Paul Klein IV
@pk_iv • 20,128 subscribers
founder of @browserbase
Shorts
Videos
Your agents suck when using the web because 85% of it doesn't have an API. Browserbase gives them everything they need to do work online. Leading AI companies like Ramp, Lovable, and Clay trust us to power agents that do real work on behalf of real people. With a single API key, your agent gets everything it needs to navigate the wild web: browsers, search, fetch, identity, a sandbox runtime, and model gateway. Stop waiting on integrations, build agents that can browse and interact with the web just like humans.
Paul Klein IV1,728,105 views • 3 months ago
Developers automated the web. Now everyone can. Announcing Director and our $40M Series 🅱️
Paul Klein IV734,871 views • 1 year ago
If I could only follow one person on X, it would be Aaron Levie, CEO of Box. We sat down to speak about why the REAL economy hasn't felt AI yet, the "model overhang" between capability and adoption, and what founders should actually build now that software is cheap. 00:00 - Cold open: agents use data like people do 01:53 - Is Redwood City the new AI epicenter? 05:18 - 90% of enterprise data is unstructured and was never automatable 07:46 - The model overhang: capability is outpacing adoption 10:35 - Why coding got the fastest AI takeoff 16:24 - Inside Box's agent-first rebuild 19:15 - Headless SaaS: agents will outnumber humans 100:1 25:41 - Model routing + why the applied layer wins, even bitter-lesson-pilled 27:45 - GTM is the new moat Checkout Navigators, our new pod on Youtube, Spotify, and Apple Podcasts!
Paul Klein IV33,108 views • 16 days ago
I've been using Claude Code completely wrong. I gave it a custom skill and Browser CLI tools and letting it do work for me. It can open pages, click buttons, fill in forms all from your authenticated browser. Just published it to the marketplace, install it in 2 commands.
Paul Klein IV229,523 views • 8 months ago
You don't need to pay $200 for AI. We're launching Open Operator - an open source reference project that shows how easy it is to add web browsing capabilities to your existing AI tool. It's early, slow, and might not work everywhere. But it's free and open source! 🔗👇
Paul Klein IV349,171 views • 1 year ago
The next billion dollar company will be powered by Browserbase. We already help hundreds of AI startups automate the web at scale. Now, we've raised a $21 million Series A round, co-led by Kleiner Perkins and CRV, with participation from Okta Ventures. What will you 🅱️uild?
Paul Klein IV381,249 views • 1 year ago
Thanks to my startup, I gained 30 pounds. We get free lunches at Browserbase, but the default options are pretty unhealthy and the website is really slow. So today I vibe coded something to order lunch for me every week. But there was a problem: The menu changes weekly, which means any hard coded web automation breaks. This is where Stagehand 🤘 shines. In under 150 lines of code and using a super cheap model like gpt-4o-mini, I was able to easily put something together. And now it will run every time, no matter how much the website changes. Time to get swole 💪
Paul Klein IV69,644 views • 10 months ago
AI agents are UNRELIABLE because you're giving them too much control. Instead of using a single prompt, structure your agent as a series of high level steps. In this demo, I'm running the same steps across two different websites. Good steps = good output. It's that simple!
Paul Klein IV71,482 views • 1 year ago
hold off on your YC X25 research until tuesday - we’re about to make it 10x easier 👀
Paul Klein IV53,185 views • 1 year ago
Today I turn 30. That means I've spent over 25% of my life working on startups, which feels pretty unreal. I've found one trick that keeps me going, even when things aren't going well. And of course, it came from Matthew McConaughey... When I'm doubting myself, I think of what my 20-year-old self would say if they met me. That version of me would be shocked and amazed. It's a great reminder that I've greatly exceeded my own expectations, and I'm probably underestimating what the future holds. When I'm facing an incredible challenge, I think of what my 40-year-old self would say. Almost always, this version of me is laughing. As if, no matter how impossible this current challenge seems, I'm likely making it seem more dire than it actually is. The gap between who we were and who we'll become is where all the magic happens. Here's to another decade of becoming.
Paul Klein IV51,626 views • 1 year ago