Gemini API quickstart

This quickstart shows you how to install your SDK of choice and then make your first Gemini API request.

Install the Gemini API library

Using Node.js v18+, install the Google Gen AI SDK for TypeScript and JavaScript using the following npm command:

npm install @google/genai

Make your first request

Get a Gemini API key in Google AI Studio

Use the generateContent method to send a request to the Gemini API.

import { GoogleGenAI } from "@google/genai";

const ai = new GoogleGenAI({ apiKey: "YOUR_API_KEY" });

async function main() {
  const response = await ai.models.generateContent({
    model: "gemini-2.0-flash",
    contents: "Explain how AI works in a few words",
  });
  console.log(response.text);
}

await main();

What's next

Now that you made your first API request, you might want to explore the following guides that show Gemini in action: