YC W25
Butter
Embedded Sandboxes for Agents
About
Butter is building bVisor, an incredibly lightweight sandbox runtime for AI agents. It embeds directly into your local process, providing a safe bash environment without the overhead of VMs or remote infra.
Founder
Family Office Investors
Altss tracks family office allocations to YC-backed companies. Request access to see which family offices have invested in Butter.
See family office activityIndustry & Focus
B2BInfrastructure