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Celesto gives AI agents their own computer. Spin up a sandbox in seconds, let your agent run untrusted code, browse the web, or use a terminal — all isolated from your infrastructure. Run it yourself with the open-source stack, or use the managed platform.

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AI Sandboxes

SmolVM

Open-source microVM sandbox for running untrusted agent-generated code with fast startup and strong isolation.

Celesto Platform

Managed sandboxes on demand. Use the Celesto SDK to launch, orchestrate, and operate agent computers at scale.

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Agent tooling

Agentor

Build production-ready AI agents with tool use, MCP server support, and A2A communication.

SuperAuth

OAuth-based access and secure identity flows for agent tools like Gmail and Calendar.

Quickstart

Launch your first sandbox in under a minute.

Join the community

Get help, share ideas, and connect with other builders on Slack.
Last modified on April 20, 2026