FernTool Network Tools
24 free tools: IP/VPN lookup, WHOIS, DNS, SPF/DMARC, site up/down, redirects, time zones.
Connector by ferntool.comOfficial · Domain verified by the MCP Registry
Install
Works with Claude Code, VS Code, Cursor, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install connector/ferntool-com-ip
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
Remote endpoint
https://www.ferntool.com/mcpRemote (HTTP)
Get the weekly diff
The weekly diff: one email a week with new agent tools, notable updates and grade changes, plus security alerts for tools you follow. Double opt-in, one-click unsubscribe.
About
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
Permissions
What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.
- Tools
- 16 read · 1 write · 0 delete · 6 not yet classified
- Secrets
- None asked for
- Install scripts
- Nothing to install (hosted)
- Runs as
- Hosted (remote endpoint)
Tools by what they do 23
From the running server's own tool list (tools/list) on Oct 25, 2026.
Read 16 · Look things up without changing anything.
ai_service_statusbatch_lookup_ipcheck_dns_propagationcheck_email_securitycheck_website_legitcheck_website_statusconvert_timestampconvert_timezonecount_wordsdns_lookupestimate_ai_costget_current_time
Show 4 more tools
get_my_iplookup_ipvalidate_ipwhois_lookup
Write 1 · Create, change, send or run things.
make_qr_code
Not yet classified 6 · We could not tell from the name and description.
date_calcpick_randomrandom_numberreverse_dnssubnet_calctrace_redirects
Network hosts it talks to 1
ferntool.com· found in remote endpoint, install command
Tools (23)
As the server listed them on Oct 25, 2026. Descriptions are the server’s own words; hidden characters are shown as [U+…].
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.
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).
check_dns_propagationCheck 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 answers.
check_email_securityCan 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 / partial / unprotected) plus the exact TXT records to add.
check_website_legitIs this website legit or a scam? Follows the URL (redirects included) and returns plain-language warning signs: domain age from RDAP (scam shops are usually days or weeks old), look-alike brand names (banks, SARS, couriers, Takealot, PayPal, Apple…), risky domain endings and scam words, look-alike letters, HTTPS, whether the domain receives email and has DMARC. verdict: no_signs, mostly_ok, caution or likely_scam. Warning signs only; not a malware scan.
check_website_statusIs 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/network. One vantage point only; results cached 30 s.
convert_timestampConvert 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.
convert_timezoneConvert 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 offset, abbreviation, hour difference and whether it is the next/previous day.
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.
date_calcExact 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.
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).
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.
get_current_timeGet 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.
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).
Show 8 more tools
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.
pick_randomFairly 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 chance unless dedupe=true.
random_numberFair, 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.
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.
trace_redirectsWhere does a link really go? Follows a URL (short links like bit.ly, tracking links, QR code links) hop by hop without a browser: every redirect with status code (301/302/307/308/meta refresh), final URL and page title, plus warning signs (ends on a different site, domain registered < 30 days ago, punycode look-alike name, bare IP, no HTTPS, loops, long chains) and a copy of the final URL with tracking parameters removed. Does not scan pages for malware. Max 10 hops; cached 60 s.
validate_ipCheck whether a string is a valid IPv4 or IPv6 address and classify it.
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.
Signals
- Last release
- Oct 26, 2026 (3 days ago)
- Repository
- Not found on GitHub (deleted or private)
Details
- Registry name
com.ferntool/ip- Version
- 1.2.0
- Auth
- Auth not stated
- License
- License unknown
- Website
- www.ferntool.com/api
- First seen
- Oct 24, 2026
- Last checked
- Oct 26, 2026
- Source
- Official MCP Registry
Cite this page
FernTool Network Tools MCP server. Agent Mart. https://agentmart.dev/connectors/ferntool-com-ip (last updated 2026-10-26)