# Paul Klein IV

> Paul Klein IV is founder. Browserbase on Anchor Terminal, with grades, an about and public profiles.

- Canonical: https://www.anchorterminal.com/people/paul-klein-iv/
- Markdown: https://www.anchorterminal.com/people/paul-klein-iv/index.md (~750 tokens)
- Slim: https://www.anchorterminal.com/people/paul-klein-iv/index.min.md (~530 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/people/paul-klein-iv/index.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-10-28

Founder.

Paul 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.

- LinkedIn: https://www.linkedin.com/in/paulkleiniv/

## What Paul builds

- [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.

## Backed by

- [Notable Capital](https://www.anchorterminal.com/investors/notable-capital/)
- [Kleiner Perkins](https://www.anchorterminal.com/investors/kleiner-perkins/)
- [CRV](https://www.anchorterminal.com/investors/crv/)
- [Okta](https://www.anchorterminal.com/investors/okta/)
- [Reed McGinley-Stempel](https://www.anchorterminal.com/investors/reed-mcginley-stempel/)

## Questions

### Who is Paul Klein IV?

Paul 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.

### What does Browserbase make?

Anchor Terminal lists Browserbase from Browserbase. Hosted headless browsers for agents over CDP, plus Fetch and Search APIs and the Stagehand framework.

### Who has invested in Browserbase?

The sources our research read name Notable Capital, Kleiner Perkins, CRV, Okta and Reed McGinley-Stempel.

### How are Paul's tools graded?

Browserbase is graded BB, 72.3 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.

## Sources

- https://www.linkedin.com/in/paulkleiniv/
- https://www.browserbase.com/
- https://docs.browserbase.com/welcome/introduction

These 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.

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