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Use Perplexity Sonar Pro with JavaScript

Updated 2026-05-21 · By XALEN

How to use Perplexity Sonar Pro (Search, ~200B) with JavaScript. Install, authenticate, and make your first API call in minutes. Working code example included.

Model

Perplexity Sonar Pro

~200B · 200K context · $0.003 input

Framework

JavaScript

language · npm install xalen-sdk

1. Install

npm install xalen-sdk

2. Code

import XALEN from 'xalen-sdk';

const client = new XALEN({ apiKey: 'xln_test_YOUR_KEY' });

const response = await client.chat.completions.create({
  model: 'perplexity-sonar-pro',
  messages: [{ role: 'user', content: 'Hello from JavaScript!' }]
});
console.log(response.choices[0].message.content);

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Last updated: 2026-05-21