Founder of a listed tool
Vasek Mlejnsky
Co-founder and CEO, named behind the E2B listing on Anchor Terminal.
What Vasek builds
E2B B · Code execution sandboxes
Firecracker microVM sandboxes for agent code, driven from Python and JavaScript SDKs, a CLI or a REST API.
Co-founder and CEO, researched 27 October 2026 · the people behind it
Works with
- Tomas Valenta Co-founder and CTO
Backed by
Kaya Decibel Insight Partners Sunflower Capital
Questions
Who is Vasek Mlejnsky?
Vasek Mlejnsky is co-founder and CEO of E2B, which runs cloud sandboxes where AI agents execute code. He and Tomas Valenta previously built DevBook, an in-browser docs and playground tool whose sandbox technology became the basis of E2B in 2023. E2B raised a $21m Series A led by Insight Partners in July 2025.
What does E2B make?
Anchor Terminal lists E2B from E2B. Firecracker microVM sandboxes for agent code, driven from Python and JavaScript SDKs, a CLI or a REST API.
Who has invested in E2B?
The sources our research read name Kaya, Decibel, Insight Partners and Sunflower Capital.
How are Vasek's tools graded?
E2B is graded B, 68.5 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.
Sources (6)
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