Stagehand

Stagehand is an open-source SDK from Browserbase for browser automation involving language models. It combines ordinary browser operations with natural-language instructions for programmatic agent workflows.

Its methods include Act for actions, Observe for locating elements and Extract for structured data collection. The current SDK supports TypeScript, Python and Go, along with mechanisms for reusing previously resolved actions.

Developers can use Stagehand to navigate web interfaces, fill forms and extract information from pages whose markup changes. Local execution is possible, while Browserbase-hosted browsers are a separate deployment option.

The SDK itself is free and open source. AI-driven operations normally require access to a separately billed model, and hosted browsers may have their own charges; performance depends on the target website, permissions and setup.