Code · frontend

Use DeepSeek Coder V2 with Next.js

Updated 2026-05-21 · By XALEN

How to use DeepSeek Coder V2 (Code, 236B (21B active)) with Next.js. Install, authenticate, and make your first API call in minutes. Working code example included.

Model

DeepSeek Coder V2

236B (21B active) · 128K context · $0.03 input

Framework

Next.js

frontend · npm install xalen-sdk

1. Install

npm install xalen-sdk

2. Code

// app/api/chat/route.ts
import XALEN from 'xalen-sdk';

const client = new XALEN({ apiKey: process.env.XALEN_API_KEY });

export async function POST(req: Request) {
  const { messages } = await req.json();
  const response = await client.chat.completions.create({
    model: 'deepseek-coder-v2',
    messages,
    stream: true
  });
  return new Response(response.toReadableStream());
}

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Last updated: 2026-05-21