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How to connect Ip2whois to Claude

Connect Claude Web, Desktop and Cowork to Ip2whois MCP. Get whois info for example.com, find domains hosted on 8.8.8.8, and more using natural language, with authentication handled for you.

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Ip2whois is a WHOIS lookup API delivering detailed domain registration info and metadata. Get instant access to creation dates, registrant contacts, and nameservers for any domain.

2 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Ip2whois account to Claude via Composio Connect, enabling it to get WHOIS info for example.com, find domains hosted on 8.8.8.8, check domain expiration date for mysite.org, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Ip2whois with

Claude CodeOpenAI Agents SDKClaude Agent SDKCodexOpenClawHermesAtomic AgentGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Ip2whois to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Ip2whois account

Back in Claude, ask it to connect to Ip2whois or give it any Ip2whois-related task.

For example, ask Claude to:

  • "Get WHOIS info for example.com"
  • "Find domains hosted on 8.8.8.8"
  • "Check domain expiration date for mysite.org"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Ip2whois account is ready to use.

What is the Ip2whois Claude Connector, and what's possible with it?

The Ip2whois MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Ip2whois account. It provides structured and secure access to domain and IP WHOIS data, so your agent can perform actions like retrieving domain registration info, checking domain ages, viewing registrant contacts, and discovering domains hosted on specific IPs.

  • Comprehensive domain WHOIS lookup: Instantly fetch key details about any domain, including creation and expiration dates, registrar information, and domain age.
  • Registrant contact information retrieval: Let your agent pull up contact info for domain owners, admins, and technical contacts as needed.
  • Nameserver and DNS data access: Easily get the nameservers associated with a domain for network or security audits.
  • Hosted domains discovery by IP: Find all domains currently hosted on a particular IP address, helping with investigation or infrastructure mapping.

Troubleshooting

1. Why does Claude not use the Composio connector for Ip2whois?

The connector can show as connected, but Claude must use it in each Ip2whois conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Ip2whois again.

2. Why does Claude show an MCP server error before Ip2whois connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Ip2whois.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Ip2whois.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Ip2whois authorization link not work?

The Composio connector is one server. Your Ip2whois account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Ip2whois connection.
  • Composio creates a fresh Ip2whois authorization link.
  • Open that link in your browser and finish the Ip2whois sign-in.

4. Why do Ip2whois actions fail after they worked before?

The Ip2whois connection can expire or lose permission.

  • Ask Claude to inspect the Ip2whois connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Ip2whois account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Ip2whois.
  • If the action still fails with a permission error, check that the connected account has that permission in Ip2whois itself.

5. How do I switch to a different Ip2whois account?

Claude can manage the Ip2whois connection for you.

  • Ask Claude to disconnect or delete the current Ip2whois account.
  • Ask Claude to connect Ip2whois again.
  • Open the new Composio authorization link for Ip2whois.
  • Sign in with the other Ip2whois account in the browser.
  • After the account connects, ask Claude to retry the Ip2whois task.

6. Why is my Ip2whois connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Ip2whois connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Ip2whois tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Ip2whois.
TOOLS

Supported Tools

Every Ip2whois action and event your agent gets out of the box.

IP2WHOIS Domain Lookup

Retrieves WHOIS registration data for any domain.

Hosted Domains Lookup

Tool to retrieve hosted domains for a given IP address.

FRAMEWORKS

How to build Ip2whois MCP Agent with another framework

Claude Code logo

Claude Code

Use Ip2whois MCP with Claude Code

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Ip2whois MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Ip2whois MCP with Claude Agent SDK

Codex logo

Codex

Use Ip2whois MCP with Codex

OpenClaw logo

OpenClaw

Use Ip2whois MCP with OpenClaw

Hermes logo

Hermes

Use Ip2whois MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Ip2whois MCP with Atomic Agent

Google ADK logo

Google ADK

Use Ip2whois MCP with Google ADK

LangChain logo

LangChain

Use Ip2whois MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Ip2whois MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Ip2whois MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Ip2whois MCP with LlamaIndex

CrewAI logo

CrewAI

Use Ip2whois MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Ip2whois MCP with Pydantic AI

AutoGen logo

AutoGen

Use Ip2whois MCP with AutoGen

FAQ

Frequently asked questions

With a standalone Ip2whois MCP server, the agents and LLMs can only access a fixed set of Ip2whois tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Ip2whois and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Ip2whois tools.

Yes, absolutely. You can configure which Ip2whois scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Ip2whois data and credentials are handled as safely as possible.

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