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Gemini CLI

Google Custom Search MCP for Gemini CLI

io.github.a1-x-tech/mcp-google-custom-search

MCP server for Google Custom Search: web and image search via a Programmable Search Engine.

client:Gemini CLI transport:stdio runtime:npm

Install Google Custom Search MCP in Gemini CLI

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

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "mcp-google-custom-search": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-google-custom-search"
      ],
      "env": {
        "GOOGLE_CUSTOM_SEARCH_API_KEY": "<GOOGLE_CUSTOM_SEARCH_API_KEY>",
        "GOOGLE_CUSTOM_SEARCH_ENGINE_ID": "<GOOGLE_CUSTOM_SEARCH_ENGINE_ID>",
        "GOOGLE_CUSTOM_SEARCH_API_BASE": "<GOOGLE_CUSTOM_SEARCH_API_BASE>",
        "GOOGLE_CUSTOM_SEARCH_TIMEOUT_MS": "<GOOGLE_CUSTOM_SEARCH_TIMEOUT_MS>",
        "GOOGLE_CUSTOM_SEARCH_MAX_RETRIES": "<GOOGLE_CUSTOM_SEARCH_MAX_RETRIES>"
      }
    }
  }
}

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

Google Custom Search MCP in other clients

Google Custom Search MCP MCP server