# 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") ```