Gemini MCP Server

This project implements a Model Context Protocol (MCP) server for Google Search enabling integration with AI assistants and other MCP-compatible clients.

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Prerequisites

• Node.js 18+
• npm

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Installation

1. Clone the repository

git clone https://github.com/your-username/mcp-google-search.git
cd google-mcp-server

2. Install dependencies

npm install

3. Set up your Google Custom Search API credentials

Create a .env file in the project root with the following content:

GEMINI_API_KEY=your_google_api_key_here

• GOOGLE_API_KEY: Your Google Custom Search API key.

You can obtain these from the Google Custom Search JSON API documentation.

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Usage

1. Run a test search

npx ts-node src/test.ts

This will execute a sample search and print the results to the console.

2. Integrate with MCP-compatible clients

To use this server as part of an MCP configuration, add an entry to your MCP settings file (e.g., claude_desktop_config.json):

{
  "mcpServers": {
    "gemini-api": {
      "command": "npx",
      "args": ["ts-node", "src/index.ts"],
      "env": {
        "GEMIN_API_KEY": "your_gemini_api_key_here",
      }
    }
  }
}

Replace the API key and CX ID with your actual credentials.

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Available Tools

The server provides the following tools:

1. googleSearchContent: Performs a web search using the Google Custom Search API and returns structured results (titles, links, and snippets).
2. googleSearchImages: Performs an image search using the Google Custom Search API and returns a Markdown image link for the first result.

Refer to the source code in src/tools.ts for detailed usage information.

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Development

To make changes to the project:

1. Modify the code in the src directory as needed.
2. If you add or remove dependencies, update package.json accordingly.
3. Restart your MCP client or test script to apply changes.

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Troubleshooting

• Ensure your Google API key and CX ID are correctly set in the .env file or your environment.
• Check that all dependencies are installed (npm install).
• Verify that you are using Node.js 18 or newer.
• If you make changes to the code, restart your server or test script.

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License

This project is licensed under the MIT License.