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

# Tool-Enabled Accuracy Evaluation

> Score a CalculatorTools-equipped agent on computing 10! against the expected 3628800.

Demonstrates accuracy evaluation for an agent using calculator tools.

```python accuracy_with_tools.py theme={null}
"""
Tool-Enabled Accuracy Evaluation
================================

Demonstrates accuracy evaluation for an agent using calculator tools.
"""

from typing import Optional

from agno.agent import Agent
from agno.eval.accuracy import AccuracyEval, AccuracyResult
from agno.models.openai import OpenAIChat
from agno.tools.calculator import CalculatorTools

# ---------------------------------------------------------------------------
# Create Evaluation
# ---------------------------------------------------------------------------
evaluation = AccuracyEval(
    name="Tools Evaluation",
    model=OpenAIChat(id="o4-mini"),
    agent=Agent(
        model=OpenAIChat(id="gpt-5.2"),
        tools=[CalculatorTools()],
    ),
    input="What is 10!?",
    expected_output="3628800",
)

# ---------------------------------------------------------------------------
# Run Evaluation
# ---------------------------------------------------------------------------
if __name__ == "__main__":
    result: Optional[AccuracyResult] = evaluation.run(print_results=True)
    assert result is not None and result.avg_score >= 8
```

## Run the Example

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

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

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

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

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

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

Full source: [cookbook/09\_evals/accuracy/accuracy\_with\_tools.py](https://github.com/agno-agi/agno/blob/main/cookbook/09_evals/accuracy/accuracy_with_tools.py)