MAC Address Lookup

by mac.jasontally.com · com.jasontally.mac/mcp

Find the organization behind a MAC address or OUI prefix in the IEEE registries. No auth, no key.

OnlineRemote
WebsiteSource code
Category
Security
Connection
Remote (HTTP)
Tools
1 reported
Status
Online

Connect it to your AI

Claude Code

claude mcp add --transport http mcp https://mac.jasontally.com/mcp

Claude, ChatGPT, Cursor and other apps

Add it as a custom connector with this URL (Streamable HTTP):

https://mac.jasontally.com/mcp

Cursor, VS Code and other apps (mcp.json)

{
  "mcpServers": {
    "mcp": {
      "url": "https://mac.jasontally.com/mcp"
    }
  }
}

Tools it offers

1 tool, as the server itself reported during our check on Oct 31, 2026.

  • lookupResolve a MAC address or OUI prefix to its registered organization using longest-prefix match across the MA-L, MA-M, MA-S, IAB, and CID registries. Reports the block type, address count, registration country, and a link

Questions

What is the MAC Address Lookup MCP server?

Find the organization behind a MAC address or OUI prefix in the IEEE registries. No auth, no key. It is made by mac.jasontally.com and listed in the official MCP Registry as com.jasontally.mac/mcp. MCP (Model Context Protocol) is the open standard that lets AI apps like Claude, ChatGPT and Cursor use outside tools.

How do I add MAC Address Lookup to Claude?

In the Claude app or claude.ai, open Settings, then Connectors, choose "Add custom connector" and paste https://mac.jasontally.com/mcp. In Claude Code, run: claude mcp add --transport http mcp https://mac.jasontally.com/mcp

How do I add MAC Address Lookup 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://mac.jasontally.com/mcp.

How do I add MAC Address Lookup to Cursor?

Open Cursor settings, go to MCP, choose "Add new MCP server" (or edit ~/.cursor/mcp.json) and add: { "mcpServers": { "mcp": { "url": "https://mac.jasontally.com/mcp" } } }

Does MAC Address Lookup work right now?

Yes. It responded when we last checked on 31 Oct 2026. We check remote MCP servers every day.

What can MAC Address Lookup do?

It gives your AI 1 tool, including lookup. The full list is on this page.

Is this your server? Get the badge for your README
chen.media/mcp badge

Markdown (GitHub README)

[![Listed on chen.media/mcp](https://chen.media/mcp/badge/com-jasontally-mac-mcp.svg)](https://chen.media/mcp/com-jasontally-mac-mcp)

HTML (switches to dark mode on its own)

<a href="https://chen.media/mcp/com-jasontally-mac-mcp"><picture><source media="(prefers-color-scheme: dark)" srcset="https://chen.media/mcp/badge/com-jasontally-mac-mcp.svg?theme=dark"><img src="https://chen.media/mcp/badge/com-jasontally-mac-mcp.svg" alt="Listed on chen.media/mcp" height="40"></picture></a>

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