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Google Grounding lets a Gemini agent ground its answer with public web results from Google Search.

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What it does

This tool uses Gemini’s native Google Search grounding. Gemini decides when search grounding is useful, runs the search internally, and returns grounding metadata such as search queries, sources, citations, and Search Suggestions. Use Google Grounding when the agent uses a Gemini model and the answer should be tied to current public web sources.

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Adding the tool to an agent

  1. Open a Gemini agent in the editor.
  2. Click the button with the tooltip Add MCP Tool or Sub Agent.
  3. In MCP Tools, click Google Grounding.

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Configuration

Fetch Hive does not show extra configuration fields for Google Grounding in this version.
  • Google Grounding is Gemini-native. It is sent to Gemini as a built-in grounding tool and can return citations and Google Search Suggestions.
  • Google Search is Fetch Hive’s SERP-style web search tool. It is powered through the external search tool path and can be used by non-Gemini agents.

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Billing notes

  • Hosted Gemini agents use the hosted LLM wallet when Google returns a grounded result.
  • Personal/BYOK Gemini agents are not supported yet, so Google Grounding is hosted-only for now.

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Notes

  • Google Grounding does not add an MCP server to the provider request.
  • Use Chat in the editor to see when an agent uses Google Grounding during a test run. See Testing with Chat.