Stagehand is an open-source SDK from Browserbase for building AI agents that control a web browser using plain-English instructions plus normal code.
In plain words
Classic browser automation breaks when a website changes, while fully AI-driven agents can be unpredictable. Stagehand mixes the two. Its main commands are act, which does something described in words; extract, which pulls data into a schema you define; and observe, which finds what actions are possible on a page. You can mix these with ordinary browser code, and it works in TypeScript, Python and Go.
A quick example
An agent logs into a billing site, then calls act to open the billing page and extract to return every invoice as a list with number, amount and paid status, checked against a schema.
Where you'll meet it
- Web automation and scraping with AI.
- Browser agents that fill forms and pull data.
Related
Sources
- DocsStagehand README, Browserbase (GitHub) · read 29 Sept 2026
- DocsIntroducing Stagehand, Stagehand docs · read 29 Sept 2026
Checked by WhatIsAI against the sources above · 29 Sept 2026. Spotted an error? Report it.