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Gemini CLI Web & domain tools web__unfurl

How to: Gemini CLI Web & domain tools web__unfurl

client:Gemini CLI transport:streamable-http tool:web__unfurl

Add Web & domain tools to Gemini CLI

  1. 01

    Open ~/.gemini/settings.json and merge this in. Keep any servers already there.

{
  "mcpServers": {
    "web": {
      "httpUrl": "https://fourzerotwo.si/mcp/v/web"
    }
  }
}
  1. 02

    Save the file and restart Gemini CLI.

  2. 03

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

  3. 04

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

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 11 October 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.