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

# PraisonAI Tools Creator GPT

> Guide for using the PraisonAI Tools Creator GPT to quickly develop and implement custom tools for PraisonAI

```python theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
from praisonaiagents import Agent, tool

@tool
def hello(name: str) -> str:
    """Greet someone by name."""
    return f"Hello, {name}!"

agent = Agent(name="Demo", tools=[hello])
agent.start("Say hello to Alex using the hello tool")
```

The user prototypes a custom tool with the Tools Creator GPT, then runs it through a PraisonAI agent.

```mermaid theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
graph LR
    U[Input] --> A[Agent]
    A --> T[Tool]
    T --> O[Output]

    classDef agent fill:#8B0000,color:#fff
    classDef tool fill:#189AB4,color:#fff

    class A agent
    class U,O tool
    class T tool
```

```mermaid theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
sequenceDiagram
    participant User
    participant Agent
    participant Feature as PraisonAI Tools Creator GPT

    User->>Agent: Request
    Agent->>Feature: Process request
    Feature-->>Agent: Result
    Agent-->>User: Response
```

# PraisonAI Tools Creator GPT

Use [PraisonAI Tools Creator GPT](https://chatgpt.com/g/g-LrJH1K6Ao-praisonai-tools-creator) to get started quickly.

## Quick Start

<Steps>
  <Step title="Set API key">
    ```bash theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
    export OPENAI_API_KEY=your_openai_api_key
    ```
  </Step>

  <Step title="Create an agent">
    ```python theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
    from praisonaiagents import Agent

    agent = Agent(
        name="GPTAgent",
        instructions="Answer questions accurately and concisely.",
        llm="gpt-4o",
    )

    agent.start("Explain quantum entanglement in simple terms")
    ```
  </Step>
</Steps>

## Best Practices

<AccordionGroup>
  <Accordion title="Use GPT-4o for complex reasoning">
    GPT-4o handles multi-step reasoning and tool use better than smaller models.
  </Accordion>

  <Accordion title="Set temperature appropriately">
    Use lower temperature (0.1-0.3) for factual tasks and higher (0.7-0.9) for creative tasks.
  </Accordion>

  <Accordion title="Use structured outputs for predictable responses">
    Enable JSON mode when you need parseable, structured output from the agent.
  </Accordion>

  <Accordion title="Use GPT-4o-mini for simpler subtasks">
    Route simpler subtasks to GPT-4o-mini to reduce costs while keeping quality high.
  </Accordion>
</AccordionGroup>

## Related

<CardGroup cols={2}>
  <Card title="Custom Tools" icon="wrench" href="/docs/tools/custom">
    Build your own agent tools
  </Card>

  <Card title="Tools Overview" icon="toolbox" href="/docs/tools/tools">
    Browse PraisonAI tool documentation
  </Card>
</CardGroup>