Firecracker
4 mentions across all digests
Firecracker is an open-source microVM technology used by Vercel Sandbox to provide fast, isolated execution environments for AI agents, enabling sub-second startup times and safe execution of untrusted code at production scale.
Anthropic's Hidden Vercel Competitor "Antspace"
Reverse engineering Claude Code exposed Anthropic's undocumented "Antspace" platform—a Firecracker-based infrastructure service competing with Vercel and Railway for AI application hosting.
Optimizing Vercel Sandbox snapshots
Vercel slashed Sandbox snapshot restore latency 40x—from 40+ seconds to under 1 second—using parallelized S3 downloads and NVMe local caching (95% hit rate), enabling instant Automatic Persistence.
How Notion Workers run untrusted code at scale with Vercel Sandbox
Notion Workers runs untrusted developer code safely in Vercel Sandbox using Firecracker microVMs with network-layer credential injection, enabling AI agents to execute extensions securely at scale.
Run untrusted code with Vercel Sandbox, now generally available
Vercel's Firecracker-based Sandbox execution layer reaches GA, enabling AI agents like Roo Code to safely run untrusted code with sub-second startup times and full isolation at production scale.