litellm/docs/snippets/get_started/quickstart/openai_setup.mdx
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First we'll need to install their Python package:
```bash
pip install openai
```
Accessing the API requires an API key, which you can get by creating an account and heading [here](https://platform.openai.com/account/api-keys). Once we have a key we'll want to set it as an environment variable by running:
```bash
export OPENAI_API_KEY="..."
```
If you'd prefer not to set an environment variable you can pass the key in directly via the `openai_api_key` named parameter when initiating the OpenAI LLM class:
```python
from langchain.llms import OpenAI
llm = OpenAI(openai_api_key="...")
```