It uses the Google Custom Search JSON API with your Google Cloud API key. You decide what the engine covers — a handful of sites or the entire web — and the server makes the limits of the JSON API…
mcp-google-custom-search is an MCP project maintained in the a1-x-tech/mcp-google-custom-search repository. The maintainer describes its purpose as “It uses the Google Custom Search JSON API with your Google Cloud API key. You decide what the engine covers — a handful of sites…”. Read the project documentation for the complete scope.
The documented npm package is mcp-google-custom-search. The configuration below comes from the maintainer’s example; adapt its paths and account values to your environment.
The example declares GOOGLE_CUSTOM_SEARCH_API_KEY, GOOGLE_CUSTOM_SEARCH_ENGINE_ID. Secret-looking values have been replaced with placeholders. Required and optional labels are shown only when the documentation states them.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
{
"mcpServers": {
"google-custom-search": {
"command": "npx",
"args": [
"-y",
"mcp-google-custom-search@latest"
],
"env": {
"GOOGLE_CUSTOM_SEARCH_API_KEY": "YOUR_GOOGLE_CUSTOM_SEARCH_API_KEY",
"GOOGLE_CUSTOM_SEARCH_ENGINE_ID": "your_engine_id"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
| Variable | Description | Required |
|---|---|---|
| GOOGLE_CUSTOM_SEARCH_API_KEY | Declared in the maintainer’s client configuration. | Check documentation |
| GOOGLE_CUSTOM_SEARCH_ENGINE_ID | Declared in the maintainer’s client configuration. | Check documentation |
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