OpenRouter TypeScript SDK - OpenRouter

The OpenRouter TypeScript SDK is a type-safe toolkit for building AI-powered features in any JS or TS runtime, giving you access to 400+ models across providers through a single unified API.

Installation

npm

npm add @openrouter/sdk

pnpm

pnpm add @openrouter/sdk

bun

bun add @openrouter/sdk

yarn

yarn add @openrouter/sdk

This package is published as an ES Module (ESM) only. For applications using CommonJS, use await import("@openrouter/sdk") to import and use this package.

Quickstart

import { OpenRouter } from "@openrouter/sdk";

const openRouter = new OpenRouter();

const result = await openRouter.chat.send({
  messages: [
    {
      role: "user",
      content: "Hello, how are you?",
    },
  ],
  model: "openai/gpt-5",
  provider: {
    zdr: true,
    sort: "price",
  },
  stream: true,
});

for await (const chunk of result) {
  console.log(chunk.choices[0].delta.content);
}

API reference

Browse the API reference for each resource in the sidebar. Type definitions for every request, response, model, and operation are linked inline from each resource page.

Usage for Agents Analytics

⌘I

​Installation

​Quickstart

​API reference

Installation

Quickstart

API reference