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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

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

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

[mcp_servers.ip]
url = "https://www.ferntool.com/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ip": {
      "type": "remote",
      "url": "https://www.ferntool.com/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "ip": {
      "type": "http",
      "url": "https://www.ferntool.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=ip&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vd3d3LmZlcm50b29sLmNvbS9tY3AifQ%3D%3D"
}

{
  "servers": {
    "ip": {
      "type": "http",
      "url": "https://www.ferntool.com/mcp"
    }
  }
}

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

extensions:
  "ip":
    enabled: true
    name: "ip"
    type: streamable_http
    uri: "https://www.ferntool.com/mcp"
    timeout: 300

Quality 73 / 100new

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene71 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
fail
tools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: reverse_dns (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_my_ip (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); dns_lookup (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
pass
tools.token_costabout 1,677 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool history recorded for 2 of the 7 days needed

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

17 tools, about 1,677 tokens to load them all · tool set e23b9c4e6e92 · tools last changed 2026-10-19 · checked 2026-10-19 10:52 UTC

Tool changes

2026-10-19random_numberadded
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.
2026-10-19convert_timezoneadded
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 offset, abbreviation, hour difference and whether it is the next/previous day.
2026-10-18date_calcadded
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.
2026-10-18convert_timestampadded
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.
2026-10-18get_current_timeadded
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.
2026-10-17count_wordsadded
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.
2026-10-17make_qr_codeadded
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.
2026-10-16ai_service_statusadded
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.
2026-10-16estimate_ai_costadded
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.

Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 100 / 100

provenance100

liveness100

freshness100

hygiene100

+repository +namespace-matches-repo +dns-namespace +website +reachable +uptime-100% +updated-3d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://www.ferntool.com/mcp` streamable-http	none	yes	100%	212 ms	2025-11-25	2026-10-19

Tools (17)

`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.
`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).
`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.
`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 offset, abbreviation, hour difference and whether it is the next/previous day.
`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.
`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.
`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).
`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.
`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.
`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).
`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.
`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.
`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.
`validate_ip`	Check whether a string is a valid IPv4 or IPv6 address and classify it.
`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.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "com.ferntool/ip",
  "title": "FernTool IP Lookup",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://www.ferntool.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.1.0",
  "repository": {
    "url": "https://github.com/FernTool/ferntool-mcp",
    "source": "github"
  },
  "websiteUrl": "https://www.ferntool.com",
  "description": "IP lookup with VPN/Tor/datacenter flags, batch lookup, WHOIS (RDAP), DNS, reverse DNS, subnet math."
}