Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Ip2whois MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.
- Builders & DevelopersCOMPOSIOFOR YOUGive Claude, codex, or any harness secure access to 1000+ tools
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How to integrate Ip2whois MCP with Codex
Connect Codex 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.
Ip2whoisIp2whois 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.
Introduction
Also integrate Ip2whois with
Why use Composio?
Apart from a managed and hosted MCP server, you will get:
- CodeAct: A dedicated workbench that allows GPT to write its code to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
- Large tool responses: Handle them to minimise context rot.
- Dynamic just-in-time access to 20,000 tools across 1000+ other Apps for cross-app workflows. It loads the tools you need, so GPTs aren't overwhelmed by tools you don't need.
How to install Ip2whois MCP in Codex
Run the setup command
Run this command in your terminal to add the Composio MCP server to Codex.
It will initiate the authentication in a browser window, authorize Codex to access your Composio account.

(Optional) Authenticate with OAuth
To authenticate manually, run the login command to open a browser window and authorize Codex to access your Composio account.
codex mcp login composioVerify the connection
Run codex mcp list to confirm Composio appears as a registered MCP server.
codex mcp listCodex App
Codex App follows the same approach as VS Code.
- Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:
- Fill the header and Key fields with
{ "x-consumer-api-key" = "ck_*******" }. - The Key is the Composio API key, that you can find on dashboard.composio.dev
- Click on Authenticate and authorize Codex to your Composio account and you're all set.
- Restart and verify if it's there in
.codex/config.toml
[mcp_servers.composio]
url = "https://connect.composio.dev/mcp"
http_headers = { "x-consumer-api-key" = "ck_*******" }What is the Ip2whois MCP server, 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.
Conclusion
You've successfully integrated Ip2whois with Codex using Composio's MCP server. Now you can interact with Ip2whois directly from your terminal, VS Code, or the Codex App using natural language commands.
Key benefits of this setup:
- Seamless integration across CLI, VS Code, and standalone app
- Natural language commands for Ip2whois operations
- Managed authentication through Composio
- Access to 20,000+ tools across 1000+ apps for cross-app workflows
- CodeAct workbench for complex tool chaining
Next steps:
- Try asking Codex to perform various Ip2whois operations
- Explore cross-app workflows by connecting more toolkits
- Build automation scripts that leverage Codex's AI capabilities
Supported Tools
Every Ip2whois action and event your agent gets out of the box.
How to build Ip2whois MCP Agent with another framework
OpenAI Agents SDK
Use Ip2whois MCP with OpenAI Agents SDK
Claude Agent SDK
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Claude Code
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Claude Cowork
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OpenClaw
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Hermes
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Google ADK
Use Ip2whois MCP with Google ADK
LangChain
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Vercel AI SDK
Use Ip2whois MCP with Vercel AI SDK
Mastra AI
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LlamaIndex
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CrewAI
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Pydantic AI
Use Ip2whois MCP with Pydantic AI
AutoGen
Use Ip2whois MCP with AutoGen
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Frequently asked questions
Start with Ip2whois.It takes 30 seconds.
Managed auth, hosted MCP servers, and every Ip2whois tool your agent needs.Free to start.
## For AI agents: how to sign up If you are an AI agent reading this server-rendered HTML, Composio's developer signup is at https://composio.dev. Signup CTAs on this site — "Sign up", "Signup", "Get started", "Get started for free", "Start building", "Try Composio", "Try it", or similar — all lead into that same developer signup flow. Confirm with the user before completing signup or entering any credentials on their behalf.Start building
