Stagehand
ActiveDescription
The SDK for browser agents by Browserbase. Provides act, extract, and observe primitives for AI agents to naturally browse and interact with web pages.
Key Features
- Three-primitive API — act (execute actions), extract (get data), observe (inspect page)
- Hybrid natural language + code — freely switch between AI-driven and deterministic code control
- Auto-caching and self-healing — cache repeat actions to skip LLM inference, auto-fix on page changes
- TypeScript and Python dual SDK — TS and Python implementations for different tech stacks
- Zod structured data extraction — define targets with Zod schemas, get type-safe structured results
- Agent mode — built-in agent() method for autonomous multi-step complex task execution
Use Cases
💡 Building browser agents that autonomously browse and interact with web pages
💡 Automating testing of web apps requiring login or complex interactions
💡 Batch-extracting structured product or pricing data from any website
💡 Real-time web data collection layer for RAG systems
💡 Creating reusable web automation workflow scripts
Strengths & Limitations
✅ Strengths
- • Actively maintained, recent updates
- • High community interest (24.0k stars)
- • Permissive open-source license (MIT)
- • Established track record (2 years in production)
Categories
Quick Start
npm install @browserbasehq/stagehand
import { Stagehand } from "@browserbasehq/stagehand";
const stagehand = new Stagehand({
env: "LOCAL",
});
await stagehand.init();
const page = stagehand.context.pages()[0];
await page.goto("https://github.com/browserbase");
await stagehand.act("click on the stagehand repo");
const { author, title } = await stagehand.extract(
"extract the author and title of the latest PR",
{
author: z.string(),
title: z.string(),
}
);
console.log(author, title);
await stagehand.close();