E176: Why All AI Agents Will Need Cloud Sandboxes

E176: Why All AI Agents Will Need Cloud Sandboxes

Author: Robby (MTF); Tim (Essence VC) June 24, 2025 Duration: 37:19

Vasek Mlejnsky is Co-Founder & CEO of E2B, the open-source runtime for executing AI-generated code in secure cloud sandboxes. Essentially, they give AI agents cloud computers.

Their open source repos, particularly e2b which has 9K GitHub stars, have been widely adopted to help securely run AI-generated code.

E2B has raised $12M from investors including Decibel and Sunflower.

In this episode, we dig into:

  • Why agents need a sandbox

  • Building a new category of infra tooling, much like LaunchDarkly

  • Some of their viral content moments - including Greg Brockman sharing their videos

  • Figuring out the right commercial offering

  • Why they don't agree with pricing per token

  • Why moving from Prague to the Bay Area felt essential for them as founders


Building a company around open source software is a unique and often misunderstood path, full of specific challenges and rare opportunities. The Open Source Startup Podcast digs into that journey directly with the people who have navigated it, moving beyond theory to the practical realities shared in conversation. Hosts Robby and Tim bring their distinct perspectives from MTF and Essence VC to these discussions, creating a space where founders speak candidly. You’ll hear from the architects behind names like HashiCorp, MongoDB, and Vercel, as well as leaders from Chronosphere, DBT, and mobile.dev, as they unpack their experiences. This podcast focuses on the pivotal decisions around community building, monetization strategies, and maintaining project ethos under the pressures of scaling a business. Each episode serves as a detailed case study, revealing how these companies turned publicly available code into sustainable, impactful enterprises. The dialogue naturally explores the tensions between open collaboration and commercial needs, offering a real-world blueprint that is both instructive and nuanced. For anyone curious about the intersection of community-driven development and venture-scale growth, this series provides an essential and unfiltered resource.
Author: Language: English Episodes: 100

Open Source Startup Podcast
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