greynoise

About greynoise

Use greynoise with your agent

claude mcp add greynoise -- npx -y mcp-greynoise

{
  "mcpServers": {
    "greynoise": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-greynoise"
      ]
    }
  }
}

Frequently asked questions

What is greynoise?

greynoise is an MCP (Model Context Protocol) server by nickjlucker. MCP server for GreyNoise API - Check if IPs are internet background noise or targeted attacks

How do I connect greynoise to Claude, Cursor, or another MCP client?

Install greynoise from its npm package (mcp-greynoise) and register it under "mcpServers" in your client's MCP configuration — for example claude_desktop_config.json or Cursor's mcp.json — then restart the client.

Is greynoise open source?

Yes — the source code is public at github.com/nickjlucker/mcp-greynoise.

Can AI agents pay to use greynoise?

Not yet through Loomal — greynoise is listed as a free directory entry. If its maintainer verifies ownership, they can set per-call USDC pricing that agents pay over x402, with settlement on Base.