> ## 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.

# start • Rust AI Agent SDK

> start: Start the application

# start

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

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

Start the application

## Signature

```python theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
def start(&self) -> crate::error::Result<()>
```

### Returns

<ResponseField name="Returns" type="crate::error::Result<()>">
  The result of the operation.
</ResponseField>