About Agent 37
Cloud sandboxes for running AI agents, positioned as lower-cost agent infrastructure.
Code Sandboxes
7 code sandboxes tools you can use instead of Agent 37, 3 of them open source. Summaries come from each vendor's own site. Links checked Oct 16, 2026.
Cloud sandboxes for running AI agents, positioned as lower-cost agent infrastructure.
At a glance
| Tool | What it does | Open source | Head to head |
|---|---|---|---|
| AIO Sandbox | All-in-one agent sandbox with browser, shell, file access, VSCode Server, and MCP in one container. | Yes | Agent 37 vs AIO Sandbox |
| Cloudflare Sandbox SDK | Run untrusted or generated code in Linux VMs or isolated Workers on Cloudflare. | No | Agent 37 vs Cloudflare Sandbox SDK |
| Daytona | Secure sandboxes for running AI-generated code. | Yes | Agent 37 vs Daytona |
| E2B | Isolated cloud machines for agents to run code, browse, and use tools. | Yes | Agent 37 vs E2B |
| Modal | Serverless cloud for running, training, and serving AI workloads, including sandboxes. | No | Agent 37 vs Modal |
| Runloop | Code sandboxes (Devboxes) for AI coding agents, plus evaluations. | No | Agent 37 vs Runloop |
| Vercel Sandbox | Isolated Linux microVMs on Vercel for untrusted or agent-generated code. | No | Agent 37 vs Vercel Sandbox |
Code Sandboxes
All-in-one agent sandbox with browser, shell, file access, VSCode Server, and MCP in one container.
Run untrusted or generated code in Linux VMs or isolated Workers on Cloudflare.
Secure sandboxes for running AI-generated code.
Isolated cloud machines for agents to run code, browse, and use tools.
Serverless cloud for running, training, and serving AI workloads, including sandboxes.
Code sandboxes (Devboxes) for AI coding agents, plus evaluations.
Isolated Linux microVMs on Vercel for untrusted or agent-generated code.
FAQ
Agent Stack Directory lists 7 other code sandboxes tools: AIO Sandbox, Cloudflare Sandbox SDK, Daytona, E2B, Modal, Runloop, Vercel Sandbox.
Yes. Among the alternatives we list, these are marked open source: AIO Sandbox, Daytona, E2B.
Cloud sandboxes for running AI agents, positioned as lower-cost agent infrastructure. (Summary based on agent37.com, link checked 2026-10-16.)