langchain/docs/ecosystem/metal.md

# Metal

This page covers how to use [Metal](https://getmetal.io) within LangChain.

## What is Metal?

Metal is a  managed retrieval & memory platform built for production. Easily index your data into `Metal` and run semantic search and retrieval on it.

![Metal](../_static/MetalDash.png)

## Quick start

Get started by [creating a Metal account](https://app.getmetal.io/signup).

Then, you can easily take advantage of the `MetalRetriever` class to start retrieving your data for semantic search, prompting context, etc. This class takes a `Metal` instance and a dictionary of parameters to pass to the Metal API.

```python
from langchain.retrievers import MetalRetriever
from metal_sdk.metal import Metal


metal = Metal("API_KEY", "CLIENT_ID", "INDEX_ID");
retriever = MetalRetriever(metal, params={"limit": 2})

docs = retriever.get_relevant_documents("search term")
```