Public Suffix List

About Public Suffix List

Use Public Suffix List with your agent

claude mcp add --transport http public-suffix-list https://gateway.pipeworx.io/public-suffix-list/mcp

{
  "mcpServers": {
    "public-suffix-list": {
      "url": "https://gateway.pipeworx.io/public-suffix-list/mcp"
    }
  }
}

Frequently asked questions

What is Public Suffix List?

Public Suffix List is an MCP (Model Context Protocol) server by pipeworx-io. Mozilla Public Suffix List — eTLD parser (cached 24h)

How do I connect Public Suffix List to Claude, Cursor, or another MCP client?

Public Suffix List is a remote MCP server — add its endpoint (https://gateway.pipeworx.io/public-suffix-list/mcp) to your client's MCP configuration (for example with "claude mcp add", or under "mcpServers" in Cursor's mcp.json) and restart the client.

Is Public Suffix List open source?

Yes — the source code is public at github.com/pipeworx-io/mcp-public-suffix-list.

Can AI agents pay to use Public Suffix List?

Not yet through Loomal — Public Suffix List 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.