# Petals | |
This page covers how to use the Petals ecosystem within LangChain. | |
It is broken into two parts: installation and setup, and then references to specific Petals wrappers. | |
## Installation and Setup | |
- Install with `pip install petals` | |
- Get a Hugging Face api key and set it as an environment variable (`HUGGINGFACE_API_KEY`) | |
## Wrappers | |
### LLM | |
There exists an Petals LLM wrapper, which you can access with | |
```python | |
from langchain.llms import Petals | |
``` | |