking EngineA
6 runtime tools: 2 HemmaBo tools, 2 host onboarding tools, and 2 VRP verification tools. Not an OTA.
Fair Value MCP ServerA
Valuation MCP: DCF/NAV/CCA, WACC, derivatives, credit risk, fixed income, structured products.