Node.js / TypeScript

The official OpenAI Node SDK with a custom baseURL.

Install
npm install openai
TypeScript
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.000labs.xyz/v1",
  apiKey: process.env["000_LABS_API_KEY"],
});

const completion = await client.chat.completions.create({
  model: "openai/gpt-4o-mini",
  messages: [{ role: "user", content: "What is the meaning of life?" }],
});
console.log(completion.choices[0].message.content);

Streaming

TypeScript
import OpenAI from "openai";

const client = new OpenAI({ baseURL: "https://api.000labs.xyz/v1", apiKey: process.env["000_LABS_API_KEY"] });

const stream = await client.chat.completions.create({
  model: "openai/gpt-4o-mini",
  messages: [{ role: "user", content: "What is the meaning of life?" }],
  stream: true,
});
for await (const chunk of stream) {
  process.stdout.write(chunk.choices[0]?.delta?.content ?? "");
}
Never call the API from browser code with your key — proxy through your own server.