Lifestyle · Official remote MCP server

The Prefix WhoIs MCP server,
connected in one click.

Live BGP routing table and registry lookups: IP origin, ASN prefixes, transit, org search. Connect the official Prefix WhoIs MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.

Connect Prefix WhoIs free How it works

Free to start · No credit card · No hosting needed

Use this server

Add Prefix WhoIs to your AI in one minute

Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.

claude mcp add --transport http prefix-whois https://pwhois.org/mcp/

Run in your terminal, then restart Claude Code. The client will open the vendor's sign-in the first time you use it.

Prefix WhoIs · https://pwhois.org/mcp/

What you can do

What your AI can do with Prefix WhoIs

Real prompts you can type the moment it's connected — no setup, no docs to read.

“What can Prefix WhoIs do for me?”

“Show me the tools Prefix WhoIs exposes.”

Security check

How secure is the Prefix WhoIs MCP server?

Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Prefix WhoIs holds up.

✓ Verified directory serverPrefix WhoIs · pwhois.org

Official endpoint

Operated by Prefix WhoIs (pwhois.org) at its documented MCP endpoint — not a third-party mirror or community re-host.

OAuth sign-in — your account, your rules

You grant access from your own Prefix WhoIs account and can revoke it there at any time. gate never sees your password.

Scanned before it goes live

gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.

Watched for drift

If Prefix WhoIs adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.

Prefix WhoIs's server requires OAuth, so it can't be scanned anonymously — connect it in gate and the same scan runs automatically before it goes live.

How it works

Connected in three steps

Connect your gate

Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.

Pick Prefix WhoIs

Choose Prefix WhoIs in the gate directory. Sign in to your Prefix WhoIs account to grant access.

Use it anywhere

Prefix WhoIs's tools are live in every AI client you've connected — with rules and logging built in.

Connect Prefix WhoIs free

Free to start · No credit card · No hosting needed

Author

Who runs the Prefix WhoIs MCP server?

pwhois.org

Homepage More servers from pwhois.org →

Own this server? Claim the listing →

Server facts

The Prefix WhoIs MCP server at a glance

Endpointhttps://pwhois.org/mcp/

Operated byPrefix WhoIs (pwhois.org)

CategoryLifestyle

Sign-inOAuth — your account, revocable anytime

Available in gateYes — one-click connect

Works withClaude, ChatGPT, Cursor & any MCP client

FAQ

Questions, answered

Is there an official Prefix WhoIs MCP server?

Yes — Prefix WhoIs operates its own remote MCP server at pwhois.org. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.

How do I connect Prefix WhoIs to Claude or ChatGPT?

Add gate's gateway URL to your AI client once, then pick Prefix WhoIs in the directory. You sign in to Prefix WhoIs via OAuth to grant access. From then on, Prefix WhoIs's tools are available in every client you've connected to gate.

Do I need to host anything?

No. Prefix WhoIs runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.

Is the Prefix WhoIs MCP server safe to connect?

It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.