# ArceeRetriever

> **Class** in `langchain_community`

📖 [View in docs](https://reference.langchain.com/python/langchain-community/retrievers/arcee/ArceeRetriever)

Arcee Domain Adapted Language Models (DALMs) retriever.

To use, set the ``ARCEE_API_KEY`` environment variable with your Arcee API key,
or pass ``arcee_api_key`` as a named parameter.

## Signature

```python
ArceeRetriever(
    self,
    **data: Any = {},
)
```

## Description

**Example:**

.. code-block:: python

from langchain_community.retrievers import ArceeRetriever

retriever = ArceeRetriever(
    model="DALM-PubMed",
    arcee_api_key="ARCEE-API-KEY"
)

documents = retriever.invoke("AI-driven music therapy")

## Extends

- `BaseRetriever`

## Constructors

```python
__init__(
    self,
    **data: Any = {},
) -> None
```


## Properties

- `arcee_api_key`
- `model`
- `arcee_api_url`
- `arcee_api_version`
- `arcee_app_url`
- `model_kwargs`
- `model_config`

## Methods

- [`validate_environments()`](https://reference.langchain.com/python/langchain-community/retrievers/arcee/ArceeRetriever/validate_environments)

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[View source on GitHub](https://github.com/langchain-ai/langchain-community/blob/a6a6079511ac8a5c1293337f88096b8641562e77/libs/community/langchain_community/retrievers/arcee.py#L12)