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

# Ultravox

> Python API reference for the ultravox realtime models provider.

<Card title="Usage guide" icon="book" href="/plugins/realtime/ultravox" horizontal>
  Setup, environment variables, and Python/JavaScript/Go usage examples.
</Card>

## UltravoxRealtime

Ultravox's realtime model for audio-only communication

Slot: realtime. Route: plugins -- direct to the vendor, with
ULTRAVOX\_API\_KEY or an explicit api\_key.

```python theme={null}
from zeroruntime.plugins import UltravoxRealtime  # direct to the vendor, with your key
```

### Fields

<ParamField path="model" type="str" default="fixie-ai/ultravox" />

<ParamField path="config" type="Mapping[str, Any] | None" default="UNSET" />

<ParamField path="base_url" type="str" default="https://api.ultravox.ai/api/" />