Browserbase

Browserbase runs headless browsers in the cloud for AI agents and web automation. Developers start sandboxed browser sessions through an API and control them with Playwright, Puppeteer, Selenium or the company's open-source Stagehand framework, without operating their own browser fleet. The platform handles scaling, proxies, stealth browsing, authentication and session recording, and adds search and fetch APIs that return web content as HTML, JSON or markdown for agents. Teams use it to fill forms, retrieve documents from portals, verify records, migrate data and extract information from sites without APIs. It serves AI startups and larger companies building agents that must operate on the web.