Frequently Asked Questions

General

What is Gemini MCP Tool?

A bridge between Claude Desktop and Google's Gemini AI, enabling you to use Gemini's powerful capabilities directly within Claude.

Does it support windows?

Windows testing is underway, some users have reported success and other failures.

Why use this instead of Gemini directly?

• Integrated into your existing AI workflow
• File analysis with @ syntax
• Reduced context switching (gemini can store and recall memories!)
• Best of both: Leverages both AIs' strengths

Is it free?

The tool is open source and free. You need:

• Gemini API key (has free tier) or Google Account
• Claude Desktop or Claude Code or any MCP client

Setup

Do I need to install Gemini CLI separately?

Yes, install it with:

npm install -g @google/gemini-cli

Then, run "gemini" and complete auth.

What happens after June 18, 2026?

Google retires the Gemini CLI on 2026-06-18 for free, Pro, and Ultra tiers (Standard/ Enterprise and paid Cloud API keys keep working). Its successor is the Antigravity CLI (agy). This tool ships an experimental agy backend — set GEMINI_MCP_BACKEND=agy to try it — and the default will switch ahead of the cutoff. See the Antigravity migration guide.

Can I use this with Claude Code?

Yes! It works with both Claude Desktop and Claude Code.

What Node.js version do I need?

Node.js v16.0.0 or higher.

Usage

What's the @ syntax?

It's how you reference files for analysis:

• @file.js - Single file
• @src/*.js - Multiple files
• @**/*.ts - All TypeScript files
• new: file:index.html now works, fully bypassing @ integration

Can I analyze multiple files? What about ALL the files?

Yes! Gemini's 1M token context allows analyzing entire codebases.

Which model should I use?

• Daily work: Gemini Pro
• Large analysis: Gemini Pro
• Quick tasks: Gemini Flash

Features

What languages are supported?

Any language code or human.

Does it work offline?

No, it requires internet to connect to Gemini API.

Troubleshooting

Why is it slow?

• Large files take time to process
• Try using Flash model for speed
• Check your internet connection

Can I use my own models?

Currently supports official Gemini models only.
--> opencode integration coming soon

Can I add new features?

Yes! Check issues or propose your own ideas.

Privacy & Security

Is my code sent to Google?

Only when you explicitly use Gemini commands. Code is processed according to Google's privacy policy.

Are credentials secure?

• We never look at or touch your keys!

Can I use this for proprietary code?

Check your organization's policies and Google's Gemini API terms of service.

Advanced

Can I use this in CI/CD?

Not recommended - designed for interactive development.

Why Gemini MCP?

By bridging Claude Desktop with Google's powerful models, Gemini MCP Tool lets you leverage the following advanced capabilities right in your existing workflow:

💰 Cost-Effective

Delegate tasks to a more cost-effective model to reduce expensive token usage.

🎯 Multimodal Native

Process text, images, audio, video, and code seamlessly within your workflow.

🚀 High Performance

Leverage a large context window and powerful built-in tools, including web search.

🧠 Advanced Reasoning

Gain a different analytical perspective for sophisticated analysis of complex information.

🔒 Privacy First

Open-source and telemetry-free. Committed to transparency and responsible AI.

More Questions?

• Check Documentation
• Browse GitHub Issues
• Ask in Discussions