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

# LangDB

> Use the LangDB AI Gateway with Agno agents.

[LangDB](https://langdb.ai/) routes model requests through an OpenAI-compatible AI gateway. See [LangDB's Agno integration guide](https://docs.langdb.ai/getting-started/working-with-agent-frameworks/working-with-agno) for gateway configuration.

## Authentication

Create an API key in [LangDB API key settings](https://app.langdb.ai/settings/api_keys), then export the gateway credentials and API base URL.

<CodeGroup>
  ```bash macOS / Linux theme={null}
  export LANGDB_API_KEY="your_langdb_api_key"
  export LANGDB_PROJECT_ID="your_langdb_project_id"
  export LANGDB_API_BASE_URL="https://api.langdb.ai"
  ```

  ```powershell Windows theme={null}
  $Env:LANGDB_API_KEY="your_langdb_api_key"
  $Env:LANGDB_PROJECT_ID="your_langdb_project_id"
  $Env:LANGDB_API_BASE_URL="https://api.langdb.ai"
  ```
</CodeGroup>

## Example

Install the `openai` package:

```shell theme={null}
uv pip install -U openai agno
```

Use `LangDB` with your `Agent`:

<CodeGroup>
  ```python agent.py theme={null}
  from agno.agent import Agent
  from agno.models.langdb import LangDB

  agent = Agent(
      model=LangDB(id="gpt-5-mini"),
      markdown=True
  )

  # Print the response in the terminal
  agent.print_response("Share a 2 sentence horror story.")

  ```
</CodeGroup>

See the [LangDB usage examples](/models/providers/gateways/langdb/usage/basic).

## Params

| Parameter       | Type            | Default                             | Description                                                                  |
| --------------- | --------------- | ----------------------------------- | ---------------------------------------------------------------------------- |
| `id`            | `str`           | `"gpt-4o"`                          | The ID of the model to use through LangDB                                    |
| `name`          | `str`           | `"LangDB"`                          | The name of the model                                                        |
| `provider`      | `str`           | `"LangDB"`                          | The provider of the model                                                    |
| `api_key`       | `Optional[str]` | `None`                              | The API key for LangDB (defaults to LANGDB\_API\_KEY env var)                |
| `project_id`    | `Optional[str]` | `None`                              | The LangDB project ID (defaults to LANGDB\_PROJECT\_ID env var)              |
| `base_host_url` | `str`           | `"https://api.us-east-1.langdb.ai"` | The host URL for the LangDB API (defaults to LANGDB\_API\_BASE\_URL env var) |
| `base_url`      | `Optional[str]` | `None`                              | The full base URL. Built as `{base_host_url}/{project_id}/v1` when not set   |
| `label`         | `Optional[str]` | `None`                              | Label sent as the `x-label` header with each request                         |

`LangDB` also supports the params of [OpenAI](/reference/models/openai).