Gemini CLI Benchline lookup_dns

How to: Gemini CLI Benchline lookup_dns

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

Add Benchline to Gemini CLI

01
Open ~/.gemini/settings.json and merge this in. Keep any servers already there.

{
  "mcpServers": {
    "benchline": {
      "httpUrl": "https://benchline.fabwaseem.com/mcp"
    }
  }
}

02
Save the file and restart Gemini CLI.
03
Ask for something lookup_dns does. Gemini CLI lists the server's tools on connect and calls lookup_dns itself — you do not invoke it by name.
04
If nothing happens, check the server is running and that Benchline'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 18 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.

Benchline MCP server