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Stagehand

Stagehand is an open-source TypeScript SDK for building browser agents that interact with websites and extract structured data through model-assisted browser actions.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Stagehand — OpenViST project profile in Agent Frameworks.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Stagehand when an application needs a browser agent that can combine website interaction, persisted sessions and structured extraction in one developer workflow.

Who it is for

  • TypeScript developers building browser agents
  • Teams creating browser-automation applications
  • Developers collecting structured data from websites
  • Builders needing persisted signed-in browser sessions

Documented uses

  • Navigate and interact with websites through natural-language actions
  • Identify page elements and obtain selectors for browser operations
  • Reuse cookies from a local browser profile across runs
  • Extract website data into a defined schema
Before you choose

Requirements & limits

The repository is publicly available under the MIT license. The documented example requires an OpenAI API key and application credentials supplied through environment variables.

  • TypeScript is the documented primary language.
  • The example uses a local browser and persists cookies in ./browser-data.
  • OpenAI is the demonstrated model backend.
  • The extraction example uses Zod for schema validation.
  • The repository context lists Playwright, CDP and headless Chrome alongside browser-agent and data-extraction use cases.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Set up a persistent browser-agent session

Launch a local browser, configure Stagehand with OpenAI and preserve cookies for later runs.

Before you start

  • A TypeScript project using the Stagehand SDK.
  • A local browser launch with a user-data directory.
  • An OpenAI API key available as OPENAI_API_KEY.

Steps

  1. Launch the local browser with userDataDir set to ./browser-data.

  2. Create a Stagehand instance with an OpenAI model name and OPENAI_API_KEY.

  3. Use the browser context and Stagehand methods for the documented site interaction.

  4. Close the Stagehand instance and browser after the workflow.

Expected outcome

Later browser-agent runs can start with the session data stored in ./browser-data.

Guide limitations

  • The example demonstrates an OpenAI model configuration but does not establish support for every OpenAI model.
  • The example documents session persistence and interaction, not a compatibility guarantee for every website.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
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Sources checked
2 October 2026
Original website title
browserbase/stagehand · Official homepage title · retained in its source language
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