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

# Metal integrations

> Integrate with Metal using LangChain Python.

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.

## 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 theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
from langchain_classic.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.invoke("search term")
```

***

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