# get_base_url_env_vars

> **Function** in `deepagents_code`

📖 [View in docs](https://reference.langchain.com/python/deepagents-code/model_config/get_base_url_env_vars)

Return base-URL env var names for a provider in resolution order.

Checks the config file's `base_url_env` first (user override), then falls
back to the hardcoded `PROVIDER_BASE_URL_ENV` map.

## Signature

```python
get_base_url_env_vars(
    provider: str,
) -> tuple[str, ...]
```

## Parameters

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `provider` | `str` | Yes | Provider name. |

## Returns

`str`

Environment variable names, or an empty tuple if the provider has no

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[View source on GitHub](https://github.com/langchain-ai/deepagents/blob/2f56309d821db4a0d06ee03959cf842c91b7f228/libs/code/deepagents_code/model_config.py#L1998)