agentOS

A virtual operating system for agents with execution, filesystem, orchestration, and apps in one lightweight library.

agentOS: Early access, open to join. Get it at agentos-sdk.dev.

agentOS is a virtual operating system designed for AI agents, delivered as a lightweight library that integrates directly into existing backend infrastructure. Rather than requiring sandboxes, VMs, or additional SaaS layers, agentOS gives each agent its own runtime environment with native JavaScript execution, durable filesystems, orchestration primitives, and deployable apps. Built on WebAssembly and V8 isolates—the same technology powering Chrome and Cloudflare—it delivers 92x faster cold starts, 47x less memory usage, and 254x cheaper execution costs. Developers can bring any agent framework, including Claude Code, Codex, and OpenCode, while leveraging built-in support for SQLite, workflows, queues, cron schedules, REST APIs, and multiplayer patterns. agentOS ships wherever your backend ships.