Paul Klein IV

@pk_iv

founder of @browserbase

browserbase.com

Joined October 2010

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Paul Klein IV
@pk_iv
Aug 10
Stagehand v4 has one mission: Destroy Playwright. Stagehand now runs INSIDE the browser, enabling the same speed as a local browser but at massive scale. If your agent uses the Playwright MCP, you'll get a 2x perf boost just by switching. stagehand.dev
Stagehand
@Stagehanddev
Aug 10
Introducing Stagehand v4: the SDK for browser agents. Playwright was built for testing, we built Stagehand for your agent: with improved context management, self-healing actions, and iframe support.
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Paul Klein IV
@pk_iv
13h
in 2023, i made the early bet that ai is going to be the web's next user. since then, we've have doubled down on the contrarian view that we won't need to rebuild the web for ai. our mission is to give intelligence a way to act in a world that was only ever built for humans.
Paul Klein IV
@pk_iv
Apr 2, 2024
Today, I'm excited to announce my new company @browserbase. We're building the piece of infrastructure that every AI application needs: a programmable web browser. We're funded, growing fast, and looking for engineers who want to build foundational tools for AI. Join us!
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Paul Klein IV
@pk_iv
Aug 11
the new stagehand.dev website is one of the most insane things i’ve ever seen on the web. can you find all 10 easter eggs?
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Stagehand
@Stagehanddev
Aug 10
Introducing Stagehand v4: the SDK for browser agents. Playwright was built for testing, we built Stagehand for your agent: with improved context management, self-healing actions, and iframe support.
Paul Klein IV
@pk_iv
Aug 6
navigate merch is some of the best we've made! available exclusively at our conference NAVIGATE on 9/10 in sf: browserbase.com/navigate
Browserbase
@browserbase
Aug 6
Navigate 2026 is happening in one month, on Sept 10th in SF. We're hosting the conference for the best teams shipping agents. Some of the speakers joining us are: > Malte Ubl, CTO of @vercel > Thariq Shihipar, MTS @AnthropicAI > Monica Bajaj, SVP of Engineering @okta >
Paul Klein IV
@pk_iv
Aug 6
“Hyperagent is to OpenClaw what a Macintosh is to a Linux box." Days after Airtable's $1.285B acquisition, @howietl is going all in on his new company Hyperagent. We sat down a few weeks before the news on why he's wrapping the raw power of open agents in something
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Paul Klein IV
@pk_iv
Aug 5
Yesterday, Airtable got acquired for $1.285B by Bending Spoons. What people don't know is that Hyperagent spun out into it's own company. Howie Liu (@howietl) is going all in on agents. On this episode of Navigators, filmed a few weeks ago, I sat down with Howie to talk through