> ## Documentation Index
> Fetch the complete documentation index at: https://agno-v2-docs-scavio-google-v2.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Tool Use

> Give a GPT-4o agent web search tools through a LiteLLM proxy.

```python tool_use.py theme={null}
"""Run `uv pip install ddgs` to install dependencies."""

from agno.agent import Agent
from agno.models.litellm import LiteLLMOpenAI
from agno.tools.websearch import WebSearchTools

# ---------------------------------------------------------------------------
# Create Agent
# ---------------------------------------------------------------------------

agent = Agent(
    model=LiteLLMOpenAI(id="gpt-4o"),
    tools=[WebSearchTools()],
    markdown=True,
)
agent.print_response("Whats happening in France?")

# ---------------------------------------------------------------------------
# Run Agent
# ---------------------------------------------------------------------------

if __name__ == "__main__":
    pass
```

## Run the Example

<Steps>
  <Snippet file="create-venv-step.mdx" />

  <Step title="Install dependencies">
    ```bash theme={null}
    uv pip install -U agno "litellm[proxy]" ddgs openai
    ```
  </Step>

  <Step title="Export your API keys">
    <CodeGroup>
      ```bash Mac/Linux theme={null}
      export LITELLM_API_KEY="your_litellm_api_key_here"
      export OPENAI_API_KEY="your_openai_api_key_here"
      ```

      ```bash Windows theme={null}
      $Env:LITELLM_API_KEY="your_litellm_api_key_here"
      $Env:OPENAI_API_KEY="your_openai_api_key_here"
      ```
    </CodeGroup>
  </Step>

  <Step title="Start LiteLLM">
    Start the local OpenAI-compatible proxy on port 4000:

    ```bash theme={null}
    litellm --model gpt-4o --host 127.0.0.1 --port 4000
    ```
  </Step>

  <Step title="Run the example">
    Save the code above as `tool_use.py`, then run:

    ```bash theme={null}
    python tool_use.py
    ```
  </Step>
</Steps>

Full source: [cookbook/90\_models/litellm\_openai/tool\_use.py](https://github.com/agno-agi/agno/blob/main/cookbook/90_models/litellm_openai/tool_use.py)