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

# GitHub Copilot CLI

> Use a custom Anthropic or OpenAI provider when your Copilot version exposes it.

## Custom provider variables

For an OpenAI provider setting, use the OpenAI-compatible option and a base URL ending in /v1. The exact variable names and custom-provider support can change between Copilot releases, so compare them with the Setup page and the version Aster has qualified.

```bash theme={null}
export COPILOT_PROVIDER_TYPE=anthropic
export COPILOT_PROVIDER_BASE_URL=https://api.asterwise.dev
export COPILOT_PROVIDER_API_KEY='your Aster API key'
export COPILOT_MODEL=aster-code

copilot
```

## Next steps

* [Make a first request](/quickstart)
* [Troubleshoot your connection](/errors-fallback)