MCP SERVER

Prefix WhoIs

Live BGP routing table and registry lookups: IP origin, ASN prefixes, transit, org search.

Search & researchmcp

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About Prefix WhoIs

Live BGP routing table and registry lookups: IP origin, ASN prefixes, transit, org search.

How to connect

What is the endpoint and how does it run?

Hosted remote server over Streamable HTTP at https://pwhois.org/mcp.

How do I add Prefix WhoIs to Claude Code, Cursor or Claude Desktop?

One command, any client (npm)

npx ruagentic add prefix-whois

Claude Code

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

Cursor, Windsurf and other clients that accept a URL (mcp.json)

{
  "mcpServers": {
    "prefix-whois": {
      "url": "https://pwhois.org/mcp"
    }
  }
}

Claude Desktop (claude_desktop_config.json, via the mcp-remote bridge)

{
  "mcpServers": {
    "prefix-whois": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://pwhois.org/mcp"
      ]
    }
  }
}

Snippets are generated from the published endpoint; the server name prefix-whois is only a label you can change. Add the credentials the publisher documents.

Project website

REMOTE ENDPOINThttps://pwhois.org/mcpUse this URL in a compatible client. Follow the provider’s authentication instructions.

Questions and answers

What is Prefix WhoIs?

Prefix WhoIs is an MCP server in the Search & research category. Live BGP routing table and registry lookups: IP origin, ASN prefixes, transit, org search.

How do I connect to Prefix WhoIs?

Hosted remote server over Streamable HTTP at https://pwhois.org/mcp. The listing page has ready-made snippets for Claude Code, Cursor and Claude Desktop.

Where is Prefix WhoIs published?

Its homepage is https://pwhois.org/mcp.who. RUAGENTIC read these details from Official MCP Registry on October 5, 2026 and did not install or run the project.

Sources and checks

View the source

Source information collected October 5, 2026.

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