# EmbeddingRouterChain

> **Class** in `langchain_classic`

📖 [View in docs](https://reference.langchain.com/python/langchain-classic/chains/router/embedding_router/EmbeddingRouterChain)

Chain that uses embeddings to route between options.

## Signature

```python
EmbeddingRouterChain()
```

## Extends

- `RouterChain`

## Properties

- `vectorstore`
- `routing_keys`
- `model_config`
- `input_keys`

## Methods

- [`from_names_and_descriptions()`](https://reference.langchain.com/python/langchain-classic/chains/router/embedding_router/EmbeddingRouterChain/from_names_and_descriptions)
- [`afrom_names_and_descriptions()`](https://reference.langchain.com/python/langchain-classic/chains/router/embedding_router/EmbeddingRouterChain/afrom_names_and_descriptions)

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[View source on GitHub](https://github.com/langchain-ai/langchain/blob/fb6ab993a73180538f6cca876b3c85d46c08845f/libs/langchain/langchain_classic/chains/router/embedding_router.py#L19)