Usgs Volcano for Gemini CLI

io.github.pipeworx-io/usgs-volcano

USGS Volcano MCP — Volcano Hazards Program HANS-public feed (no auth)

client:Gemini CLI transport:streamable-http

Install Usgs Volcano in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

{
  "mcpServers": {
    "usgs-volcano": {
      "httpUrl": "https://gateway.pipeworx.io/usgs-volcano/mcp"
    }
  }
}

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