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client = openai.OpenAI(base_url="https://YOUR-NODE-ID.gaia.domains/v1", api_key="YOUR_API_KEY_GOES_HERE")
```
Alternatively, you could set an environment variables at the OS level.
```
export OPENAI_API_BASE=https://YOUR-NODE-ID.gaia.domains/v1
export OPENAI_API_KEY=YOUR_API_KEY_GOES_HERE
```
Then, when you make API calls from the `client`, make sure that the `model` is set to the model name
available on your node.
```py
response = client.chat.completions.create(
model="Meta-Llama-3-8B-Instruct-Q5_K_M",
messages=[
{"role": "system", "content": "You are a strategic reasoner."},
{"role": "user", "content": "What is the purpose of life?"}
],
temperature=0.7,
max_tokens=500
]
)
```
That's it! You can now take any application built with the official OpenAI Python library and use a Gaia node
as its backend!
## The OpenAI Node API library
:::note
Make sure to replace `YOUR_API_KEY_GOES_HERE` with your **own API key**. To get your own API key, follow [this](../getting-started/authentication) tutorial.
:::
You can install the [OpenAI Node library](https://www.npmjs.com/package/openai) which provides convenient access to the OpenAI REST API from TypeScript or JavaScript as follows:
```
npm install openai
```
Import it into your project as:
```js
// Example usage in Node.js
const OpenAI = require('openai');
```
Create an OpenAI client with a custom base URL. Remember to append the `/v1` after the host name.
```js
const client = new OpenAI({
baseURL: 'https://YOUR-NODE-ID.gaia.domains/v1',
apiKey: 'YOUR_API_KEY_GOES_HERE'
});
```
Alternatively, you can set an environment variable using `dotenv` in Node.
```
process.env.OPENAI_API_BASE = 'https://YOUR-NODE-ID.gaia.domains/v1';
```
Then, when you make API calls from the `client`, make sure that the `model` is set to the model name
available on your node.
```js
async function callOpenAI() {
try {
const response = await client.chat.completions.create({
model: "Meta-Llama-3-8B-Instruct-Q5_K_M",
messages: [
{ role: "system", content: "You are a strategic reasoner." },
{ role: "user", content: "What is the purpose of life?" }
],
temperature: 0.7,
max_tokens: 500
});
console.log(response.choices[0].message.content);
} catch (error) {
console.error('Error:', error);
}
}
//Usage
callOpenAI();
```
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