Prefix WhoIs
by pwhois.org · org.pwhois/pwhois
Live BGP routing table and registry lookups: IP origin, ASN prefixes, transit, org search.
- Category
- Search and web data
- Connection
- Remote (HTTP)
- Tools
- Shown after sign-in
- Status
- Online, needs sign-in
Connect it to your AI
Claude Code
claude mcp add --transport http pwhois https://pwhois.org/mcp/Claude, ChatGPT, Cursor and other apps
Add it as a custom connector with this URL (Streamable HTTP):
https://pwhois.org/mcp/Cursor, VS Code and other apps (mcp.json)
{
"mcpServers": {
"pwhois": {
"url": "https://pwhois.org/mcp/"
}
}
}Questions
What is the Prefix WhoIs MCP server?
Live BGP routing table and registry lookups: IP origin, ASN prefixes, transit, org search. It is made by pwhois.org and listed in the official MCP Registry as org.pwhois/pwhois. MCP (Model Context Protocol) is the open standard that lets AI apps like Claude, ChatGPT and Cursor use outside tools.
How do I add Prefix WhoIs to Claude?
In the Claude app or claude.ai, open Settings, then Connectors, choose "Add custom connector" and paste https://pwhois.org/mcp/. In Claude Code, run: claude mcp add --transport http pwhois https://pwhois.org/mcp/
How do I add Prefix WhoIs to ChatGPT?
ChatGPT can use remote MCP servers as connectors. In ChatGPT settings, under Apps and Connectors, turn on developer mode if asked, create a new connector and paste https://pwhois.org/mcp/.
How do I add Prefix WhoIs to Cursor?
Open Cursor settings, go to MCP, choose "Add new MCP server" (or edit ~/.cursor/mcp.json) and add: { "mcpServers": { "pwhois": { "url": "https://pwhois.org/mcp/" } } }
Does Prefix WhoIs work right now?
It is online and asks you to sign in before it lists its tools, which is normal for servers tied to an account.
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Markdown (GitHub README)
[](https://chen.media/mcp/org-pwhois-pwhois)HTML (switches to dark mode on its own)
<a href="https://chen.media/mcp/org-pwhois-pwhois"><picture><source media="(prefers-color-scheme: dark)" srcset="https://chen.media/mcp/badge/org-pwhois-pwhois.svg?theme=dark"><img src="https://chen.media/mcp/badge/org-pwhois-pwhois.svg" alt="Listed on chen.media/mcp" height="40"></picture></a>More in Search and web data
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