# OpenAI with LangChain
> Use LangChain to integrate OpenAI with Helicone to log your OpenAI usage.
import { strings } from "/snippets/strings.mdx";
import LegacyWarning from "/snippets/legacy-provider-warning.mdx";
## {strings.howToIntegrate}
```bash
HELICONE_API_KEY=
OPENAI_API_KEY=
```
```javascript javascript
import { OpenAI } from "@langchain/openai";
const llm = new OpenAI({
apiKey: process.env.OPENAI_API_KEY,
baseURL: "https://oai.helicone.ai/v1",
defaultHeaders: {
"Helicone-Auth": `Bearer ${process.env.HELICONE_API_KEY}`
}
});
```
```python python
from langchain_openai import OpenAI
from dotenv import load_dotenv
import os
load_dotenv()
llm = OpenAI(
api_key=os.getenv("OPENAI_API_KEY"),
base_url="https://oai.helicone.ai/v1",
default_headers={
"Helicone-Auth": f"Bearer {os.getenv('HELICONE_API_KEY')}"
}
)
```
```javascript javascript
const response = await llm.invoke("What is the meaning of life?");
console.log(response);
```
```python python
response = llm.invoke("What is the meaning of life?")
print(response)
```
## {strings.relatedGuides}
{strings.chatbotCookbookDescription}
{strings.replayLlmSessionsCookbookDescription}