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Run · SandboxesPreview

Untrusted code, in a machine of its own.

Isolated machines for running untrusted code and computer use.

Sandboxes
$ npm install @sylphx/sdk$ sylphx sandboxes leases list

What it does

  • One lease, one machine

    Every session gets its own microVM from a standby pool, at the shape the job asks for.

  • Wiped, never reused

    A lease is fenced and expired, wiped on release; a budget ends it with a typed reason.

  • Built for agents

    Exec and files, an E2B-compatible API, browser leases over CDP and computer-use desktops — one lease underneath.

What it costs

Prices are published when billing opens.

Plan limits

Free

Projects
1
Members
1
Custom domains
None
Databases
1
Concurrent runners
10

Pro

Projects
Unlimited
Members
Unlimited
Custom domains
Unlimited
Databases
Unlimited
Concurrent runners
100

Where to go next