🔌 MCP Server: Web Search Tool (FastMCP + Serper)

A lightweight, Claude-ready MCP (Model Context Protocol) server that wraps the Serper.dev Google Search API using Python, LangChain, and FastMCP.

This server exposes a structured, LLM-callable tool that performs a Google search and returns a filtered list of results along with a summary answer.

🚀 Features

• ✅ LLM-ready tool with structured input/output

• ✅ Works out-of-the-box with Claude Desktop, ChatGPT, or any MCP-compatible agent

• ✅ Built using FastMCP

• ✅ Real-world API integration via GoogleSerperAPIWrapper

• ✅ Easy to extend with more tools

Related MCP server: websearch

📦 Requirements

• Python 3.10+

• A free Serper.dev API key

• Optional: Claude Desktop for local tool calling

• Optional: MCP Inspector for manual testing

🔧 Installation

1. Clone the repo:

   git clone https://github.com/vikrambhat2/mcp-server-web-search.git
   cd mcp-server-web-search

2. Install dependencies:

pip install -r requirements.txt

3. Set environment variables in a `.env` file:

SERPER_API_KEY=your_serper_api_key_here PORT=10000

4. Run the server:

python server.py

---

## 🔍 Tool Overview

This MCP server exposes a single tool: `google_search_tool`.

### 📤 Input

```json
{
"input": "Your search query string"
}

📥 Output

{
  "results": [
    {
      "title": "Result Title",
      "link": "https://...",
      "snippet": "Brief description"
    },
    ...
  ],
  "answer": "Concise answer generated by Serper"
}

🧪 Testing

✅ With curl

curl -X POST http://localhost:10000/api/tools/google_search_tool \
     -H "Content-Type: application/json" \
     -d '{"input": "latest AI trends 2025"}'

🧪 With Claude Desktop

1. Open Claude Desktop → Settings → Toolcalling

2. Add your MCP server:

   {
     "mcpServers": {
       "googleSearch": {
         "url": "http://localhost:10000/mcp",
         "streaming": true
       }
     }
   }

3. Ask Claude something like:

   "Use the google_search_tool to find top remote AI conferences in 2025."

🧰 With MCP Inspector (GUI)

1. Install MCP Inspector:

   pip install mcp-inspector
   mcp-inspector

2. Visit http://localhost:8080

3. Paste in http://localhost:10000/mcp

4. Explore your tool, prompt, and test it with real inputs.

🌐 Deployment (Optional)

You can deploy this server for free using Render:

1. Push this project to a GitHub repo

2. Create a new Web Service on Render

3. Add build/start commands:

   • Build: pip install -r requirements.txt

   • Start: python app.py

4. Add environment variables:

   • SERPER_API_KEY

   • PORT=10000

5. Your server will be live at: https://yourproject.onrender.com/mcp

You can now plug it into Claude or your agents remotely.

📁 File Structure

├── app.py               # Main MCP server script
├── .env                 # API key and port config
├── requirements.txt     # Python dependencies
└── README.md            # This file

📚 References

• 🔌 FastMCP

• 🔍 Serper.dev

• 🧪 MCP Inspector

• 🤖 Claude + MCP Guide

🛠 Maintainer

Built by @vikrambhat2 Pull requests and forks welcome!