# Cursor Cloud Agents can now run in Vercel Sandbox

DevFeed: [Cursor Cloud Agents can now run in Vercel Sandbox](<https://devfeed.tech/articles/cursor-cloud-agents-can-now-run-in-vercel-sandbox-1075.md>)

Original publisher: [Read original article](<https://vercel.com/changelog/run-cursor-cloud-agents-vercel-sandbox>)

Author: Allen Zhou

Published: 2026-09-03T15:00:00Z

Content type: release

Language: en

Sources: [Vercel News](<https://devfeed.tech/sources/vercel-news.md>)

Topics: [cursor](<https://devfeed.tech/topics/cursor.md>), [Vercel](<https://devfeed.tech/topics/vercel.md>), [Agent Harness](<https://devfeed.tech/topics/agent-harness.md>), [Firecracker](<https://devfeed.tech/topics/firecracker.md>)

Tags: [agents](<https://devfeed.tech/tags/agents.md>), [apis](<https://devfeed.tech/tags/apis.md>), [architecture](<https://devfeed.tech/tags/architecture.md>), [cursor](<https://devfeed.tech/tags/cursor.md>), [enterprise](<https://devfeed.tech/tags/enterprise.md>), [firecracker](<https://devfeed.tech/tags/firecracker.md>), [guide](<https://devfeed.tech/tags/guide.md>), [sandbox](<https://devfeed.tech/tags/sandbox.md>), [scale](<https://devfeed.tech/tags/scale.md>), [vercel](<https://devfeed.tech/tags/vercel.md>), [virtual-machines](<https://devfeed.tech/tags/virtual-machines.md>), [workflows](<https://devfeed.tech/tags/workflows.md>)

## AI overview

Cursor Cloud Agents can run in Vercel Sandbox, using isolated Firecracker microVMs as their execution environment. The architecture combines Cursor's agent harness and inference loop with Vercel Functions and Workflows for durable request handling, worker provisioning, monitoring, retries, cleanup, and short-lived user-scoped credentials.

## Source excerpt

Cursor Cloud Agents can now run in Vercel Sandbox instead of Cursor's hosted machines. Cursor manages the agent harness and inference loop. Its Self-Hosted Machines APIs let you supply the execution environment where agents clone repositories, edit files, and run commands and tests. Self-Hosted Machines requires a Cursor Enterprise plan. Vercel Sandbox provides that execution environment as an isolated Firecracker microVM for each agent request. Vercel Functions and Vercel Workflows form a durable control plane that claims queued agent requests, provisions workers, monitors sessions, and cleans up automatically. With this architecture, you get: A scale-to-zero worker pool without long-lived virtual machines A dedicated, isolated Sandbox for every agent request Durable retries when a worker or session fails Short-lived, user-scoped credentials inside each Sandbox Follow the step-by-step guide to deploy the reference implementation to your own Vercel account, or learn more in the Vercel Sandbox documentation. Read more