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Stagehand

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What Stagehand is

Stagehand is a free, open-source SDK from Browserbase for building browser agents. It combines Playwright-style controls such as goto, click, type, locator, and screenshot with the Act, Observe, and Extract primitives, allowing scripts to mix deterministic page methods with natural-language instructions. Stagehand says it detects website changes and refreshes how actions are carried out. It supports nested iframes, closed Shadow DOMs, WebMCP, clipboard operations, batched commands, deep locators, and OTel tracing. Metrics expose per-method token usage and inference timing. Security features include network-level controls and domain allowlists and blocklists. TypeScript, Python, and Go are supported. Stagehand works with Chromium browsers including Chrome, Edge, Arc, and Brave, and can run locally without Browserbase. Major model providers, including OpenAI, Anthropic, and Google Gemini, are supported through the Vercel AI SDK. It runs as a browser extension and offers self-hosted and cloud execution options. Local runs require Chrome installed; cloud browser sessions do not.

Who it suits

It suits developers building browser agents who want AI actions alongside familiar browser APIs. Teams can choose local, cloud, extension, or self-hosted execution and connect supported model providers.

What it does well

  • Free and open source
  • Act, Observe, and Extract primitives
  • Supports TypeScript, Python, and Go
  • Chromium browser compatibility
  • Network and domain access controls

What to know first

  • Local runs require Chrome installed
  • Browser-focused compatibility is Chromium-based
  • AI model access uses supported providers
  • Help is directed through community Discord

Verdict

Stagehand offers browser-agent controls that combine Playwright-style scripting with natural-language actions and self-healing behavior. Its open-source delivery, security controls, and deployment choices suit developers automating Chromium pages.

Facts from Stagehand's own pages

Additional features
The site lists WebMCP, clipboard support, batched commands, deep locators for nested iframes, and OTel support. · stagehand.dev, 5 Oct 2026
AI primitives
Act, Observe, and Extract let agents use natural-language instructions to automate pages. · stagehand.dev, 5 Oct 2026
Application workflow
The integrations guide includes a Stripe example that uses WebMCP tools with Stagehand to fill and submit Stripe Checkout. · docs.stagehand.dev, 11 Oct 2026
Browser compatibility
Stagehand is compatible with Chromium-based browsers including Chrome, Edge, Arc, and Brave. · docs.stagehand.dev, 11 Oct 2026
Browser control
Stagehand combines Playwright-style page methods such as goto, click, locator, and screenshot with AI primitives. · stagehand.dev, 5 Oct 2026
CLI agents
The integrations guide documents connections for Claude Code, Codex, Cursor, fx, and Pi. · docs.stagehand.dev, 11 Oct 2026
Control
Scripts can mix AI-powered actions with deterministic page APIs such as goto, click, type, locator, and screenshot. · docs.stagehand.dev, 11 Oct 2026
Core actions
Its natural-language primitives are Act, Extract, and Observe. · docs.stagehand.dev, 11 Oct 2026
Deployment
The installation guide says local runs require Chrome installed, while cloud browser sessions do not. · docs.stagehand.dev, 11 Oct 2026
Integrations
Documented integrations include Claude Toolset, Eve by Vercel, Deep Agents, CrewAI, Mastra, and Vercel AI SDK. · docs.stagehand.dev, 11 Oct 2026
Languages
Stagehand provides SDKs for TypeScript, Python, and Go. · docs.stagehand.dev, 11 Oct 2026
Maker
Stagehand is created and maintained by Browserbase. · docs.stagehand.dev, 11 Oct 2026
Observability
The homepage lists built-in OTel tracing, and the introduction says Stagehand exposes per-method token usage and inference timing through metrics(). · stagehand.dev, 11 Oct 2026
Page support
The site lists support for nested iframes and closed Shadow DOMs. · stagehand.dev, 5 Oct 2026
Product
Stagehand is an SDK for browser agents that combines familiar Playwright-style APIs with self-healing actions. · stagehand.dev, 11 Oct 2026
Purpose
Stagehand is an open-source SDK for browser agents. · stagehand.dev, 5 Oct 2026
Runtime
The installation guide recommends Node.js and lists Node.js 22.18 or later, Python 3.11 or later, and Go 1.26 or later as requirements; it also says Bun is supported. · docs.stagehand.dev, 11 Oct 2026
Security controls
The site lists network-level security and domain allowlists and blocklists. · stagehand.dev, 5 Oct 2026
Security feature
The Stagehand homepage lists network-level security and domain allowlists and blocklists among its capabilities. · stagehand.dev, 11 Oct 2026
Self-healing
The site says Stagehand detects site changes and refreshes how actions happen on the page automatically. · stagehand.dev, 5 Oct 2026
Support
The documentation lists community help through Discord and provides [email protected]. · docs.stagehand.dev, 11 Oct 2026
Use locally
Browserbase says Stagehand works locally with any Chromium browser and does not require Browserbase. · browserbase.com, 5 Oct 2026

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