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

# Basic Agent

> Run a Claude agent through Vertex AI and print its response.

Create an Agno agent backed by Claude on Vertex AI.

## Code

```python basic.py theme={null}
from agno.agent import Agent, RunOutput  # noqa
from agno.models.vertexai.claude import Claude

agent = Agent(model=Claude(id="claude-sonnet-4-6"), markdown=True)

# Get the response in a variable
# run: RunOutput = agent.run("Share a 2 sentence horror story")
# print(run.content)

# Print the response in the terminal
agent.print_response("Share a 2 sentence horror story")
```

## Usage

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

  <Step title="Set your environment variables">
    <CodeGroup>
      ```bash Mac theme={null}
      export CLOUD_ML_REGION=xxx
      export GOOGLE_CLOUD_PROJECT=xxx
      ```

      ```powershell Windows theme={null}
      $Env:CLOUD_ML_REGION="xxx"
      $Env:GOOGLE_CLOUD_PROJECT="xxx"
      ```
    </CodeGroup>
  </Step>

  <Step title="Authenticate your CLI session">
    ```bash theme={null}
    gcloud auth application-default login
    ```

    <Note>You don't need to authenticate your CLI every time.</Note>
  </Step>

  <Step title="Install dependencies">
    ```bash theme={null}
    uv pip install -U 'anthropic[vertex]' agno
    ```
  </Step>

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

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