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  "markdown": "Founder.\n\nPaul Klein founded Browserbase, which runs cloud browsers and related infrastructure for AI agents. In June 2025, about 16 months after starting the company, he announced its $40M Series B together with Director.ai, a product for automating web tasks from a prompt.\n\n- LinkedIn: https://www.linkedin.com/in/paulkleiniv/\n\n## What Paul builds\n\n- [Browserbase](https://www.anchorterminal.com/tools/browserbase.md), graded BB, 72.3/100, in Browser automation. Hosted headless browsers for agents over CDP, plus Fetch and Search APIs and the Stagehand framework. Founder, researched 2026-10-26.\n\n## Backed by\n\n- [Notable Capital](https://www.anchorterminal.com/investors/notable-capital/)\n- [Kleiner Perkins](https://www.anchorterminal.com/investors/kleiner-perkins/)\n- [CRV](https://www.anchorterminal.com/investors/crv/)\n- [Okta](https://www.anchorterminal.com/investors/okta/)\n- [Reed McGinley-Stempel](https://www.anchorterminal.com/investors/reed-mcginley-stempel/)\n\n## Questions\n\n### Who is Paul Klein IV?\n\nPaul Klein founded Browserbase, which runs cloud browsers and related infrastructure for AI agents. In June 2025, about 16 months after starting the company, he announced its $40M Series B together with Director.ai, a product for automating web tasks from a prompt.\n\n### What does Browserbase make?\n\nAnchor Terminal lists Browserbase from Browserbase. Hosted headless browsers for agents over CDP, plus Fetch and Search APIs and the Stagehand framework.\n\n### Who has invested in Browserbase?\n\nThe sources our research read name Notable Capital, Kleiner Perkins, CRV, Okta and Reed McGinley-Stempel.\n\n### How are Paul's tools graded?\n\nBrowserbase is graded BB, 72.3 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.\n\n## Sources\n\n- https://www.linkedin.com/in/paulkleiniv/\n- https://www.browserbase.com/\n- https://docs.browserbase.com/welcome/introduction\n\nThese are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page, /about/#author). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.\n",
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