> ## 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.

# To Openai Tool • AI Agent SDK

> to_openai_tool: Convert the MCP tool to an OpenAI-compatible tool definition.

# to\_openai\_tool

<div className="flex items-center gap-2">
  <Badge color="purple">Method</Badge>
</div>

> This is a method of the [**MCP**](../classes/MCP) class in the [**mcp**](../modules/mcp) module.

Convert the MCP tool to an OpenAI-compatible tool definition.

This method is specifically invoked by the Agent class when using
provider/model format (e.g., "openai/gpt-4o-mini").

```mermaid theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
%%{init: {'theme': 'base', 'themeVariables': { 'primaryColor': '#8B0000', 'primaryTextColor': '#fff', 'primaryBorderColor': '#710101', 'lineColor': '#189AB4', 'secondaryColor': '#189AB4', 'tertiaryColor': '#fff' }}}%%

graph LR
    agent["Agent"] -- "uses" --> tool["Tool: to_openai_tool"]
    tool -- "returns" --> result["Result"]
    style tool fill:#189AB4,color:#fff
    style agent fill:#8B0000,color:#fff
    style result fill:#8B0000,color:#fff
```

## Signature

```python theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
def to_openai_tool() -> Any
```

### Returns

<ResponseField name="Returns" type="Any">
  OpenAI-compatible tool definition(s)
</ResponseField>

## Uses

* `to_openai_tools`
* `logging.warning`

## Source

<Card title="View on GitHub" icon="github" href="https://github.com/MervinPraison/PraisonAI/blob/main/src/praisonai-agents/praisonaiagents/mcp/mcp.py#L567">
  `praisonaiagents/mcp/mcp.py` at line 567
</Card>

***

## Related Documentation

<CardGroup cols={2}>
  <Card title="Tools Concept" icon="wrench" href="/docs/concepts/tools" />

  <Card title="Create Custom Tools" icon="plus" href="/docs/guides/tools/create-custom-tools" />

  <Card title="Tool Development" icon="code" href="/docs/tutorials/advanced-tool-development" />
</CardGroup>