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Cline Zippopotam lookup_zipcode

How to: Cline Zippopotam lookup_zipcode

client:Cline transport:streamable-http tool:lookup_zipcode

Add Zippopotam to Cline

  1. 01

    Open ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json and merge this in. Keep any servers already there.

{
  "mcpServers": {
    "zippopotam": {
      "url": "https://gateway.pipeworx.io/zippopotam/mcp"
    }
  }
}
  1. 02

    Save the file and restart Cline.

  2. 03

    Ask for something lookup_zipcode does. Cline lists the server's tools on connect and calls lookup_zipcode itself — you do not invoke it by name.

  3. 04

    If nothing happens, check the server is running and that Zippopotam's identifier in your config matches the one above exactly.

Cline's MCP Servers pane edits this file for you if you would rather not find it. Cline docs

Set these first

Zippopotam will not start until these are set, so lookup_zipcode never becomes available.

  • PIPEWORX_API_KEY

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 14 November 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.