Code
tool_use.py
import asyncio
from agno.agent import Agent
from agno.models.litellm import LiteLLM
from agno.tools.yfinance import YFinanceTools
openai_agent = Agent(
model=LiteLLM(
id="gpt-4o",
name="LiteLLM",
),
markdown=True,
tools=[YFinanceTools()],
)
# Ask a question that would likely trigger tool use
# ---------------------------------------------------------------------------
# Run Agent
# ---------------------------------------------------------------------------
if __name__ == "__main__":
# --- Sync ---
openai_agent.print_response("How is TSLA stock doing right now?")
# --- Sync + Streaming ---
openai_agent.print_response("Whats happening in France?", stream=True)
# --- Async ---
asyncio.run(openai_agent.aprint_response("What is happening in France?"))
Usage
1
Set up your virtual environment
uv venv --python 3.12
source .venv/bin/activate
uv venv --python 3.12
.venv\Scripts\activate
2
Set your API key
export LITELLM_API_KEY=xxx
3
Install dependencies
uv pip install -U "litellm<=1.82.6" openai yfinance agno
4
Run Agent
Save the code above as
tool_use.py, then run:python tool_use.py