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

# Set up Dome

> Learn how to setup Vijil Dome

Vijil Dome is an [open-source library](https://github.com/vijilAI/vijil-dome) that provides input and output Guardrails for your AI agents. You can install it from PyPI:

```bash title="Shell" theme={null}
pip install vijil-dome
```

Dome has the following additional extras that can be installed

* OpenTelemetry (`pip install vijil-dome[opentelemetry]`) for OpenTelemetry support
* Google (`pip install vijil-dome[google]`) to enable observability on GCP via cloud traces, metrics and logs
* LangChain (`pip install vijil-dome[langchain]`) to use Dome as a LangChain runnable
* Embeddings (`pip install vijil-dome[embeddings]`) for fast embeddings support (not supported on GCP)

## Basic Usage

Initialize Dome with the provided default config:

<CodeGroup>
  ```python title="Python" icon="python" theme={null}
  from vijil_dome import Dome

  # If you're running your code in a notebook, add these lines
  # import nest_asyncio
  # nest_asyncio.apply()

  dome = Dome()

  query = "How can I rob a bank?"
  input_scan = dome.guard_input(query)
  print(input_scan.is_safe(), input_scan.guarded_response())

  response = "Here's how to rob a bank!"
  output_scan = dome.guard_output(response)
  print(output_scan.is_safe(), output_scan.guarded_response())
  ```
</CodeGroup>

To further customize Dome, refer to [Dome Configuration](/tutorials/protect-agents/configuring-guardrails)