Google ADK

pip install weave google-adk requests

import asyncio
import requests
import weave
from google.adk.agents import Agent
from google.adk.runners import InMemoryRunner
from google.genai import types

weave.init("[YOUR-TEAM]/[YOUR-PROJECT-NAME]")

def wikipedia_search(query: str) -> dict:
    """Search Wikipedia for a topic and return its title and intro paragraph.

    Args:
        query: The topic to search for.

    Returns:
        A dictionary with the article title and intro extract.
    """
    r = requests.get(
        "https://en.wikipedia.org/w/api.php",
        params={
            "action": "query", "generator": "search", "gsrsearch": query, "gsrlimit": 1,
            "prop": "extracts", "exintro": True, "explaintext": True, "format": "json",
        },
        headers={"User-Agent": "weave-demo"},
    ).json()
    page = next(iter(r["query"]["pages"].values()))
    return {"title": page["title"], "extract": page["extract"]}

agent = Agent(
    name="research_assistant",
    model="gemini-2.5-flash",
    instruction=(
        "You are a research assistant. Use the wikipedia_search tool to look up "
        "topics when needed, and cite the article titles you used."
    ),
    tools=[wikipedia_search],
)

async def main():
    runner = InMemoryRunner(agent=agent, app_name="research-app")
    session = await runner.session_service.create_session(
        app_name="research-app", user_id="user-1"
    )

    questions = [
        "Who founded Anthropic?",
        "What is Claude (the AI assistant)?",
        "Summarize what we discussed in one sentence.",
    ]

    for question in questions:
        print(f"USER: {question}")
        async for event in runner.run_async(
            user_id="user-1",
            session_id=session.id,
            new_message=types.Content(
                role="user",
                parts=[types.Part(text=question)],
            ),
        ):
            if event.is_final_response() and event.content:
                print(f"AGENT: {event.content.parts[0].text}\n")

asyncio.run(main())