Stagehand - Browserbase Documentation

There’s a new way to automate the web: by prompting. But a single prompt fails on complicated scripts. Stagehand lets you prompt at multiple levels of granularity, from agents to single actions, and interweave Playwright or traditional frameworks when you need them. Use any major model provider. 22k GitHub stars, 700k+ weekly downloads. Get started in 5 minutes.

This quickstart uses Model Gateway. LLM requests for Stagehand are routed through your Browserbase API key, so you don’t need a separate model provider account. You can also bring your own API key if you prefer.

Discord

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Full documentation

Templates

Ready-to-use examples

Quickstart

Get your API key

Your API key is displayed in the Dashboard Navigation row. The API key is all you need to get started. The project is inferred from your API key.

Set environment variables

export BROWSERBASE_API_KEY="your-api-key"

Install and run

Node.js
Python
Java
Go
Ruby

pnpm add @browserbasehq/stagehand
npm pkg set type=module

import { Stagehand } from "@browserbasehq/stagehand";

const stagehand = new Stagehand({
  env: "BROWSERBASE",
  model: "google/gemini-3-flash-preview",
});
await stagehand.init();

const page = stagehand.context.pages()[0];
await page.goto("https://news.ycombinator.com");

// Let AI click
await stagehand.act("click on the comments link for the top story");

// Extract structured data
const data = await stagehand.extract("extract the title and points of the top story");
console.log(data);

await stagehand.close();

Save as script.ts, then run:

pnpm dlx tsx script.ts

uv init
uv add stagehand

from stagehand import Stagehand

def main():
  client = Stagehand()

  response = client.sessions.start(model_name="google/gemini-3-flash-preview")
  session_id = response.data.session_id
  print(f"Session started: {session_id}")

  client.sessions.navigate(id=session_id, url="https://news.ycombinator.com")
  print("Navigated to Hacker News")

  # Let AI click
  act_result = client.sessions.act(id=session_id, input="click on the comments link for the top story")
  print(f"Act result: {act_result}")

  # Extract structured data
  result = client.sessions.extract(
      id=session_id,
      instruction="extract the title and points of the top story"
  )
  print(f"Extracted: {result}")

  client.sessions.end(id=session_id)

if __name__ == "__main__":
  main()

Save as script.py, then run:

uv run script.py

Debug in Session Inspector

See every AI decision in the Stagehand tab of your session at https://browserbase.com/sessions/{session_id}.

Next steps

Stagehand docs

Learn about Stagehand primitives, models, and Browserbase configurations

npx create-browser-app

Scaffold a Stagehand project in one command. TypeScript, zero-config.

PlaywrightConnect Playwright to Browserbase cloud browsers in minutes. Run headless browser automation at scale with session recording and debugging.

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Discord

Docs

Templates

​Quickstart

​Next steps

Stagehand docs

npx create-browser-app

Quickstart

Next steps