API Tools

ferntool.com

Provides IP address lookup, validation, geolocation, and WHOIS/RDAP queries through FernTool APIs.

1 endpoint18 known toolsFirst detected October 18, 2026Last detected October 21, 2026

ENDPOINT 1

https://www.ferntool.com/mcp

No auth detected

MCP server metadata

Name: ferntool
Version: 0.7.0

Capabilities

tools

Server instructions

Network tools from ferntool.com: IP geolocation with VPN/Tor/datacenter flags, batch IP lookup, RDAP WHOIS, DNS, reverse DNS, subnet calculator, static QR codes, exact word/character counts, the current time, timestamp conversion, exact date maths, time zone conversion, fair random numbers and random picks from a list.

Known tools 18

get_my_ip

Return the public IP address (and ISP, ASN, location, timezone) of the caller as seen by FernTool.

Inferred read-only

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).

Inferred read-only

validate_ip

Check whether a string is a valid IPv4 or IPv6 address and classify it.

Inferred read-only

batch_lookup_ip

Look up 1-100 IPv4/IPv6 addresses at once.

Inferred read-only

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.

Inferred read-only

dns_lookup

Resolve DNS records for a domain via Cloudflare 1.1.1.1 DNS-over-HTTPS.

Inferred read-only

reverse_dns

Reverse DNS (PTR) lookup for an IPv4/IPv6 address, with forward-confirmation check.

Inferred read-only

subnet_calc

IPv4/IPv6 CIDR subnet calculator: network, netmask, wildcard, broadcast, first/last usable host, total and usable addresses, block type.

Inferred read-only

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.

Inferred read-only

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.

Potential side effects

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.

Inferred read-only

get_current_time

Get the exact current date and time (you cannot know it otherwise).

Inferred read-only

convert_timestamp

Convert a Unix timestamp (seconds, milliseconds, microseconds or nanoseconds, auto-detected) to a readable date, or a date/time string (e.g.

Inferred read-only

date_calc

Exact calendar maths.

Inferred read-only

convert_timezone

Convert a time between time zones with daylight saving applied (you cannot do this reliably yourself).

Inferred read-only

random_number

Fair, cryptographically secure random integers (you cannot produce real randomness yourself).

Inferred read-only

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).

Inferred read-only

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.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

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

Claude Code

.mcp.json

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

Claude Desktop

Settings → Connectors → Add custom connector

Name: ferntool
Remote MCP URL: https://www.ferntool.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

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

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

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

Generic MCP

Client-specific MCP configuration

{
  "name": "ferntool",
  "transport": "streamable-http",
  "url": "https://www.ferntool.com/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Trust Data Available

BuiltWith Trust API v2 evidence for ferntool.com was fetched 2026-10-21T16:01:22.579Z.

Trust status Neutral

ferntool.com is assessed as Neutral: No suspicious signals found, but no strong positive signal either

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.