Quickstart

Install

Pick your preferred SDK. Both ship with full type definitions.

# JavaScript / TypeScript
npm install openai

# Python
pip install openai

Make your first request

Set the base URL to https://rusai.ru/api/v1 and use any model slug.

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://rusai.ru/api/v1",
  apiKey: process.env.RUSAI_API_KEY,
});

const res = await client.chat.completions.create({
  model: "anthropic/claude-opus-4.7",
  messages: [{ role: "user", content: "Hello world" }],
});

Streaming

Pass stream: true to get incremental tokens via SSE.

const stream = await client.chat.completions.create({
  model: "openai/gpt-5.5",
  messages: [{ role: "user", content: "Write a haiku" }],
  stream: true,
});

for await (const chunk of stream) {
  process.stdout.write(chunk.choices[0]?.delta?.content || "");
}

Tool use

All major reasoning models support OpenAI-style function calling.

Next steps