adk_builtin_tool_agent

ADK Built-in Tool - Google Search

A simple ADK agent that demonstrates using the built-in Google Search tool to answer questions using real-time web search.

Overview

This agent uses the google_search built-in tool from ADK to search the web and provide up-to-date information.

Project Structure

adk_builtin_tool_agent/
├── agent.py         # Main agent code with google_search tool
├── __init__.py      # Package initialization
└── .env.example     # Example environment variables template

Prerequisites

• Python 3.11 or later
• Google ADK installed (see parent directory README for installation instructions)
• Google API key from Google AI Studio

Setup

1. Create a .env file with your API key and configuration:

Copy the example environment file and update it with your API key:

cp .env.example .env

Then edit .env and replace "your-api-key" (or "YOUR_API_KEY") with your actual Google API key.

Environment Variables:

• GOOGLE_GENAI_USE_VERTEXAI=False: Use AI Studio (Gemini API) instead of Vertex AI
• GOOGLE_API_KEY: Your Google API key from Google AI Studio

Usage

Run with Command Line Interface

From the 1_adk_tools directory:

adk run adk_builtin_tool_agent

Run with Web Interface

From the 1_adk_tools directory:

adk web

Then open the URL shown in the terminal (typically http://localhost:8000) in your browser and select the agent.

Agent Details

• Google ADK Version: 1.18.0
• Model: gemini-2.5-flash
• Tool: google_search (built-in ADK tool)
• Capabilities: Searches the web to answer questions with current information

Demo

References

• ADK Documentation
• Built-in Tools
• Python Quickstart