The open-source sandbox
for long-running agents.
Durable Firecracker VMs that pause indefinitely, resume instantly, and run as long as your agents need.
Your agents need their own computers
Stateful, secure sandboxes for agents that work alongside humans
// agent.ts — long-running harnessimport { Sandbox } from "@superserve/sdk"const sbx = await Sandbox.create({ name: "claude-sandbox" })await sbx.commands.run("npm i -g @anthropic-ai/claude-agent-sdk")await sbx.commands.run("claude -p 'refactor src/**/*.ts'")await sbx.pause() // resume later with the same stateComputers that match how agents actually work
Start
Instantlyfrom fully customizable templates
Snapshot
Anytimeto checkpoint, fork and rollback
Pause
Indefinitelyto save idle costs
Resume
Automaticallyfrom exactly where you left off
Secured for AI workloads
Firecracker isolation
Every agent and tool call runs in its own microVM. No shared kernels or cross-tenant state — stronger isolation than containers or local worktrees.
Credentials broker
Agents should not possess credentials. Our broker sits between your agent and the APIs it calls, eliminating exfiltration risk with brokered access.
Network controls
Control egress traffic to specified URLs and IPs. Every outbound connection is logged, every rule is yours.
SOC 2 Type 2 · HIPAA · GDPR
Security documentation and compliance reports available in the trust center.
View trust center →Best in class agent experience
Streaming
Execute code and commands in isolated environments with real-time output streaming.
Durable filesystem
Read, write, and manage files across sessions. State persists exactly as the agent left it.
Elastic resource allocation
Let your agents request CPU/memory resources on the fly from within the box.
Preview URLs
Expose ports from inside a sandbox to a public URL for instant previews.
MCP
Connect to your sandboxes via the Model Context Protocol from any MCP-compatible agent.
Docker support
Run Docker containers natively inside the sandbox, with no compromises on the tooling your agents depend on.
Start for free, pay as you scale.
No credit card to start. Per-second billing.
Your first sandbox
in seconds.
npm install @superserve/sdk