WhoisXML API MCP Server

Name: WhoisXML API MCP Server
Author: whoisxmlapi

by whoisxmlapiversion 1.16.1i★ –iComputer or cloud

Registry nameio.github.whois-api-llc/mcp-whoisxmlapi

Install

Overview

Description from the maker (original English)

35 WHOIS, DNS, IP, threat intelligence, email, and bulk tools for AI agents via WhoisXML API.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi2 of 3 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Computer or cloud
Transport: stdio, Streamable HTTP
Category: Chat & email
You need to fill in: WHOISXMLAPI_TOKEN

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 2 of 3 passed
Runs on the maker’s server: what you ask it goes through their server.
You fill in yourself: WHOISXMLAPI_TOKEN

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

Runs in the cloudNothing to install; it connects over the internet
npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://mcp-hosted.whoisxmlapi.com/mcp

Or run it on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "whoisxmlapi": {
      "command": "npx",
      "args": [
        "-y",
        "@whoisxmlapidotcom/mcp-whoisxmlapi"
      ],
      "env": {
        "WHOISXMLAPI_TOKEN": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add --transport http whoisxmlapi https://mcp-hosted.whoisxmlapi.com/mcp

Or run it on your computer

claude mcp add whoisxmlapi --env WHOISXMLAPI_TOKEN=your-value -- npx -y @whoisxmlapidotcom/mcp-whoisxmlapi

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "whoisxmlapi": {
      "url": "https://mcp-hosted.whoisxmlapi.com/mcp"
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "whoisxmlapi": {
      "command": "npx",
      "args": [
        "-y",
        "@whoisxmlapidotcom/mcp-whoisxmlapi"
      ],
      "env": {
        "WHOISXMLAPI_TOKEN": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "whoisxmlapi": {
      "type": "http",
      "url": "https://mcp-hosted.whoisxmlapi.com/mcp"
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "whoisxmlapi": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@whoisxmlapidotcom/mcp-whoisxmlapi"
      ],
      "env": {
        "WHOISXMLAPI_TOKEN": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://mcp-hosted.whoisxmlapi.com/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

WHOISXMLAPI_TOKEN secret required env
WhoisXML API key (get one at https://whoisxmlapi.com)

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

The server asks you to sign in before it lists its tools.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

! Caution
Maker matches the repo
The publisher (whois-api-llc) is not the repo owner (whoisxmlapi); someone else may have listed it
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
✓ Pass
Endpoint responds
Responded in 217 ms (HTTP 401)
✓ Pass
Sign-in with OAuth
Declares OAuth sign-in, so your AI app can take you to log in
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Chat & emaili

More stars than 0% of the other 1784 servers in this category
Published to the registry more recently than 99% of the other 1784 servers in this category
Basic checks equal to or better than 45% of the other 1784 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is WhoisXML API MCP Server safe?

It passed 2 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: WHOISXMLAPI_TOKEN

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.16.1) reached the registry today.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Vexa, emailmd, MCP WhatsApp Cloud

Alternatives

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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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Runs in the cloud★ 2,949Apache-2.0Updated 2 months ago

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emailmd

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Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

Computer or cloud★ 1,385MITUpdated 32 days ago

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MCP WhatsApp Cloud

by codespar

MCP server for WhatsApp Cloud API (Meta) — messages, media, and templates via Graph API

Runs on your computer★ 277MITUpdated 5 months ago

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

WhoisXML API MCP Server

The official WhoisXML API MCP server: 35 first-party tools for WHOIS, DNS, IP geolocation, threat intelligence, typosquatting, email verification, and bulk lookups — in Claude, Cursor, VS Code, LobeChat, or any MCP client.

Documentation: https://mcp.whoisxmlapi.com
Install guide for AI agents: https://mcp.whoisxmlapi.com/llms-install.md
npm package: @whoisxmlapidotcom/mcp-whoisxmlapi
Docker image: whoisxmlapidotcom/mcp-whoisxmlapi
MCP Registry: io.github.whois-api-llc/mcp-whoisxmlapi

This repository is the public listing home for the server. Distribution is via the hosted endpoint, npm, Docker Hub, and the Claude Desktop installer on the Downloads page; the implementation source is maintained privately by Whois API, Inc.

Hosted endpoint (no install)

Connect any remote-capable MCP client to the hosted server — authentication is via OAuth with your WhoisXML API key:

https://mcp-hosted.whoisxmlapi.com/mcp

"mcpServers": { "whoisxmlapi": { "url": "https://mcp-hosted.whoisxmlapi.com/mcp" } } }

Run locally

Requires a WhoisXML API key — get one at https://whoisxmlapi.com.

npm:

"mcpServers": { "whoisxmlapi": { "command": "npx", "args": ["-y", "@whoisxmlapidotcom/mcp-whoisxmlapi"], "env": { "WHOISXMLAPI_TOKEN": "at_YOUR_KEY" } } } }

Docker:

docker run -i --rm -e WHOISXMLAPI_TOKEN=at_YOUR_KEY whoisxmlapidotcom/mcp-whoisxmlapi

Claude Desktop (macOS and Windows):

From 1.13.0, each release ships a one-file Claude Desktop installer, mcp-whoisxmlapi- .mcpb. Download it from https://mcp.whoisxmlapi.com/downloads, open it, and enter your WhoisXML API key when Claude Desktop asks for it.

Tools (35)

Domain intelligence

Tool	What it does
`whois`	Current WHOIS/RDAP registration data for a domain — registrar, dates, nameservers, status, contacts.
`whois_history`	Full timeline of WHOIS changes — ownership transfers, registrar moves, nameserver swaps.
`domain_info`	Enriched WHOIS profile combining current + historical records to fill redacted fields.
`reverse_whois`	Every domain whose WHOIS record contains a free-text term (name, email, org, address).
`reverse_whois_advanced`	Field-specific WHOIS searches (e.g. `RegistrantContact.Organization`), up to 4 terms.
`domain_reputation`	0–100 trust score from live infrastructure and configuration checks.
`typosquatting`	Check whether a domain belongs to a typosquatting group, or expand the full group.
`categorization`	Classify a domain into IAB Content Taxonomy v3.1 categories.

DNS & infrastructure

Tool	What it does
`dns_lookup`	Current DNS records — A, AAAA, MX, NS, SOA, TXT, CNAME, PTR, SRV, CAA, DS, DNSKEY, or all.
`dns_history`	Historical DNS records (forward) or domains historically on an IP (reverse).
`reverse_dns`	Search DNS records by pattern and return matching domains.
`reverse_ip`	Every domain currently pointing at an IP, with first-/last-seen dates.
`reverse_mx`	Every domain using a specific MX server.
`reverse_ns`	Every domain delegated to a specific nameserver.
`subdomain_lookup`	Enumerate a domain's known subdomains with seen timestamps, paging past the 10,000-per-request cap.
`domain_and_subdomain_discovery`	Domains/subdomains of any age containing search terms (wildcards supported; `since` filters by first-seen date).
`ssl_certificates`	TLS certificate details — issuer, validity, SANs, chain trust.

IP intelligence

Tool	What it does
`ipgeolocation`	Country, region, city, ISP, ASN for an IP, domain, or email.
`ip_netblocks`	CIDR ranges, ASN, organisation, and each block's last-modified date for IP/ASN/org.
`vpn_proxy_detection`	Whether an IP is a known VPN, proxy, Tor exit, relay, hosting or CDN address, with a 0–100 risk score.

Threat & brand protection

Tool	What it does
`threat_intelligence`	Check a domain, URL, IP, CIDR, or file hash against malware/phishing/spam/botnet feeds.
`brand_alert`	Newly added/dropped/updated domains containing brand terms — typosquat & lookalike monitoring.
`registrant_alert`	New/changed domains whose WHOIS registrant fields match search terms.

Email

Tool	What it does
`email_verification`	Syntax, MX, and SMTP deliverability checks; flags disposable/free/catch-all.
`disposable_email_check`	Boolean verdict on disposable/temporary email providers.

Screenshots

Tool	What it does
`website_screenshot`	Capture a web page screenshot, returned as a native image content block.

Bulk

Tool	What it does
`bulk_whois`	WHOIS for up to 10,000 domains in one call (native bulk, async `job_id` if long-running).
`bulk_email_verification`	Email verification for up to 10,000 addresses (native bulk, async if long-running).
`bulk_vpn_proxy_detection`	VPN & proxy detection for up to 100 IPs in one call (native batch, always inline; Starter plan or higher).
`bulk_dns_lookup`	DNS lookups for up to 200 domains, fanned out concurrently.
`bulk_ip_geolocation`	IP geolocation for up to 200 IPs, fanned out concurrently.
`bulk_subdomain_lookup`	Subdomain discovery for up to 200 apex domains.
`bulk_job_status`	Progress of an in-flight bulk job.
`bulk_job_results`	Full per-input results of a completed bulk job.

Account

Tool	What it does
`account_balance`	Credits left on each product of your WhoisXML account, and which tools spend them. Free.

Example prompts

*"Look up the WHOIS for suspicious-domain.com and tell me if it's suspicious."*
*"Find all subdomains of example.com and check their DNS history."*
*"Check the threat intelligence reputation of 203.0.113.7 and what's hosted there."*

WhoisXML API MCP Server

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Or run it on your computer

Or run it on your computer

Or run it on your computer

Or run it on your computer

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Chat & emaili

Common questions

Alternatives

Vexa

emailmd

MCP WhatsApp Cloud

README from the maker

WhoisXML API MCP Server

Hosted endpoint (no install)

Run locally

Tools (35)

Domain intelligence

DNS & infrastructure

IP intelligence

Threat & brand protection

Email

Screenshots

Bulk

Account

Example prompts