adk-python-mcp-client

Overview

This project demonstrates how to use the Agent Development Kit (ADK) as an MCP client for flight search capabilities. It showcases asynchronous integration between ADK's LlmAgent and an external MCP server, featuring dynamic tool discovery, stateful session management, and structured function calling. The implementation uses Google's Gemini model as the LLM and connects to an MCP server that provides flight search capabilities via SerpAPI.

Try asking AI

After installing, here are 5 things you can ask your AI assistant:

• flight_searchflight_search(origin, destination, date)

  Searches for flights from an origin to destination on a specific date using real-time flight data.

  Try:Find flights from Atlanta to Las Vegas on 2025-05-05Try:Search for flights from New York to Los Angeles next weekTry:Show me flights from Chicago to Miami on December 15th

Note: The tool 'flight_search' is clearly documented as the only MCP tool exposed by the mcp-flight-search server. The README specifically mentions connecting to this server to enable Gemini to interact with real-world APIs for flight search func

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Installation

git clone https://github.com/arjunprabhulal/adk-python-mcp-client.git
cd adk-python-mcp-client

python -m venv venv
source venv/bin/activate  # On Windows: venv\Scripts\activate
pip install -r requirements.txt

cp .env.example .env
# Edit .env with your API keys

python client.py

{
  "mcpServers": {
    "adk-python-mcp": {
      "command": "python",
      "args": ["path/to/client.py"]
    }
  }
}

FAQ

What is ADK in this context?

ADK stands for Agent Development Kit, which is used in this project as an MCP client to connect to an MCP server and provide flight search capabilities through Gemini 2.

What MCP server does this client connect to?

This client connects to 'mcp-flight-search', an MCP server built using FastMCP that exposes flight search tools via SerpAPI.

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