# Vercel Sandbox

> Vercel Sandbox gives each sandbox its own Firecracker microVM with a dedicated kernel, filesystem and network, starting in milliseconds; it runs on the same Hive infrastructure that powers Vercel's 2M+ daily builds and defaults to a 5-minute timeout with Active CPU billing.

Ephemeral Firecracker microVMs on Vercel, one per sandbox.

- **Category:** Execution Sandbox
- **License:** Proprietary (platform); @vercel/sandbox SDK is Apache-2.0
- **Language:** TypeScript
- **Self-hosted:** No
- **GitHub stars:** 208 (2026-10-04)
- **Repository:** https://github.com/vercel/sandbox
- **Last verified:** 2026-10-04

> Caveat: Managed-only; the platform is proprietary (the @vercel/sandbox SDK is Apache-2.0).

Source: https://agent.c8.fit/tools/vercel-sandbox/